A GENERIC REVISION OF THE FOSSORIAL WASPS OFTHE TRIBES STIZINI AND BEMBICINI, WITH NOTESAND DESCRIPTIONS OF NEW SPECIES
By John Bernard ParkerProfessor of Biology, CathoUc University of America
INTRODUCTIONThe wasps comprising the subfamily, Bembicinae, as that sub-family is herein understood, have always been regarded by authori-ties on the Hymenoptera as forming two well-defined groups, thetribes Stizini and Bemhieini of the present paper, but the taxonomicposition assigned to the two groups within the family or super-family (Sphecidae or Sphecoidea) by the various authorities has notbeen uniform. Some, as for example, Ashmead, who, in his schemeof classification, attached great importance to the number of tibialspurs on the second leg, separated these two groups widely; butothers, as Cresson, Fox, Kohl, and Rohwer, have considered themclosely related and as forming subdivisions of a larger group, al-though these authorities differ from one another as to the rank thesesubdi;visions should be given. In accepting the subfamily referredto above I am following the classification adopted by J. H. Com-stock in his work, An Introduction to Entomology, published in1924.The genus Sphecius, which was long included in the tribe, Stizini,does not belong there, as Rohwer has pointed out.^ Consequentlythat genus is not considered in this revision.In a preceding paper,^ in which I undertook the revision of theBeTTibicini for North America north of Mexico, it was shown thatwithin that region this tribe is represented by the following genera
:
Bemhix Fabricius, Microhemhex Patton, Bicyrtes Latreille {=Be7n-hidxda Burmeister), Steniolia Say, Stictia Illiger, and StictiellaParker. Wasps included in the last two genera, Stictia and Stictiella,had up to the time of the publication of that paper been included inthe genus Monedula as that genus was understood by Handlirsch,
? Proc. U. S. Nat. Mus., vol. 50, 1921, p. 403.? Idem, vol. 52, 1917, pp. 1-155.No. 2776.?Proceedings U. S. National Museum, Vol. 75, Art. 522764?29 1 1
2 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75Kohl, and others. In that paper I pointed out, as Fox had done be-fore me, that the generic name Manedula as applied to wasps mustbe dropped because of its preoccupation in another field, and thatits place in Hymenoptera should be filled by the generic term StictiaIlliger. Vespa slgnata Linnaeus was at that time designated as thetype of the genus Stictia.I am fully aware of the difficulties that result from the breaking upof an old and long-established genus, such as the genus Monedula^into a number of new genera. But when an old genus, as is true in ithis case, embraces groups of species that possess characters rendering |them just as distinct from one another as these groups are individ-ually distinct from other long-recognized genera in the tribe, thereis nothing left to do but to give these gi'oups generic rank if ourtreatment of the tribe is to be at all consistent. That the genusMonedula,, as undersood by Handlirsch and others, was made up ofsuch groups was pointed out in my previous paper. One of thesegroups is embraced in the genus Stictia Illiger, typified by Vespasignata Linnaeus, and to a second group the name Stictiella wasgiven with Monedula foronosa Cresson designated as the type. For athird group Burmeister's subgeneric term Hemidula was proposedwith Monedula sinffularis Taschenberg as the type of this genus.Among tlie remaining described species not included in the threegenera named above, I distinguish four additional groups representedby the following species: Monedula vvZpina Handlirsch, Monedulachilensis Eschscholz. Monedula gravida Handlirsch, and Monedulaviagnifica Perty, each of which species is made the type of a newgenus. To this list of new genera I have added another based upona new species described in this paper under the name Selmanangv^tus.Inasmuch as I have not seen a specimen of Monedula singulnris iTaschenberg and find myself unable to determine from the available \descriptions of this species just what generic characters it exhibits,it is possible that one of the new genera proposed herein may proveto be a synonym of Hemidula Burmeister. But from data furnishedme by Dr. H. Bischoff, who at my request kindly examined a femaleof this species in the museum at Berlin, I learn that the mandibles areedentate, a character possessed in this tribe only by members of thegenus Mic7'obembex, to which genus Monedula singularis certainlydoes not belong. The uncertainty attached to the taxonomic positionof this species will doubtless remain until representatives of bothsexes of the species shall have been obtained.In making this generic revisi(m of the Bemticlni I have studiedwith some care the various characters that have been regarded as ofgeneric value in this tribe. Of these I have found the make-up ofthe maxillary and labial palpi of less value than that generally
ART. 5 GENERIC REVISION OF THE FGSSORIAL WASPS?PARKER 3
assigned to this feature. My examination of these structures in theseveral genera was not extensive enough to warrant the drawing ofbroad conclusions, but it was carried far enough to show that in tliegenus Bembh', in which the typical numbers are four segments for(he maxillary and two for the labial palpus, the variation in thenumber of segments in the palpi of some species is such as to lessenthe value of these structures for generic purposes. Variation invepect to the number of segments in the palpi was also found in sc?mespecies of Steniolla and Microhemhex, but the number of individualsexamined in each genus was too small to warrant any other state-ment than that variation does occur. In those genera in which thetypical number of segments for the maxillar^^ palpus is six and forthe labial four, I did not find variation in the limited number ofindividuals examined. Since these numbers, however, are regardedas indicating primitive conditions, this lack of variation is readilyexplained. It was this search for variation in the mouth parts thatled to the discovery that the number of segments in the palpi ofMonedula chUensis Eschscholz is five for the maxillary and threefor the labial instead of six and four as had heretofore been supposed.Since in this tribe (Bembieini) the ocelli are much distorted orare reduced to cicatrices. I have found the anterior ocellus providingone of the most reliable characters on which to separate tlie tribe intogenera. Although I have found within a genus some A-ariation withregard to the extent to which the reduction or distortion of theanterior ocellus has been carried, I have found no variation in theform which that reduction shows or to w'hich the reduction is tending.Another character in which I have found little or no variation withina genus is the pattern of the spatha of the male genitalia. With theexception of Thernpon and Tiichostictia, in which genera the spathaIt almost identical in form, each of the other genera has its ownpeculiar form of the spatha. I have refrained from using thischaracter in my keys for distinguishing the genera since there is nocorresponding character in the female, but for all that, it is a char-acter that must be taken into consideration. In addition to the char-acters cited above, I have made use of the pubescence of the eyes, theform of the dorsal border of the clypeus, and of certain differencesm the venation of the wings.In the accompanying table I have attempted to show my concep-tion of the relationship existing among the several genera includedin this revision. I have not, however, included in the table thegenus He7nidida, for the simple reason that I have had no opportu-nity to study a single specimen of Monedula singularis Taschenberg.
'J'he difficulty met in an attempt to show exact relationships amonggenera by a linear arrangement becomes apparent at once. If. asis generally conceded, the presence of unimpaired ocelli labial palpi
PEOCEEDINGS OF THE NATIONAL. MUSEUM VOL. 75
of four segments and maxillary palpi of six segments, and threespines on the eighth sternite of the male indicate primitive condi-tions in this group, then the first three genera included in the tablecertainly belong together and are more closely related to one anotherthan to any other of the genera considered. The other genera havebecome specialized along one or more of the three lines indicatedabove, and by selecting one of these three lines of specialization onwhich to base the main divisions we get a different grouping ofthe genera from that which would have been obtained had weselected either of the other two. It is my opinion that by makingthe variation in the form and extent of the reduction of the anteriorocellus the main point of departure the relationship existing amongthe several genera can best be brought out when a simple lineararrangement is employed. I have used such an arrangement inthe table submitted.
GENERIC REVISION OF THE FOSSORIAL WASPS PARKER
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jQ PROCEEDINGS OF THE NATIONAX. MUSEUM vol. 75With each genus of the tribe Benibicini I am presenting a key tothe species of the genus, including in the key only such species as Ihave had an opportunity to study from mounted specimens. In agreat many cases I have had only one specimen of a species fromwhich to derive characters to be used in separating that species fromother species of the genus included in the key. Any key so con-structed must of necessity prove faulty, since color characters, onwhich we are so often forced to rely in separating species, oftenvary widely within the species, and since, in the case of some species,even structural differences are not constant. Defects arising out ofthese difficulties will be found most abundant in the key to the speciesof the genus Bemhix, wherein I have disregarded geographical dis-tribution on the theory that if two wasps belong to different speciesthere should be some way of distinguishing one from the other asidefrom their geographical origin. I am fully aware of the imperfec-tions in these keys, but I am submitting them as the best I could devisefrom the material available. I, therefore, ask of those who mayattempt to make use of them a full measure of their generous sym-pathy, and to those who may find them intolerably bad I shall lookwith expectancy for a speedy publication of something better.To the following institutions and to those connected with themhaving charge of their collections of Bembicine wasps I desire toacknowledge my indebtedness for the loan of material and for sug-gestions and assistance in the preparation of this paper: The Cali-fornia Academy of Sciences, Carnegie Museum in Pittsburgh, Cor-nell University, Massachusetts Agricultural College, Academy ofNatural Sciences of Philadelphia, Zoologisches Museum der Uni-versitat. Berlin, American Museum of Natural History, KansasUniversity, and the United States National Museum.Throughout the studies connected with the preparation of thismanuscript I have ]'eceived helpful suggestions from Mr. S. A.Rohwer. of the Bureau of Entomology, United States Departmentof Agriculture, an'd wish to express my gratitude to him. I alsowish to give credit to Miss Eleanor T. Armstrong, of the same bu-reau, for the preparation of most of the illustrations which areincluded in the manuscript.DESCRIPTION OF SPECIESHymenoptera belonging to the two tribes, Stizini and Benibicini,which seem to me to form a subfamily, Bembicinae,^ may be dis-tinguished from all other members of the order by the following
3 This agrees with the arrangement proposed by Rohwer, Bull. 22, Conn. Geol. Nat. Hist.Surv. (1016), 1917, p. 601, except that it excludes the genus SpJieciiis and reduces the;;roup from family to subfamily rank.
ART. 3 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 7combination of characters : Lateral expansion of the pronotum form-ing on each side a well differentiated, rounded lobe (tubercle) whichdoes not touch the tegula; posterior metatarsus not dilated; noplumose hairs present; maxillae normal, or if elongate, then theocelli are more or less reduced or distorted; hind wing always withan anal lobe that is short and lacks an auxiliary vein; abdomensessile, with the male having seven and the female six exposed seg-ments and the last sternite of the female not turned dorsally aroundthe sting ; three closed cubital cells, of which the second receives bothrecurrent veins; basal vein removed from the stigma by two or moretimes the distance from the apex of the radial cell to the apex of the
"^ing; stigma small, not wider than the costal cell; neither epicnemianor episternal suture present ; labrum exserted and often rostriform
;
mandibles without an external notch. Although the members of thissubfamily are thus definitely distinguished from other hymenopterousforms by possessing in common the characters given above, never-theless the two tribes may be distinguished from one another bycharacters that are equally definite. These are set forth below.KEY TO THE TRIBES OF BHMBICINAE
1. Ocelli normal ; dorso-ventral length of the labrum always less than its greatestwidth ; tibia of second leg provided with two apical spurs ; submediellan cellextending beyond the junction of the mediella and cubitella veins Stizini.Ocelli distorted or completely reduced to cicatrices ; dorso-ventral length of thelabrum equal to or greater than its greatest width ; tibia of second leg pro-vided with only one spur ; submediellan cell not extending beyond the junc-tion of the mediella and cubitella veins Bemblcini.Tribe STIZINIHandlirsch in his Monographie der mit Nysson und Bembex ver-wandten Grabwespen, part 6, published in 1892, considered Bei7hbici-nus Costa and Stizoides Guerin as synonyms of Stiztis Latreille, andFox in his Proposed Classification of the Fossorial Hymenoptera ofNorth America took the same position as Handlirsch. Kohl alsoconsidered these two genera synonyms of Stizus Latreille. After acareful study, however, of all available material, which included rep-resentatives of all these genera, I am convinced that the characterson which Bemhicin'u-s and Stizoides were based are of generic impor-tance and I have accordingly given both names generic rank.Of the two tribes, the Stizini appear to be the more primitive andtherefore the less specialized group. In this tribe the ocelli arenormal and the labrum has what may be regarded as the normalform; that is, its greatest width exceeds its dorso-ventral length.The tibia of the mesothoracic leg is provided with two spurs and thesubmediellan cell extends beyond the junction of the mediella andcubitella veins.
8 PROCEEDINGS OF THE NATIONAL. MUSEUM vol. 75KEY TO THE GENBHA OF STIZINI
1. Posterior surface of propodeum concave, its posterior-lateral angles promi-nently compressed and wedge-shaped ; second cubital cell petiolate ; secondabscissa of the cubitella lacking Bembicinns.Posterior surface of propodeum flat or convex, its posterior-lateral anglesrounded; second cubital cell not petiolate (rarely subpetiolate) ; secondabscissa of both radiella and cubitella present 2.2. Inner eye-margins approximately parallel ; mandibles dentate ; second abscissaof the radiella at its origin strongly bent forward toward the costal borderof the wing; scutellum of the female usually with a small median deprcB-sion Stizus.Inner eye-margins convergent at the clypeus ; mandibles edentate ; secondabscissa of the radiella approximately straight; scutellum of the femalewithout a median depression Stizoides.Genus BEMBICINUS CostaFigures 3, 4Benibicinus Costa, Fauna del Regno di Napoli, vol. 4, 1859.
?
Patton, Bull. U. S.Geol. Surv., vol. 5, 1879, p. 345.
?
Cbesson, Synopsis, 1887, Supp. vol. Trans,Amer. Ent. Sec, p. 115.Stizus Handlibscii (part), Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol.101, 1892, p. 26.?Fox (part), Proc. Acad. Nat. Sci. Phila., 1894, p. 304.?Kohl (part), Ann, des. K. K. Naturhist. Hofmus., vol. 11, 1896, p. 421.?Dalla Toere (part). Cat. Hym., vol. 8, 1897, p. 519.Genotype.?Vespa tride'ns Fabricius, designated by Patton, 1879.Members of this genus can readily be distinguished from those ofthe other two genera of the tribe by the character of the posteriorsurface of the propodeum. This is distinctly concave and its lat-eral angles are compressed and more or less prominently wedge-shaped. In this respect members of this genus resemble those ofthe genus Bicyrtes Lepeletier, but in this latter genus the ocelli arecompletely reduced to cicatrices.Head broad as thorax; eyes strongly convergent at the clypeus;width of labrum approximately double its dorso-ventral length;posterior margin of tenth flagellar segment of the male prolongedinto a slightly curved, slender process; posterior surface of thepropodeum concave, its posterior-lateral angles compressed and moreor less wedgelike; second cubital cell usually petiolate but in somecases the first and second cubital cross veins simply join at theirunion with the radial or even join the radial separately; mediellancell subtends only one short vein, which is the second abscissa ofthe radiella; the first abscissa of the discoidella is much shorter thanthe width of the submediellan cell ; eighth sternite of the male endsin three spines.
ACM. 3 GENERfc REVISION OF THE FOSSOEIAL WASPS?PARKER 9Genus STIZUS LatreilleFigures 1. 2
Stlzu-i Latreille, Hist. Nat., vol. 3, 1802, p. 344.?IIandlirsch, Sitz. Akad.Wissensch. Wien, Math. -Nat. CI., vol. 101, 181)2, p. 26.?Fox, Proc. Acad.Nat. Sci. Phila., 1S5>5, p. 266.?Kohl, Ann. K. K. Naturhlst. Ilofmus.,vol. 11. 1896, p. 421.?Dalla Tobre, Cat. Hymn., vol. 8, 1897, p. 519.Mega^zus Patton, Bull. U. S. Geol. Surv., vol. 5, 1879, p. 344.?Cre.sson,Synopsis, 1887, Snpp. vol. Trans. Anier. Ent. Soc, pp. 115 and 278.Genotype.?Bemhex ruficomis Fabricius, designated by Latreillein 1810.'In this genus the inner eye-margins are approximately parallel,whereas in the other genera of the tribe the inner eye-margins aremore or less strongly convergent at the clypeus. The posterior-lateral angles of the propodeum are rounded and the mandibles aredentate.Head narrower than thorax; frons broad; inner eye-margins ap-proximately parallel ; width of labrum greater than its dorso-ventrallength; mandibles dentate; flagellar segments of the rnale withoutprocesses; scutellum of the female with a more or less prominentmedial depression (absent on some species) ; posterior surface ofpropodeum flat, its posterior-lateral angles rounded ; first cubital celltwice the length of the radial cell; points of union of the first andsecond cubital cross veins with the radial vein always distinctly sep-arated; mediellan cell subtending two short veins, the anterior ofwhich (second abscissa of the radiella) is strongly curved forward atits origin; first abscissa of the discoidella is long, very much longerthan the width of the submediellan cell ; eighth stemite of the maleends in three spines.STIZUS OCCIDENTALIS. new speciesFigure 29Type (male).?Black; labrum; clypeus; mandibles except tips;lower part of frons, except pair of black spots at junction of clypeus;pair of triangular spots below anterior ocellus; scape below; broadinner orbits; broad fascia on pronotum; tubercles; narrow line lead-ing down from tubercles; conspicuous spot anterior to tubercles;tegulae; narrow lateral line on scutum above tegula; conspicuousinterrupted fasciae on tergites, smallest on tergite one; fasciae onsternites 2-6 very much narrowed and interrupted medially; legs,except basal part of coxae ; yellow. There is but little black upon theabdomen, this color being almost wholly replaced by ferruginous ofvarying degrees of intensity.
10 PROCEEDINGS OP THE NATIONAL MUSEUM vol.75The first three or four segments of the flagellmn and the terra inal1 are for the most part ferruginous. The segments of the flagel-lum gradually increase in diameter from the first to the eleventh;the twelfth is conical, scarcely curved, and roundly pointed. Theradial cell is distinctly infimiated, the remainder of the wing veryslightly so, particularly in the mid-region.Allotype (female).?The allotype resembles very closely the typein the general pattern of the maculations but the yellow and ferru-ginous are much more extensively developed. With the exceptionof a pair of spots above the base of the antennae the entire frons upto the level of the anterior ocellus is yellow. The prothorax isyellow and ferruginous ; there is a yellow fascia on the scutellum andalso one on the metanotum. On the scutum there is a pair of ob-scure ferruginous discal stripes and on the metapleura a small yel-low spot and two ferruginous spots. The dorsum of the propodeumbears an obscure ferruginous curved fascia ; the antennae are lighterthan those of the type, the flagellum being ferruginous belowthroughout its length. As in the case of the type the radial cellis infumated but elsewhere the infumation of the front wing is lesspronounced than in the case of the wing of the type.The clypeus of this species is distinctly six-sided and is twice aswide as long dorso-ventrally. The frons is wider on the allotypethan on the type and the inner eye-margins on both are approxi-mately parallel. The head (except the eyes), the thorax, the pro-podeum, and the first segment of the abdomen are covered withthickly set, moderately long, white pubescence, which is better de-veloped on the allotype than on the type. The scutellum of theallotype bears an evident medial pit studded with short whitepubescence.Length 20 mm. Described from two specimens, a male from SanDiego County, Calif., collect-ed by Mr. Coquillett, and a female fromFlorence, Ariz.Type (male).?Cat. No. 40847. U.S.N.M. Allotype in the col-lection of the Academy of Natural Sciences of Philadelphia.Genus STIZOIDES GuerinFigures 5, 6Stizoides Gxjerin, Incon. du Rejrne Anim., 1844, p. 438.mizm Patton, Bull. U. S. Gecl. Surv., vol. 5, 1879, p. 346.?Ceesson, Synopsis,1887, Supp. vol. Trans. Amer. Ent. Soc, pp. 115 and 278.?Handlirsoh(part), Sitz Akad. Wissensch. Wien, Math.-Nat. 01., vol. 101, 1892, p. 26.?Fox (part). Proc. Acad. Nat. Sci. Phila.. 1895, p. 266.?Kohl (part), Ann.des K. K. Naturhist. Hofmus., vol. 11, 1896, p. 421.?Dau.a Toree (part),Cat. Hym., vol. 8, 1897, p. 519.Genotype.?Larra fasciata Fabricius {Stizus calopteryx Hand-lirsch), by present designation.
AST. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 1 1In this genus the mandibles are edentate, a character not presentin either of the other genera of the tribe. The inner eye-marginsare convergent at the clypeus and the posterior-lateral angles of thepropodeum are rounded.Head broad as thorax; inner eye-margins distinctly convergent atthe clypeus; labrum rather strongly arched, its dorso-ventral lengthabout equal to its width; mandibles edentate; posterior surface ofpropodeum flat, posterior-lateral angles rounded; radial cell shorterthan the first cubital cell, which is less than one and one-half timesas long as the radial; second cubital cell not petiolate, but the firstand second cubital cross veins may have a common point of unionwith the radial ; second abscissa of both radiella and cubitella presentand approximately parallel; first abscissa of discoidella longer thanthe width of the mediellan cell ; tenth flagellar segment of male withconspicuous process ; eighth sternite of male ending in three spines.Tribe BEMBICINIWith the exception of the genus Beiiibix^ which is world wide indistribution, members of this tribe are confined to the Western Hemi-sphere. The ocelli are either completely reduced to cicatrices or areto a greater or less degree distorted. In some species the ocelli arestill provided with more or less well-formed lenses, but whetherthese lenses are functional is a matter of conjecture. The labrum iswell developed; its dorso-ventral length always exceeds its greatestwidth, and in some species its length is several times its width at thebase. The tibia of the mesothoracic leg is provided with only a singlespur. The submediellan cell does not extend beyond the junctionof the mediella and cubitella veins.KEY TO THE GENERA OF BEMBICINI
1. Maxillae unusually long, reaching the posterior coxae when at rest and in-capable of being concealed behind the labrum ; maxillary palpus composedof three segments; labial composed of one Steniolia,Maxillae when at rest concealed behind the labrum, or if elongated neverreaching the posterior coxae; maxillary and labial palpi otherwise (inall genera except Microbembex) 2,2. Anterior ocellus (or cicatrice) placed in a pit, the borders of which are dis-tinctly elevated Stictiella.Anterior ocellus (or cicatrice) not placed in a pit 3.3. Posterior surface of propodeum (median segment) concave, its posterior-lateral angles prolonged, compressed, and wedgelike (in one species theposterior-lateral angles are rounded) Bicyrtes.Posterior surface of propodeum (median segment) flat or convex; posterior-lateral angles rounded 4.4. Mandibles edentate 5.Mandibles dentate (in some species teeth on inner margin of mandible maybe vestigial) 6.
12 PROCEEDINGS OF THE NATIONAL. MUSEUM vol. 75
5. Auterior border of radial cell confluent with anterior border of wiug ; maxil-lary palpus composed of six segments, labial of four Hemidula.Anterior border of radial cell at distal end not confluent with anterior borderof >ving ; maxillary palpus and labial palpus otherwise Mlcrobembex.6. Eyes hairy Trichostictia.Eyes naked 7.7. Maxillary palpus composed of six segments, labial composed of four 8.Maxillary palpus and labial palpus otherwise 10.8. Anterior ocellus reduced to a cicatrice, circular in form but less than a com-plete circle in extents Stictia.Anterior ocellus reduced to a cicatrice, linear in form, transverse in position,arcuate in shape Rubrica.Anterior ocellus not completely reduced to a cicatrice ; a true lens present,though more or less distorted 9.9. Nervulus postfurcal by a distance equal to or greater than its own length
;
origin of discoidella distad of the junction of the nervella and cubitella.Editha.Nervulus postfurcal by a distance less than its own length; origin of dis-coidella at the junction of the nervella and cubitella Selman.10. Anterior ocellus not completely reduced to a cicatrice ; maxillary palpus com-posed of five segments, labial composed of three Therapon.Anterior ocellus completely reduced to a transverse, linear cicatrice; maxil-lary and labial palpi not composed of five and three segments, respectively.Bembiz.THERAPON, new genusFigures 19, 20Monedtila Handlibsch and Authors (part).Genotype.?Stictia chilensis Eschscholz.The species on which the genus Therapon is based differs from allother species formerly included in the genus Monedula in that themaxillary palpus is composed of five segments and the labial ofthree. No other species in the entire subfamily have the palpi thusdeveloped. In many respects Therapon cJiilen^is resembles species ofthe genus Trichostictia : it has the maculations of the abdomen of thesame color and the same general pattern; the pubescence of thethorax is similar ; the ocelli are provided with lenses ; and the spineson the middle coxae and the spatha of the genitalia of the male arealso quite similar. It differs from the species of that genus, how-ever, not only in the character of the maxillary and labial palpi, butalso in the fact that the eyes of chilensis are not hairy and the clypeusis not produced upward between the antennae.Head somewhat narrower than the thorax; eyes naked; vertexlower than the level of the top of the eyes ; inner eye-margins slightlydivergent at the clypeus ; anterior ocellus with lens present, ellipticalin form, transversely placed, and situated on a slight elevation ; cly-peus moderately arched, median apical area very little flattened.
ABT. 5 GENERIC EEVISION OF THE FOSSORIAL WASPS PARKER 13
carinate on median line at base but not markedly depressed on eitherside the midline at base; mandibles dentate; proboscis long, notwholly concealed when folded behind the labrum; maxillary palpuscomposed of five segments, labial of three ; propodeum narrower thanthe thorax, its posterior-lateral angles narrowed and reduced ; middlecoxa of male provided with a relatively long, curved tooth; middlefemur of male below at apical end provided with stout, flat tooth;second and sixth sternites of male plain ; eighth sternite of male endsin short, stout, curved spine; seventh tergite of male unusually broad,bearing short, stout, lateral spines, the medial portion deeply androundly emarginate; spatha of male genitalia as in Figure 77; vena-tion of wings similar to that found in the genus Stictia.THERAPON CHILENSIS (Eschscholz)Figures 19, 20, 76-79
Stictia chitensis Eschscholz, Xaturw. Abh. Dorpat., vol. 1, 1823 (Entomojn'aph.1822), p. 150.Monedula d'OrMgnii Bubmeister, Bol. Acad. Nac. Cordova, vol. 1, 1874, p. 116.MorieduUi clvilen?is Handltbsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. <'I.,vol. 99, 1890, p. 132.?Dalla Torbe, Cat. Hym., vol. 8, 1897, p. 497.I have examined five males and three females of this species, ofwhich Handlirsch in his monograph has given an excellent detaileddescription. The middle tibia of the male has the anterior apicalborder drawn out into a short spinelike process such as sometimes isfound on species of Beiribix. Three specimens from Chile, one femaleand two males, of which one is unusually small, have the dorsum ofthe thorax and propodeum, except for very small spots above the baseof the wings, wholly black and the maculations on the sides of thethorax and propodeum greatly reduced or lacking. The remainingspecimens, two males and two females from Argentina and one malefrom Chile, all have conspicuous lateral spots on the scutellum andwell developed maculations on the sides of the thorax and propodeum..The pubescence on the thorax* and propodeum is long, dense, andwhite but on the abdomen it is almost lacking. The seventh tergiteof the male in this species is relatively broader than in any otherspecies known at present. The lateral spines of this tergite are shortand stout and the apex of the median part is strongly and roundlyemarginate. SPECIMKNS ES.\MINF.DAegentina: Bahia Blanca.Chile: Santiago (1923, Father C. Jo.?:eph) ; (E. C. Reed).The species has been reported also from Peru, Patagonia, and LaPlata.
14 PROCEEDINGS OF THE NATIONAL MUSEUM TOL. 75TRICHOSTICTIA, new genusFigures 11, 12Monedula Handlibscii and Autuobs (part).Genotype.?Monedula vulpiria Handlirsch.Wasps belonging to this genus have the eyes hairy. Of all thewasps formerly included in the genus Monedula none save thoseassigned to this genus possess this character. In addition to thisthey are also distinguished by the shape of the dorsal border of theclypeus, which on the medial line is produced upward to a pointabove tlie level of the lower border of the insertion of the antennae(fig. 11).Head scarcely as wide as the thorax; vertex at midline slightlybelow the level of the top of the eyes ; eyes hairy, their inner marginsstraight but divergent at the clypeus ; anterior ocellus with lens pres-ent, in form somewhat elliptical, transversely placed, and situatedon a distinct, rounded elevation; mandibles dentate; clypeus moder-ately arched, carinate on midline dorsally, median ventral areaslightly flattened, and dorsal margin at midline produced upwardbetween the antennae to a point above the level of the lower marginof their insertion ; maxillary palpus composed of six segments, labialof four; propodeum narrower than the thorax, its posterior lateralangles less prominent than in allied genera; middle coxa of malewith prominent, posterior, curved tooth; second and sixth sternitesof male plain ; eighth sternite of male ends in a single, curved spine
;
seventh tergite of male bears lateral spines and the apex of themedian part is rounded, not emarginate ; spatha of male genitalia asin Figure 70. KEY TO SPECIES OV TEICHOSTICTIA
1. Males (visible segments in abdomen 7; antenna composed of 13 segments) 2.Females (visible segments in abdomen 6; antenna composed of 12segments) 4.2. Scape above wholly ferruginous; discal spots on tergites 4r-6 usually (notalways) united on midline guttata.Scape black above ; discal spots on tergites 4-6 always separated on mid-line 3.3. Black on flagellum present to a greater or less degree on all segments ; pubes-cence on thorax and propodeum white vulpina.Black on flagellum limited to apical half; pubescence on thorax and propo-deum decidedly brownish brunneri.4. Scape above wholly ferruginous ; scutellum bearing a complete fascia-guttata.Scape black above ; scutellum bearing only lateral spots 5.5. Black on flagellum present in greater or less degree on all segments ; pu-bescence on dorsum of propodeum white vulpina.Black on flagellum limited to apical half: pubescence on dorsum of pro-podeum long and decidedly brown brunneri.
AKT.5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 15TRICHOSTICTIA GUTTATA (Taschcnberg)Figure 70Monedul<i guttata Taschenbeeo, Zeitschr, f. d. ges. Naturw., vol. 36, 1870, p. 23.Monedula (Eemidula) guttata Bitrmeister, Bol. Ac:xfl. Nac. Cordova, vol. 1,1874, p. 120.Monedula guttata Handursch, Sitz. Akad. wis-seusch. Wlen, Math.-Nat. CI.,vol. 99, 1890, p. 136.?Daula Toree, Cat. Hym., vol. 8, 1897, p. 498.I have examined four specimens of this species, two males and twofemales, all from Argentina, South America. Two of these, a maleand a female, determined by Kohl, agree quite closely with Hand-lirsch's description of the species. Of the other two specimens thatI have referred to this species, the male has the fascia on the scutel-lum interrupted at the midline and also has the discal spots ontergites 4 and 5 separated from one another as well as from thelateral spots on these same tergites. On the female the discal spotson tergite 4 are separated as on the male. On both male and femalethe maculations on the sternites consist of rather widely separatedlateral spots and the sixth sternite of the female is wholly black.SPECIMENS EXAMINEDArgentina: Mendoza (H. Rolle, Berlin W. Det Kohl).Handlirsch reports this species also from Montevideo, Uruguay.TRICHOSTICTIA VIJLPINA (Handlirsch)Figures 11, 12, 69Monedula vulpina Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI.,vol. 99, 1890, p. 138.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 501.Of this species I examined two males and two females, all fromChile. The species resembles the preceding but is not quite so slenderand the maculations on the thorax are less extensive. The macula-tions on the sternites are almost pure white and the pubescence onthe propodeum is long, dense, and white, characters that serve todistinguish this species from the other two belonging to the genus.SPECIMENS EXAMINEDChile: Santiago (December, 1922, A. Faz) ; Southern part (M. J. Rivera).Handlirsch reports this species also from Peru.TRICHOSTICTIA BRUNNERI, new speciesType (male).?Black: labrum; mandibles, except tips; clypeus,except small pair of discal spots and narrow border on baso-lateralmargins; spot between antennae; scape and first two segments offlagellum below; narrow vertical stripe below anterior ocellus;broad anterior orbits deflected inward above anterior ocellus;
16 PROCEEDINGS OF THE NATIONAL MUSEUM TOL. 75posterior orbits, broad below, narrow above; posterior border ofpronotum extended around posterior border of tubercle; spot onside of prothorax ; short lateral line above base of wings on scutum
;
narrow transverse, rectangular, lateral spots on scutellum; narrowinterrupted fascia on posterior border of metanotum; small spot onside of propodeum ; spot on metapleura ; spot on mesopleura ; lateraland discal spots completely separated on tergite one; discal spotsseparated from one another but united to lateral spots on tergites2-5 ; four distinct spots on tergite 6 ; apical part of tergite 7 ; fasciaeon sternites 2-5 broad laterally and almost interrupted by a deepanterior, median efnargination ; fascia on sternite 6 broad in themiddle but narrowed laterally; femora in part; tibiae and tarsiwholly; yellow. The color of the maculations on the abdomen,labrum, clypeus, and scape is a very pale creamy yellow, while thaton the thorax and legs is a much richer shade of yellow.The basal half of the flagellum is ferruginous and none of thesegments shows any special modifications. The apical part of themiddle femur is dentate below. The median part of the sevenfhtergite is narrow and rounded at the apex while the lateral spinesare short, rounded, and sharply pointed.Allotype (female).?The allotype, with respect to the macula-tions, so closely resembles the type that a separate description isunnecessary. It differs from the type, however, in not having blackdiscal spots on the clypeus; in having the black baso-lateral bordersmuch reduced; in having the sides of the thorax and propodeumsomewhat more extensively maculated; in having a pair of yellowspots on the posterior surface of the propodeum; in having thediscal and lateral spots separated from one another on all thetergites except the fourth ; and in having the coxae maculated. Thesixth sternite has its apical portion wholly yellow.The wings of this species are almost hyaline. The pubescence onthorax and propodeum is unusualh' dense, relatively long, and ofa decidedly browmish color. There is some variation among theparatypes. On none of them do we find a pair of black spots onthe clypeus. On one male the lateral and discal spots are separateon tergites 1-3, and on two of the females the lateral and discalspots are separate on all the tergites. The baso-lateral black borderon the clypeus varies in extent but is never lacking. The extentof the maculations on the side of the thorax and propodeum varieson the different individuals.This species is very closely related to vulpina (Handlirsch). fromwhich it can be readily distinguished (1) by the maculations of theabdomen, which are practically white in vulpina and are creamyyellow in hrimneH; (2) by the pubescence on the propodeum. whichis decidedly white in vulpina and decidedly brownish in hrunneri^
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PACKER 17and (3) by the color of the basal half of the flagellum, which inboth sexes of vvlpina is predominantly black while in hrunne?^ it iswholly or predominantly ferruginous.Length 18-20 mm. Described from three males and five females.The males, including the type, and one of the females bear the simplelabel " Peru." Four of the females, including the allotype, bearthe label "Arequipa, Peru, October 30, '98.''Type.?Male, Cat. No. 40848, U.S.N.M.EDITHA, new genusFigures 25, 26Monedula Handlirsch and Authors (part).Genotype.?Monedid^ magni-flca Perty.This genus is very closely allied to the genus Sticfia, from whichit differs, however, in having the ocelli provided with well-formedlenses, in having the middle of the vertex not depressed but on alevel with the top of the eye, in having the inner margins of theeyes strongly divergent at the clypeus, in having the temples broad,and in having the nervulus vein distinctly postfureal.Head narrower than thorax; eyes naked; ocelli provided withlenses; anterior ocellus circular in form but scarcely more than asemicircle in extent ; inner eye margins strongly divergent at clypeus
;
vertex not depressed, middle part on a level with the top of the eyesfrons below anterior ocellus and dorsal part of clypeus distinctlycarinate on median line; clypeus on either side the median carinasomewhat depressed, ventral area more or less flattened; maxillarypalpus composed of six segments, labial of four; nervulus joins thediscoideus distinctly distad of the origin of the basal vein; middlecoxa of male with short tooth; prominent groove and stout toothon posterior, apical border of middle femur of male ; seventh tergiteof male with short, stout, lateral spines, and with median part short,broad, and truncate; eighth sternite of male ends in a single stout,curved spine; second and sixth sternites of male may or may notshow distinct modifications or processes.KEY TO SPECIES OF EDITHA
1. Males (abdomen with 7 visible segments; antenna with 13) 2.Females (abdomen with 6 visible segments; antenna with 12) 4.2. Sixth sternite provided with a transverse row of spines 3.Sixth sternite devoid of spines magnifica.3. Maculations on tergites consisting of fasciae on first and second tergites.adonis.Maculations on tergites consisting of lateral spots on tergites l-4__fTiscipennis.22764?29 2
|g PROCEEDINGS OF THE NATIOISrAL MUSEUM vol.75
4. ataculations on tergites only lateral spots fuscipennis.Maculations on turgites consisting of fasciae 5.5. Fasciae limited to first and second tergites 6.Fasciae present on tergites 2-5 pulcherrima.6. Large, length 35 mm. or more ; ventral and dorsal areas of clypeus separatedby a well-defined transverse ridge magniflca.Smaller, length 25 mm. ; ventral and dorsal areas of clypeus ill defined
;
transverse ridge almost lacking adonis.EDITHA MAGNIFICA (Perty)Figures 25, 26, 75Monedula ina'jnifica VEmr, Delectus Animal, Art. 144, pi. 28. fig. 3, 1834.?Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 99, 1890,p. 122.?Dai.la Torbh, Cat. Hyin., vol. 8. 1897, p. 498.This handsome wasp, measuring from 35 to 45 mm. in length, isthe largest species known among the bembicids. Its color is intensevelvety black, with yellow markings on the head, broad yellow fasciaeon first and second tergites, and yellow lateral spots on the secondsternite. The temples in this species are very broad and yellow incolor. SPECIMENS EXAMINEDBrazil: Chapada (March).EDITHA ADONIS (Handlirsch)Monedula adonis Handliksch. Sitz. Akad. Wis-sensch. Wien, Math.-Nat. CI., vol.99, 1890, p. 130 ; vol. 104. 1895, p. 969.?Daixa Toere, Cat. Hym., vol. 8, 1897,p. 496.Monedula stridulans Strand, Zool. Jahrb. Abt. Syst. Geoi. and Biol., p. 147.A careful study of Strand's description of M. str'idulmis and acomparison of this description with Handlirsch's description of M.adonis convinces me that the two descriptions deal with one and thesame species. In color this species so closely resembles magnifica thatit appears to be only a smaller form of that species. The male ofthis species, however, differs from the male of magniflca in having thesixth sternite provided with a row of spines closely applied to theventral surface of the sternite. The female is distinguished from thefemale of magnifca by its smaller size and by the lack of a transverseridge .separating the dorsal and ventral areas of the clypeus.SPECIMENS EXAMINEDBrazil: Chapada (March).Paraguay: A.suncion, Villa Morra (January 7, 1906, J. D. Auisits, Det. Strand).Handlir.sch reports this species also from Ipanema. Brazil.
!
jBT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS?PARKER 19EDITHA FUSCIFENNIS (Lepeletier)Monedula fuscipenrm Lespexettier, Hist. Nat. Ins. Hym., vol. 3, 1845. p. 286.
?
Handliesch. Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 99, 1890. p.128,?Daixa Torre, Cat. Hym., vol. 8, 1897, p. 497.I have before me two males that were received by the United StatesNational Museum in an exchange and were determined by Kohl asmales of this species.Handlirsch, in his discussion of this species, writes that he hadonly females before him and that Lepeletier and Dahlbom likewiseexamined only females. A comparison of these two males withHandlirsch's description of the species convinces me that Kohl'sdetermination is correct. In this species the temples and the divivsionof the clypeus into dorsal and ventral areas are by no means sojirominent as in the case of magniflca. The middle femur at theapical end below bears the characteristic groove and tooth. Thesecond sternite is plain and the sixth bears a transverse row of spinesimilar to those on the male of adonis. Segments 6-12 of the flagellabelow are somewhat excavated or modified ; 6 bears an evident spinebelow; 8 and 9 each bears a smaller spine; and 9, 10, and 11 each atthe apical end below bears on the anterior border a number of spine-like hairs. The spine on the eighth sternite of the male is distinctlyspear-shaped. The wings are heavily and uniformly infumated.Of the two specimens one is without a locality label and the otherbears the label " Brasilia, Esperito Santo."Handlirsch reports the species from Ipanema and San Paola,Brazil.
^ EDITHA PULCHEERIMA, new speciesT^/pe (female).?Black: labrum; clypeus, except fine line at base;base of mandibles ; lower part of frons ; broad anterior orbits ; scapebelow; posterior orbits, narrowed above; large lateral spot on pro-thorax; broad fascia on pronotum, including the tubercles; pair ofdiscal lines on scutum ; spot on tegula ; scutellum ; metanotum ; broadfascia on dorsum of propodeum narrowly interrupted on median line
;
lateral angles of propodeum broadly; small spot on metapleura; broadvertical line and small spot on mesopleura ; first tergite, except a pairof longitudinal elliptical discal marks and a median anterior notchbetween them; broad fasciae on tergites 2-5 bisinuate on anteriormargin, those on 2 and 3 each narrowed at the midline by a V-shapednotch; pair of triangular spots on sixth tergite; lateral spots on:^ternites 2-4; spot on anterior coxa; femora in part; tibiae, exceptposterior surfaces ; anterior border of anterior tarsus ; anterior borderof middle tarsus to a less degree ; apical segment of posterior tarsusin part; yello\D.Length about 27 mm.
20 PROCEEDINGS OF THE NATIONAL, MUSEUM vol.75The flagellum is black, with the tip of the apical segment reddish,the segments increasing in diameter outward to the tenth, thenceslightly decreasing to the apex. The wings are hyaline. Thepubescence is short and inconspicuous. The apical tergite bears amedian carina and is closely and finely punctate, the punctures be-coming coarser toward the apex, where a slight tendency to rugositybecomes evident. The sixth sternite is finely punctulate with widelyseparated coarser punctures scattered over the surface.Described from a single female from Santa Isabel, Rio Negro,Uruguay, collected by J. D. Haseman.T'y^^.?Female, in the Carnegie Museum, Pittsburgh, Pa.SELMAN, new genusFigures 17, 18Genotype.?Selman angmtus. new species.The characters that distinguish this genus from the genus Stictia^to which it is closely related, are the following: ocelli functional (atleast not reduced to cicatrices) ; middle of vertex elevated instead ofbeing depressed; body slender instead of stout and robust.Head wide as thorax ; eyes naked ; ocelli provided with true lenses(not reduced to cicatrices) ; anterior ocellus circular in shape, butonly slightly greater than a semicircle in extent ; middle of vertex ona level with the top of the eyes; inner eye-margins parallel; slightbut evident carina on lower part of frons and base of clypeus;middle part of the clypeus to near the base slightly flattened ; maxil-lary palpus composed of six segments, labial of four; wings narrowand relatively short, about double the width of the thorax ; venationof wings similar to that in the genus Stietia: body slender; malegeneric characters, if any. unknown.SELMAN ANGUSTUS. new speciesFigures 17, 18Type (female),?Black: clypeus, except pair of transverse basalspots; labrum; mandibles, except tips; lower part of frons; scape;basal segments of flagellum below; broad anterior orbits shortenedabove ; narrow posterior orbits broad below ; tubercles continuouswith broad spot on sides of prothorax and with broad fascia on pos-terior border of pronotum ; lateral lines and pair of large, longitudi-nal, pear-shaped spots on scutum ; fascia on anterior border of scutel-lum; narrow fascia on metanotum; arcuate fascia on propodeumextended in a pair of points on its posterior surface; posterior lat-eral angles and sides of propodeum; metapleura and mesopleuraalmost wholly; fasciae on tergites 1-5 interrupted at dorsal midline
I
AKT. 5 GENERIC REVISION OF THE FOSSORL\L WASPS?PARKER 21and broader laterally than at midline ; fascia on tergite 1 very broadlaterally; continuous fascia on sixth tergite broad at midline andnarrow laterally ; continuous fasciae on sternites 2-5, broad laterallyand narrow medially ; legs, except line above on all femora and tibiaeand spot below on all trochanters and proximal ends of all femora
;
yellow.The flagellum, except the first and second segments, is more or lessreddish below ; above it is darker suffused with reddish basally. Thedistal end of the apical segment is distinctly reddish. The flagel-lum of the paratype shows but little of this reddish color except onthe apical segment. The wings are hyaline, narrow, and relativelyshort. The pubescence is sparse and short, in fact, almost lacking.The discal marks on the scutum and the lower part of the maculationof the mesopleura show a tendency to the reddish color seen on theflagellum. The male of the species is unknown.Length, 18 mm. Described from two specimens (including thetype) from Chapada, Brazil.Type and paratype.?In the Carnegie Museum in Pittsburgh, Pa.Genus STICTIA lUigerFigures 23, 24Vespa Linnaeus, Systema Naturae, ed. 10, vol. 1, 1758, p. 574 (part).Bemhyx FABRicros, Syst. Eiit., 1775, p. 361.Benibex Fabeicius, Mant. Ins., vol. 1, 1787, p. 285.
?
Dahlbom, Hym. Eur., vol. 1,1845, p. 486.Monedula Latreiixb, Hist. Nat. Ins., vol. 3, 1802, p. 343.
?
Dahlbom, Hym. Eur..vol. 1, 1845, p. 492.?BuKMEiSTER, Bol. Acad. Cordova, vol. 1, 1873, p. 110.?Handliksch, Sitz. Akad. Wi.ssensch. \Vieu. Math.-Nat. CI., vol. 99, 1890, p.77.?Kohl, Ann. des K. K. Naturhist, Hofnius., vol. 11, 1896, p. 439.?DallaTorre, Cat. Hym., vol. 8, 1897, p. 496.Stictia Illiger, Fauna Etrusca (Rossi), ed. 2, vol. 2, 1807, p. 131.?Fox. lint.News, 1901, p. 269.?Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 15.Genotype.?Stiotia signata Linnaeus, designated by Parker in1917.Wasps belonging to this genus have the ocelli completely obliter-ated. The anterior cicatrice is circular in form but less than a com-plete circle in extent and is not placed in a pit or upon a distinctprominence or elevation. The middle of the vertex is depressed, isdistinctly lower than the level of the top of the eyes, whose innermargins are somewhat divergent at the clypeus. The male has at theapical end of the posterior border of the middle femur a distinctnotch and stout tooth. The sixth sternite of the male bears a con-spicuous median area and the seventh tergite bears lateral spines andits median part is emarginate at the apex.
22 PROCEEDINGS OF THE NATIONAL, MUSEUM vol. 75Head almost as wide as thorax; eyes large, their inner marginsslightly divergent at clypeus and the facets near the inner bordersomewhat larger than those near the outer border; ocelli reducedcompletely to cicatrices, flat, not placed in a pit or on an elevation,circular in form but only slightly great<?r than a semicircle in extent;mandibles dentate ; maxillary palpus composed of six segments, labialof four: clypeus but moderately arched and not distinctly dividedinto a dorsal and ventral area by a transverse ridge, a short carinaat dorsal midline continuous with median carina of frons; medianpart of vertex depressed, distinctly below the level of the top of theeyes ; lateral angles of propodeum somewhat prominent but rounded,not wedge shaped; seventh tergite of male with prominent lateralspines, the median part emarginate at apex; sixth sternite of malewith median area slightly raised and grandular in appearance ; eighthsternite of male terminating in a stout curved spine ; spatha of malegenitalia as in Figure 72; venation of wings as in Figure 24.KEY TO SPECIES OF STICTIA
1. Males (abdomen with 7 visible segments, antenna composed of 13 seg-ments) 2.Females (abdomen composed of 6 visible segments, antenna composed of12 segments) 16.2. Maculations on tergites confined to lateral spots 3.Maculation on tergites in the form of fasciae, either more or less widelyinterrupted or broken into lateral and discal spots, or some broken intospots and others simply interrupted 6.3. Scutellum, metauotum, and dorsum of propodeum with broad, conspicuousfasciae : remainder of thorax and propodeum entirely black trifasciata.Thorax and propodeum not as above 4.4. Lateral spine on seventh tergite truncate and its apical surface concave.heros.Lateral spine on seventh tergite not as above 5.5. Metauotum with narrow fascia continuous or interrupted ; anterior meta-tarsus bearing eight spines medea.Metauotum black ; anterior metatarsus bearing seven spines antiopa.6. Maculation of first tergite consisting of two fasciae united laterally and in-terrupted medially, thus forming a pair of U-shaped marks; no fasciaebroken into lateral and discal spots signata.Maculation of first tergite other^vise: or if as above, then on one or moretergites tlie fascia is broken into lateral and discal spots 7.7. Fasciae on tergites not broken into lateral and discal spots. (Rarely fasciaon third tergite may be broken, in which case the fasciae on the ster-nites are continuous) 8.Fasciae on some tergites or on all broken into lateral and discal spots__-9.8. Scutum without discal lines; fasciae on sternites 2-5 continuous?decorata.Scutum with prominent pair of discal lines; sternites 2-5 with only lateral
.spots dives.9. Fasciae on first and second tergites prominent; fascia on third brokenInto four spots ; tergites 4 and 5 black or with small lateral spots ; thoraxand propodeum black Carolina.Combination of maculations as given above not present 10.
AET. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PABKEB 23
10. Scutum with prominent puir of discal niarlis 11-Scutum without discal marks 14.11. Side of thorax and propodeum sparingly maculated: tarsi almost whollyblack 1^Side of thorax and propodeum profusely maculated ; tarsi (except in somecases apical segment in part) yellow 1^5.12. Posterior apical angle of lateral spine on seventh tergite rounded; fasciaon second tergite not broken into four spots mexicana.Posterior apical angle of lateral spine on seventh tergite pointed ; fascia onsecond tergite broken into four spots pantherina.13. Lateral spine of seventh tergite almost squarely truncate, not pointed atapex; anterior metatarsus with seven spines sombrana.Lateral spine of seventh tergite very obliquely truncate, pointed ^at apex;anterior metatarsus with six spines maculata.14. Fasciae on scutellum and metanotum continuous or broken 15.Scutellum and metanotum not maculated (rarely small lateral spots onscutellum) punctata.15. Fasciae on tergites 1-4 broken into discal and lateral spots lineata.Fasciae on tergites 2 and 4 not broken into lateral and discal spots.mexicana.16. Maculations on tergites consisting of broad continuous fasciae infracta.Masculations on tergites not continuous fasciae 17.17. Masculations on tergites consisting of only widely separated lateral spots_18.Masculations on tergites consisting of fasciae, either simply interrupted orsome or all broken into lateral and discal spots 20.IS. Fasciae on metanotum and propodeum, continuous or interrupted?medea.,Metanotum and propodeum without fasciae '. 19.19. Maculations on tergites creamy white ; scutellum with fine and coarse punc-
. tures intermingled; wings lightly infumated heros.Maculations on tergites yellowish ; scutellum uniformly and finely punc-tured with some coarse punctures scattered about : wings rather heavily
' infumated antiopa.20. Scutum without discal marks 21.Scutum with discal marks 27.21. All fasciae on tergites 1-4 broken into lateral and discal spots 22.Not all fasciae on tergites 1-4 broken into lateral and discal spots 23.22. Fasciae on .scutellum and metanotum lineata.Fasciae absent on scutellum and metanotum punctata.23. Scutellum and metanotum each with fascia, continuous or interrupted?24.Scutellum with only very small, round lateral spots ; metanotum immaculate.Carolina.24. Fasciae on tergites 1-3 broken into lateral and discal spots ; evident toothon tenth segment of flagellura mexicana.
[ Not all fasciae on tergites 1-3 broken into lateral and di.scal spots : notooth on flagellum 25.25. Tubercles maculated ; broad curved fascia on dorsum of propodeum 26.Tubercles black ; fascia on propodeum lacking carbonaria.26. Me.sopleura, metapleura, and side of propodeum without maculations.arcuata.Mesopleura, metapleura, and side of propodeum with prominent maculations.proserplna.27. First tergite with U-shaped lateral marks; no fascia on tergites broken intolateral and discal spots; apex of sixth tergite maculated signata.Combination of maculations as given above not present 28.
24 PROCEEDINGS OF THE NATIONAL MUSEUM vol.7528. Fasciae on tergites simply interrupted (rarely broken on third tergite intolateral and discal spots) : 29.Some or all of the fasciae on tergites broken into lateral and discal spots__30.29. Sixth tergite with evident median carina extending the length of the ter-gite ; posterior tibiae black with silvery pubescence; labrum yellow.vivida.Median carina on sixth tergite reduced or wanting ; posterior tibiae markedwith yellow ; labrum with median black stripe _ dives.30. Posterior tarsi almost wholly yellow : mesopleura wholly yellow 31.Posterior tarsi almost wholly black; mesopleura not wholly yellow, onlymaculated pantherina.31. Scutellum lacking pubescence, very finely punctured with a few scatteredlarger punctures ; labrum yellow ; discal stripes on scutum narrow_andrei.Scutellum pubescent (at least at sides), uniformly and rather coarselypunctate ; labrum with black central stripe ; discal stripes on scutumbroad maculata.STICTIA TRIFASCIATA, new speciesFigure 72Type (male).?Black: longitudinal lateral stripes on labrum;apical line on clypeus joined to a median vertical line to base ofsame; pair of minute spots between antennae; narrow line on scapebelow; narrow anterior orbits; very narrow posterior orbits; broadfascia with short sharp prolongation at its posterior middle on scu-tellum; fascia on metanotum; broad curved fascia on propodeum;conspicuous, widely separated lateral spots on tergites 1-5, decreasingin size from one to five ; minute lateral spots on sternite three ; narrowstripe on anterior Ijorder of tibia and tarsus of first pair of legs;small spot at distal end of femora of middle and posterior legs;yeUov}, The flagellum is black and segments 6, 10, 11, and 12 bearprominent pits below, the excavation on 6 being best developed.Segments 7 to 9 bear shallow pits and are somewhat rounded outbelow.This species, which in Handlirsch's key runs to Monedula heros, isremarkable for the presence of the three yellow bands on the thoraxand propodeum. These are unusually well developed; yet, asidefrom these, the thorax and propodeum are entirely black. The spotson the tergites are vvell developed but are widely separated and theventral surface is wholly black except for the small pair of spotson the third sternite. The wings are slightly infumated, due to thefact that the veins are bordered by a slightly infumated area,particularly evident on the anterior pair.Length 26 mm. Described from a single mule from Sapucy, Para-guay, South America.Type (male).?Cat. Xo. 40849, U.S.N.M.
^AET. 5 GENERIC EEVISION OF THE FOSSOBIAL WASPS?PARKER 25STICTIA HEROS (Fabricius)Bemhex hcros Fabricius, Syst. Piez , 1804, p. 222.Monedula lieros Handlirsch, Sitz. Wissensch. Wien, Math.-Nat. CI., vol. 99,1890, p. 108.?Dalla Torre, Cat. Hym., vol. 8, 1891, p. 498./Stictia heros and tiie two species immediately following, viedeaand antiopa, are distinguished by having only widely separatedlateral spots on the tergites and relatively few or no maculations onthe thorax and propodeum. The maculations on the tergites ofheros are a pale creamy color, almost white, whereas those on medeaand antiopa are decidedly yellowish and the wings of heios are lessheavily infumated than are those of the other two species. I have athand 2 males and 11 females of this species, of which one femalebearing the label, " Panama " has been determined by Handlirsch.
.SFKCI.MENS EXAMINEDEcuador: Posorja.Panama: Ancon, Canal Zone (L. H. Dunn) ; Old Panama (May 15, 1909, A. H.Jennings; Jan. 31, 1911, A. Busck).Handlirsch reports this species from Montevideo, and also fromRio Grande do Sul and Santa Catherina. Brazil.STICTIA MEDEA (Handlirsch)Monedula medea Handi.iksch, Sitz. Akad. Wissensch. Wien. Math.-Nat. CI., vol.99, 1890, p. 109.?Daixa Torre, Cat. Hym., vol. 8, 1891, p. 498.I have before me from Brazil four females that I have referred tothis species. All bear fasciae on the metanotum; on three the curvedfascia on the propodeum is continuous, on the fourth interrupted;on one the fascia on the scutellum is continuous, on a second it is nar-rowly interrupted, and on the other two it is reduced to lateral spots.On all four the maculations are a bright light yellow.I have before me also a male from Surinam determined by Kohlas belonging to this species. Handlirsch did not have a male at handwhen he described the species, and if Kohl has published a descrip-tion of the male, I have not seen it. The maculations on the tergitesof this specimen are more yellowish than in the case of the males ofheros, but the difference is not so great as in the case of the femalesof the two species. The sixth segment of the flagellum and also thethree apical segments are deeply excavated, much more so than istrue of heros. Furthermore, the apical surface of the lateral spineon the seventh tergite of heros \% distinctly excavated, whereas inthe case of medea the lateral spine is bluntly rounded at the apex.SPECIMENS EXAMINEDBrazil: Amazonas, Rio Branco (Nov.. 1903, P. Kibler S. Rolle V.) ; Souza,Para (Sept. 16, 1920, Cornell U. Exped.).Surinam.
26 PROCEEDIXGS OF THE NATIONAL MUSEUM vol. 75STICTIA ANTIOPA (Handlirsch)Monedula antiojya Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI.,
- vol. 99. 1890, p. 109.?Dalla Tobbe, Cat. Hym., vol. 8, 1891, p. 496.Handlir.sch described this species from a single female and dis-tinguished tlie species from heros because of the finer puncturing ofthe scutum and heavier infumation of the wings of this species, andfrom wedea through the lack of yellow fasciae on the scutellimi.metanotum, and propodeum. I have at hand a female, determinedby Kohl, that bears the characters given by Handlirsch. I have alsoanother female (labeled ''Surinam"), which I have referred to thisspecies and which bears a pair of lateral spots on the scutellum. asmall pair on the metanotum, and small spots on the posterior lateralangles of the propodeum. The wings are more heavily infumatedthan those of medea.Oi a male that I have determined as belonging to this species, Isubmit the following description: Black: lateral borders of labrum;ventro-lateral borders and median vertical stripe on clypeus; scapebelow: vestiges of anterior and posterior orbits; very small lateralspots on scutellum; very small lateral spots on dorsum of propodeum;small spots on lateral angles of propodeum ; lateral spots on tergites1-5 ; lateral spots on sternites 2-4 ; anterior lines on anterior femoraand tibiae ; posterior apical spot on middle and posterior femora
:
yellow.The wings are more heavily infumated than in the case of herosor medea. The lateral spines of the seventh tergite are more nearlyperfectly truncate than are those of viedea and are not hollowed outat the apex as are those of heros.SPECIMENS EXAMINEDSurinam: (Fruhstorfer).VENEzuBaA: Maturin (1898?female, det Kohl),STICTIA SIGNATA (Linnaeus)Figure 23V-mpa mt/nata Linnaeus, Syst. Nat., ed. 10, vol. 1, 1758, p. 574.Moneduld signatn Handlibsch, Sitz. Akad. Wisseu.sch. Wien, Math.-Nat. CI.,vol. f>9, 1890, p. S6.?Dalla Torre, Cat. Hym., vol. 8, 1891, p. 49?.?Handlirsch. Sitz. Akad. Wissensch. Wien. Math.-Nat. CI., vol. 104. 1895,p. 966.Stictia sUjnata Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 18.This species is one of the most common and most widely distributedof the genus, having been reported from localities scattered through-out South America, Central America, Mexico, and the West Indies.I have examined more than one hundred specimens of this species,which may be distinguished from all other species of the genus by
p
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 27the fact that the first tergite bears a pair of U-shaped maculationswhose open ends are approximated and by the fact that the fasciaeon the remaining tergites, though interrupted at mid line, are neverbroken into discal or lateral spots.SPBCIMHNS BXAMINEOBahamas: Andreas Island (J. J. Northrop).Bolivia: Herachi Beni (Septeml>er, W. M. Mann) ; Rurrenabaque, Beni (Octobir,W. M. Mann).Brazil: Ceara-Mirim (W. M. Mann): Flores (November 15, 1919, Parish);Itacoatira (November 22, 1919, Parish) ; Manaos (Mann, Baker) ; MattoGrosso; Obido.s (August 10, 1919, Parish) ; Para (Mrs. H. B. Merrill).Beitish Guiana (April 9, 1901, R. J. Crew).Costa Rica: San Carlos (Sckleld and Burgdorf).Cuba: Baracoa (Augu.^^t. 1901, A. Busck) ; Cabanas (May 18. Palmer andRiley).Ecuador (C. T. Baker).Florida.Guatemala: Los Amates f February 7, 1905).Honduras: La Ceiba (April 8, 1916, F. J. Dyer).Mexico: Coazacoalcos (December, 1898, C. C. Deam) ; Rosario, Sinaloa (B. P.Clark) ; Santa Lucretia, Vera Cruz (F. Knab).Panama: Alhajuelo (April 10, 1911, A. Busck) ; Taboga Island (February16. 1912, A. Busck) ; Tabernilhi (A. Busck) ; Old Panama (January 31,1911, A. Busck).Paraguay: Sapucay (April 8, 190:^. W. T. Foster).PEasu: Lima (December 21. 1912, C. H. T. Townsend).San Salvador: Coekburntowu (P. Bartsch).Surinam.VENEzuEa^: Rio Moto, Cuara District (October 9, M. A. Carricker).STICTIA DECORATA (Bnrmeister)Monedula punotata var. decorara TAscHENBEaiG, Zeitschr. f. d. ger. Nat, 1870,p. 22.Monedula decorata Burmhister, Bol. Acad. Cordoba, vol. 1, 1874, p. 144.
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Hand-LiRscH, Sitz. Akad. Wissensch. Wien, Math.-Nat. GL, vol. 99, 1890, p. 105.?Dalla Torre, Cat. Hym., vol. 8, 1891, p. 497.
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Handlirsch, Sitz. Akad.Wissensch. Wien, Math.-Nat. CI., vol 104, 1895, p. 968.I have at hand a single male of this handsome species determinedby Kohl. The clypeus and labrum are wholly yellow ; the yellow onthe scutum is confined to short, narrow lateral lines above the baseof the wings; the fasciae on tergites 1-5 are well developed and arenarrowly interrupted at midline; tergite 6 bears small lateral spots:stemites 2-5 bear broad fasciae narrowed at midline; sternite 6bears small lateral spots. Segment 6 of the flagellum is only moder-ately excavated below and at the apex bears below a single short butdistinct spine. The lateral spines of the seventh tergite can not besaid to be truncate, but at the end they are sloping and terminate ina blunt, rounded point.
28 PROCEEDINGS OF THE NATIONAL MUSEUM vol.73SPECIMENS EXAMINEDArgentina: Mendoza (December 14, 1906, H. Rolle Berlin W.).Handlirsch reports this species also from Philipi, Chile.STICTIA DIVES (Handlirsch)Monedula dives Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol.99, 1890, p. 106.?Dali.a Torkb, Cat Hym., vol. 8, 1891, p. 497.I have before me a single male specimen that I have referred tothis species. Unfortunately it bears no locality label. It has a pairof small medial black spots on the clypeiis and a short median blackstripe at the apex of the labrum. In other respects the coloration ofthis specimen fits very accurately the description of the male of thespecies given by Handlirsch. The excavation on the sixth segment ofthe flagellum is a little more prominent than in the case of decorata,and, as in the case of that species, this segment bears a distinct spineon the distal margin below. The lateral spines on the seventh tergiteare distinctly and almost squarely truncate.Handlirsch described the species from specimens from Mexico.STICTIA CAROLINA (Fabricius)Figure 24Bembex Carolina Fabricius, Ent. Syst., vol. 2, 1793, p. 249.Stictia Carolina Illiger, Mag. f. Ins., vol. 6, 1807, p. 195.Mo-nedula Carolina LEPEa^ETiEiR, Hist. Nat. Hym., vol. 3, 184-5, p. 281.
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Hand-lirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 99, 1890, p. 110.?Dalla Torre, Cat. Hym., vol. 8, 1891. p. 497.With the exception of a single specimen of Stictia signata taken inCalifornia (D. W. Coquillett). this large and handsome species is theonly one of the genus to occur within the bounds of the UnitedStates, and, so far as I am aware, it has not been found without them,although it is highly probable that it will be found in Mexico. Itslarge size, black thorax sparsely maculated or not at all, and thebroad, bright, creamy maculations of the abdomen render this specieseasy of identification. SPECIMENS EXAMINEDAlabama: Booth (June 15, 1924, E. S. Holt) ; Montgomery (T. J. Key).Florida: Apalachicola (July, 1909, J. C. Bradley) ; Fernandina (W. H. Finn) ;Jacksonville (Ashmead) ; Palm (C. F. Baker).Georgia: Egypt (W. H. Finn).Louisiana: Houma (August 6, 1911, B. C. Wurzlow) ; Lee Post OflSce (June29, 1896, D. W. Eavens).Maryland: Chesapeake Beach (July 26, 1912, William Palmer).Oklahoma: Ardmore (June 26, C. R. Jones).
ABT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 29Texas: Cabnesneil (June 20, 1907, W, W. Yothers) ; Dallas (June 6, 1910,E. G. Blasi) ; Jacksonville (June 28, 1906, F. C. Bishopp) ; Kerrville(July 19, 1907, F. C. Pratt) ; Rosser (July 6, 1905, F. C. Bishopp) ; Vic-toria (May 30, 1911, J. D. Mitchell).In addition to the localities listed above, the species has beenreported from Illinois, Kansas, New Jersey, New Mexico, andPennsylvania. STICTIA MEXICANA (Handlirsch)
? Figure 74Monedula mexicmia Handlirsch, Sitz. Akad. Wisseusch. Wien, Math.-Nat.CI., vol. 99, 1890, p. 107.?Dalla Toere, Cat. Hym., vol. 8, 1891, p. 498.Of the five males that I have referred to this species, four haveconspicuous discal lines, and lateral lines above the base of the wings,on the scutum, but the fifth lacks the discal lines and the laterallines are much reduced. On this same fifth specimen the fasciaboth on the scutellum*and on the metanotum is interrupted and thefascia on the propodeum is almost obsolete while the maculationson the mesopleura and metapleura are wholly wanting and thoseon the lateral angles of the propodeum are reduced to small spots.On all five the fascia on the third tergite is broken into lateral anddiscal spots and on three of the five the fascia on the first tergite islikewise broken into lateral and discal spots.Handlirsch described the species from two males from Mexico.A female bearing the label, " Cuernavaca, 9, '23, Moi Mex., E. G.Smyth," I regard as the female of this species. Its description isas follows: Black?lateral borders of labrum; mandibles in part;very narrow lateral spots on ventral border of clypeus; short anteriororbits; very narrow posterior orbits; posterior border of pronotum,almost obsolete ; posterior border of tubercle ; lateral spots on scutumabove base of wings; narrow and widely interrupted fascia onscutellum; narrow, interrupted fascia on metanotum; fasciae ontergites 1-3 broken into lateral and discal spots; fasciae on tergites4 and 5 widely interrupted; lateral spots on sternit^s 2-4; narrowline on anterior border of anterior tibia and tarsus and on anteriorborder of middle tibia ; yellow.The scutellum is closely and evenly punctured throughout butnowhere are the punctures of uniform size; the size and the numberof coarse punctures are greater, however, in the central area than onany of the four margins. The eleventh segment of the antenna atthe middle on its posterior border bears a short rounded tooth, acharacter that I should consider an abnormality did it not occur onboth antennae. Tlie infumation of the wings is somewhat heavier
30 PROCEEDINGS OF THE N^ATIONAL MUSEUM vol. 75than in the case of the male, particularly along the margins ofthe veins.Mexico: Atencingo (Juue 1 and 2, 1922, E. G. Smyth) ; Cuernavaca (September,1923, E. G. Smyth).STICTIA PANTHERINA (Handlirsch)Muncdula punctata var. Lepbletiek, Hisv. Nat. Ins. Hym., vol. 3, 1845, p. 28.'}.Moncdula pantherhm Handijrsch, Sitz. Akad. Wissensch. Wien, Math.-Nat.CI., vol. 99, 1890, p. 95.?Dall.\ Tobre, Cat. Hym.. vol. 8. 1891, p. 498.I have at hand live females that I have referred to this species,which is closely related to mactilata and like 7twcul<ifa has the discalspots on tergites 1-4 always separate from the lateral spots. Thefollowing characters serve to distinguish this species from 7naculata:the discal lines on the scutum of this species are usually very muchnarrower than those on niaculata; the maculations on the sides ofthe thorax and propodeum of pantherina are much reduced, whereason maculata these parts are wholly or almost wholly yellow; thetarsi, particulavly the hind tarsi on pantherirui are almost whollyblack, whereas the tarsi, particularly the hind tarsi on macul<itaare predominantly or wholly yellow.SPECIMENS EXAMINEDFrench Guian.v : Cayenne (February. March. 1917).Venezuela: Pedernales (Jianuary 25, 1911, S. Browne t.Handlirsch reports this species from Colombia and Brazil.STICTIA SOMBRANA, new speciesTyfe (male).?Black : clypeus, except pair of broad stripes extend-ing from base almost to apex ; labrum ; spot between antennae ; scapebelow; anterior orbits shortened above: posterior orbits narrowedabove; prothorax, except band extending from one tubercle to theother ; pair of narrow discal lines and short line above base of wingson scutum; narrow interrupted fascia on anterior margin of scutel-lum; narrow fascia on metanotum; lateral lines on propodeum; pos-terior-lateral angles and large spot on sides of propodeum; meta-pleura; mcsopleura; mesosternum except pair of round spots; pair ofsmall discal and large lateral spots on tergites 1-4 ; large lateral spotson tergite 5; apex of seventh tergite: lateral spots on sternites 2-5,those on second sternite being very large; legs except black lines onfemora and tibiae; yellow. The color of the labrum, clypeus andthe maculations on the tergites is very light creamy yellow; that ofthe legs and thorax, orange yellow.
IABT.5 GENERIC REVISION OF THE FOSSORIAL WASPS?PARKER 31This species seems close to Sttctia mexicama Handlirsch and. likethat species, has the hind metatarsus unusually long, in this speciesnearly as long as the hind tibia. The apical segment on the anteriorand middle tarsi (posterior missing) is marked with a black spot.The sixth segment of the flagellum is excavated on its posterior sur-face and is slightly spinose as is also the seventh and ninth. Thetenth, eleventh, and twelfth segments are also excavated below. Thelateral spines of the seventh tergite are almost squarely truncate.The wings are hyaline. The punctation of the scutellum is relativelyfine and uniform; that of the scutum is similar to that of the scut?llumsave that very fine punctures are scattered among the coarser ones.Length about 25 mm. Described from a single male (the type)taken by J. Chester Bradlej' and bearing the label, " La Sombra toEl Encapto, Putumayo Dist., Peru, Aug. 23, '20.""Type.?In the collection of Cornell LTniversity.STICTIA MACULATA (Fabricios)Bembex maculata Fabricius, S.\st. Piez., 1804, p. 222.Monedula maculata Handlirsch. Sitz. Akad. Wissensch. Wien. Math.-Nat. 01.,vol. 99. 1890, p. 02.?Daixa Torre. Cut. Hym.. vol. S. 1891, p. 498.This species is characterized by having broad longitudinal discalstripes on the scutum; fasciae on scutellum, metanotum and pro-podeum; the sides of the thorax and propodeum wholly yellow ornearly so, and on some specimens the greater part of the venter ofthe mesothorax also yellow ; the discal spots on tergit^s 1-4 separatedfrom the lateral spots; and the tarsi preponderantly or entirelyyellow. On some specimens the maculations on the first tergiteresemble those found on Stict'ia signata but in all cases observed theU-shaped marks were more or less broken. On some specimens oneor both of the discal spots on the second t?rgite may be united withthe corresponding lateral spot, but on no specimen studied did I findsuch a union on the fourth tergite?here the discal spots are alwaysdistinct. The sixth tergite of the female is invariable black andthe form of the lateral spines of the seventh tergite of the male issimilar to that of signata. SPECIMENS EXAMINEDBritish Guiana: Essequibo (William Schaus).Costa Rica: Carillo, San Carlos (Schild and Burgdorf).Mexico: (C. F. Baker).Panama: Alhajuelo (A. Busck) ; Cobima (May 24, 1911, A. Bnsck) ; Piir^ta dePensa (July 22, 1908, R. E. B. McKenney).Peru: El Campaniento (June 28, 1920, Perene).
32 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75STICTIA PUNCTATA (Fabricius)Bembyx punctata P'abricius, Ent. Syst., 1775, p. 361.Monedula punctata Handlibsch, Sitz. Akad. Wisseuscli. Wien, Math.-Nat. CI.,vol. 99, 1890, p. 97.
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Dau^a Tobre, Cat. Hyiu., vol. 8, 1891, p. 499.
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Hani>LiBSCH, Sitz. Akad. Wissensch. Wien, Math.-Nat. CL, vol. 104, 1895, p. 967.This species once seen can scarcely be mistaken for any other ofthe known species of Stictia. The thorax and propodeum are black,sometimes wholly black, but usually with very small lateral spots onthe scutellum, on the sides of the mesothorax, and on the posteriorlateral angle of the propodeum. Sometimes there are traces of yel-low on the prothorax. The paired discal spots on tergites 1?4 aresmall, widely separated from one another and widely separated fromthe small lateral spots on the same segments. The legs are black,with traces of yellow or ferruginous, especially on the front pair.I have at hand one male and eight females of this species.SPECIMENS EXAMINEDBRAzn, : Guaraja, Sao Paulo (December 2, 1916, Cornell U. Exped.) ; Pernam-buco (December 28, 1882) ; Sao Paulo (Hammar).STICTIA LINEATA (Fabricius)Bembex lineata Fabbicius, Ent. Syst., vol. 2, 1793, p. 250.Bembex punctata Outvek, Enc. Meth., vol. 4. 1798, p. 290. (Misidentlfication).Monedula punctata BuRMHasTEB. Bol. Acad. Cordoba, vol. 1, 1874, p. 111.Monedula lineata Handlirsch, Stiz. Akad, Wissensch. Wien, Math.-Nat. CI.,vol. 99, 1890, p. 100.?Dalla Tobbe, Cat. Hym., vol. S, 1891, p. 498.This species most closely resembles Stictia punctata, from which itmay be distinguished by the presence of fasciae on the scutellum andthe metanotum and usually also on the propodeum. I have at handone male and four females that I have referred to this species. Themale has the fasciae on the scutellum and metanotum very narrow,and the fascia on the propodeum is reduced to a pair of small lateralspots. The posterior lateral angles of the propodeum bear yellowspots. There are small lateral spots on the scutum above the base ofthe wings, a small spot on the mesopleura below the wings, and afascia on the pronotum that does not reach the tubercles, which arewholly black. The maculations on the abdomen are characteristic ofthe species. The apex of the lateral spine of the seventh tergite isobliquely truncate and its posterior angle is bluntly pointed. Themale is large and robust, as is also one of the females. Two of thefemales are much smaller than the others and they have the scapewholly black. One of these two has the clypeus black and the yellowon the labrum reduced to small lateral spots ; the other one has the
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 33yellow on the clypeus reduced to mere traces at the extreme ventro-lateral borders and the yellow on the labrum reduced to lateral lines.The yellow on the prothorax is reduced to spots on the tubercles.The fasciae on scutellum, metanotum, and propodeum are well de-veloped, as are the maculations on the abdomen. There are alsosmall spots on the sides of the thorax and propodeum. The legs arepredominantly black, but on three of the four females the apicalsegment of the tarsi is largely or wholly yellow, whereas on thefourth female and on the male this yellow is reduced to a spot or iswanting. specimena examinedArgentina.Brazil: Chapada (March 10); Sao Paiiio (Hammar) ; Guaraja, S. Paulo(December 2, 1919, Cornell U. Exped.).Fabricius reports the species from Cayenne.STICTIA INFRACTA, new speciesType (female).?Black: labrum; mandibles, except tips; clypeus,except a small pair of black spots; lower part of frons extended onmedian line above antennae; scape below; anterior orbits; posteriororbits broad below; narrow posterior border of pronotum; tuberclesand sides of prothorax almost entirely; narrow lateral lines on scu-tum ; narrow fascia of scutellum ; fascia on metanotum ; narrow fasciaon propodeum extending downward in a V-shaped prolongation onthe posterior surface and inclosing a triangular black spot ; posterior-lateral angles and sides of propodeum almost wholly ; metapleura andmesopleura, except black lines at the sutures; mesosternum, except apair of black spots in front of middle coxae ; broad continuous fasciaeon tergites 1-5, slightly emarginate at anterior middle and producedforward slightly on either side the emargination on all except thefirst, and produced forward laterally on all ; pair of median spots onanterior surface of tergite 1 ; interrupted fascia on tergite 6 producedforAvard laterally as on preceding; sternites 1-3 entirely; i, exceptanterior median spot; 5, except median and pair of lateral blackspots ; pair of small lateral spots at apex of sixth ; legs entirely, exceptblack lines above on all femora and tibiae ; yelloio. Flagellum blackabove, tawny below. Wings hyaline.In form this species is relatively slender and resembles more closelymembers of the genus Benibix than it does the robust forms of Stic-tia. If it were not for the form of the anterior ocellus and the char-acter of the mouth parts, it would readily pass for a Bemhix. Thecolor of the dorsal markings and the clypeus is a pale greenish orcreamy yellow, while that of the labrum, the ventral markings, and22764?29 3
34 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75the legs is more nearly orange. The pubescence is white, very short,and sparse. The swelling at the base of the second sternite is lessevident than is usual in this genus. The sixth tergite is coarselypunctate with a slight tendency to become rugose at the apex. Itbears a slight but evident median carina and along the lateral bordersare numerous coarse, stiff hairs. The sixth sternite is also slightlycarinate on the median line and is covered with uniform shallowpunctures, among which, toward the apex, are numerous coarserones.Length, 19 mm. Described from a single female taken at Piura,Peru, by Townsend, April 28, 1911.Tyye (female).?Cat. No. 40850, U.S.N.M.STICTIA CARBONARIA (Burmeister)Moiiedula carhonaria Bubmeisteb, Bol. Acad. Nac. Cordova, vol. 1, 1874, p.113.
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Handlersch, Sitz. Akad. Wissensch. Wien, Matli.-Nat. CI., vol. 99,1890, p. 102.?Daula Tokkb, Cat. Hym., vol. 8, 1891, p. 497.I have at hand two females of this species determined by Hand-lirsch. On one specimen the sides of the thorax are entirely black,except for a very narrow line on the border of the prothorax belowthe tubercles. On the other specimen these same lines below thetubercles are present and also a minute spot below the wings on themesothorax. On this latter specimen there is a trace of color on theposterior border of the pronotum, but on both specimens the tuberclesare black as is likewise the scutum.SPECIMENS EXAMINEDBrazil: Ihering, Rio Grande (Det. Handlirsch).Handlirsch reports this species from Parana and Montevideo, andcites Burmeister as reporting it from Corrientes and Rio Quaia-quiraro. STICTIA ARCUATA (Burmeister)Moncdula punctata var. arcuata Taschenberg, Zeitschr. f. d. g. Nat., vol. 2,1870, p. 22.Monedula arcuata Burmeister, Bol. Acad. Cordova, vol. 1, 1874, p. 112.
?
Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 99, 1890,p. 104.?DALI.A Torre, Cat. Hym., vol. 8, 1897, p. 496.I have before me two females of this species determined by Hand-lirsch. The prothorax, exclusive of the broad fascia on the prono-tum including the tubercles, is entirely black. The scutum, the meso-pleura, the metapleura, and the side of the propodeum, exclusive ofthe posterior lateral angles, are also black. The scutellum on itsanterior border bears a broad fascia narrowly interrupted at themidline. The metanotum is almost wholly yellow and there is abroad curved fascia on the propodeum and its posterior lateral angles
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS?PARKER 35
are yellow. The fascia on the third tergite is broken into lateral anddiscal spots. SPECIMENS EXAMINEDBrazil: Ihering, Rio Gi'ande (Det. Handlirsch).Handlirsch reports this species also from Montevideo and citesBurmeister as reporting it from Uruguay and from Mercedes, Argen-tina. STICTIA VIVIDA (Handlirsch)Monedula viv-ida Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol.99, 1890, p. 101.?Dalla Torre, Cat. Hym., vol. 8, 1891, p. 501.I have at hand seven females from Mexico that I have referred tothis species. The labrum is wholly yellow and the clypeus also,except for a large basal mark that is almost divided into two by awide median yellow stripe. The scutum bears a pair of lateral yellowlines and a pair of long, narrow, rufous discal lines. There is a con-spicuous fascia on the anterior border of the scutellum narrowedmedially and partially or wholly interrupted at the median line. Themetanotum is almost wholly yellow and the broad, curved fascia onthe propodeum covers much of the posterior surface. There is afascia on the posterior border of the pronotum that includes thetubercles. There are large maculations on the sides of the mesothoraxand metathorax and the sides of the propodeudi are almost entirelyyellow. The fasciae on the tergites are unusually well developed, re-sembling both in size and color those of decorata. They are inter-rupted at midline, the posterior ones somewhat more widely thanthe anterior ones, but in no case is any fascia broken into discal andlateral spots. Three of the seven specimens have the sixth tergitewith a pair of small yellow spots. This tergite is closely punctured,the punctures near the apex being coarser than those toward the base,and practically all the punctures subtend stiff spinelike hairs whichare very conspicuous along the lateral borders of the tergite. Thistergite bears a distinct median carina as does also the sixth sternite.The legs, which are covered with a fine silvery pubescence, are blackwith some reduced yellow markings. The wings are hyaline. It isa large, brightly-colored, handsome species.SPECIMENS EXAMINEDMkxico: Alta Mira, Tampa (June 30, 1903).STICTIA PROSERPINA (Handlirsch)Monedula proserpina Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI.,vol. 99, 1890, p. 99.?Dalla Torre, Cat. Hym., vol. 8, 1891, p. 499.I have at hand a single specimen, a female from Bolivia. It agreesquite closely with Handlirsch 's description of the species. The macu-
36 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75lations on the clypeus are reduced to a short median stripe and apair of small lateral spots. The widely interrupted fasciae on thelergites are broad laterally but are very narrow medially. The thirdis broken into lateral and discal marks.SPECIMENS EXAMINEDBolivia: Rio Colorado (September, M. R. Lopez).Handlirsch described the species from specimens taken at or nearNauta, Peru. STICTIA ANDREI (Handlirsch)Monedula owdrei Handlirsch, Sitz. Akatl. Wisseusch. Wieu. Math.-Nat. CI.,vol. 99, 1890, p. 94.?Dalla Torre, Cat. Hym., vol. 8, 1891, p. 496.I have at hand two females of this species determined by Hand-lirsch, of which one bears the label " E. Peru" and the other
'? Nauta." The characteristics of this species, as set forth by Hand-lirsch, are well shown by these two specimens. All the specimens, 3males and 21 females, on which Handlirsch based his description ofthe species, were from Peru. jGenus STICTIELLA Parker VFigures 13, 14, 32
Stictiella Pabkee, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 21.Genotype.?Monedulu foiniosa Cresson, designated by Parker in1917.This genus may be distinguished from all nearly related genera,except Steniolia, by the fact that the ocelli are placed in pits or de-pressions. From StenioUa it may readily be distinguished by thecharacter of the maxillae, which in StenioUa are exceedingly long,reaching the hind coxae, and can not be folded behind the labrumwhen at rest, whereas in Stictiella the maxillae are of normal devel-opment. Available records indicate that this genus is confined toNorth America.Head usually as wide as the thorax, in some species narrower;eyes naked, their inner margins approximately parallel or slightlydivergent at the vertex; ocelli placed in pits or depressions, theirlenses not completely obliterated, but much distorted ; anterior ocelluswith a distinct elevation round about it; middle of vertex not de-pressed beloAv level of top of eyes; clypeus only slightly arched, nodorsal median carina present and no flattened ventral area ; mandiblesdentate; maxillary palpus composed of six segments, labial of four;posterior apical border of middle femur of male lacking groove andstout tooth, such as is present in the genus Stictia; seventh tergite of
.L
ABT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS?P.ARKER 37
male without lateral spines; eighth sternite of male terminating inthree spines and in some species provided with an additional discalspine; venation of wings as in Figure 14; spatha of male genitaliaas in Figure 32. KEY TO THE SPECIES OF STICTIELLA
1. Males (antenna with 13 segments; abdomen with 7 visible segments) 2.Females (antenna with 12 segments ; abdomen with 6 visible segments) _20.2. Middle metatarsus more or less strongly curved ; inner curved surface fre-quently beset with spines 3.Middle metatarsus not curved 13.3. Second sternite nontuberculate 4.Second sternite unituberculate 8.Second sternite bituberculate 9.4. Middle femora smoot beneath pictifrons.Middle femora serrate or dentate beneath 5.5. Pulvilli large and distinct ; apical segment of all tarsi black ; anterior tarsidilated and flattened forinosa.Pulvilli indistinct ; tarsi normal 6.6. Scutum with discal marks ; abdominal fasciae all continuous melanosterna.Scutum without discal marks ; no continuous fasciae on sternites 7.7. Wings hyaline; lateral spots on sternites lacking or confined to sternites2 and 3 plana.Wings distinctly infumated ; lateral spots on sternites not confined to stern-ites 2 and 3 serrata.8. Apical segment of anterior tarsus broadly dilated and black : process onsecond sternite blunt and strongly hirsute distally tuberculata.Apical segment of anterior tarsus normal form and yellow ; process on sec-ond sternite pointed and smooth distally callista.9. Middle femora smooth below ; head narrower than thorax 10.Middle femora serrate or dentate below ; head normal 11.10. Width of second cubital cell on radial and cubital veins about equal ; secondsternite almost wholly yellow bituberculata.Width of the second cubital cell on the radial vein about half its wiijth onthe cubital ; second sternite mostly black emarginata.11. Pulvilli indistinct; apical segment of tarsi normal pulchella.Pulvilli distinct ; apical segment of tarsi black ; anterior pair dilated 12.12. Large and stout, 18-20 mm. ; fasciae on tergites broad and, except first,continuous ; second inclosing pair of black discal spots ; fasciae on stern-ites continuous or narrowly interrupted speciosa.Slender, about 15 mm., fasciae on tergites interrupted on 1 or 1-3, leavingon one or more of these tergites a pair of yellow discal spots ; yellow onsternites in form of lateral spots spinifera.13. Head, thorax, base of abdomen and basal joints of legs covered with long,dense, white pubescence ; most specimens, but not all, have the secondsternite bituberculate scitula.Pubescence of head, thorax, etc., of normal character 14.14. Second sternite nontuberculate , tenuicornis.Second sternite unituberculate 15.Second sternite bituberculate 16.15. Tubercle of second sternite ending in a single point megacera.Tubercle of second sternite ending in two points bifurcata.
38 PROCEEDIISrGS OF THE NATIONAL MUSEUM vol.75
16. Middle femora of normal form, not emarginate 17.Middle femora more or less strongly emargiuate posteriorly 19.17. Scutum with a pair of discal marks esigua.Scutum without discal marks 18.18. Clypeus with black more or less extensive on dorsal border puUa.Clypeus wholly pale and silvery argentata.19. Scape black above; mesosternum marked with black; genital stipes as inFigure 33 femorata.Scape entirely yellow; mesosternum yellow; genital stipes as in Fig-ure 34 divergens.20. Pulvilli distinct 21.Pulvilli indistinct 35.21. Scutum without discal markings 22.Scutum with discal marks more or less well developed 2-5.22. Head narrower than thorax; width of second cubital cell on radial veinabout half its width on cubital emarginata.Head normal, wide as thorax ; second cubital cell normal 23.23. Anterior and middle femora entirely yellow argentata.Anterior or middle femora or both marked with black 24.24. Spots on scutellum rectangular ; spots on either side of anterior ocellus.pulla.Spots on scutellum triangular ; V-shaped spot enclosing anterior ocellus.megacera,25. Di.-cal marks on scutum, consisting of a pair of irregular spots, or of pairof lines not broken, not curved inward or approximated posteriorly __26.Discal marks on scutum in form of a U, either broken, interrupted medially,or broken into lines and spots 28.26. Scutellum with pair of large triangular lateral spots pulla.Scutellum with a continuous fascia, rarely interrupted on the mediauline 27.27. Fasciae on tergites yellov? ; that on first tergite deeply emarginate on an-terior border at midline or entirely cut through, leaving a posterior me-dian discal spot , pictifrons.Fasciae on tergites pale; that on first tergite not deeply emarginate onanterior border argentata.28. Second sternite more or less black; not entirely yellow 29.Second sternite entirely yellow 31.29 Species small, 10-12 mm.; discal marks on scutum narrow and broken:fasciae on tergites rather narrow, wavy, scarcely to be considered emar-ginate
, femorata.Species larger, 16-20 mm. ; discal marks on scutum two broad lines curvedand approximated posteriorly; fasciae on tergites broad and emarginatedanteriorly 30.30. Tergites without posterior black border; posterior tarsi, save basal joint,dusky above speciosa.Tergites with a posterior black border; posterior tarsi yellov,' formosa.31. Species large, 15-20 mm 32.Species small, 10 mm 84.32. Clypeus with pair of basal black spots 'oifareata.Clypeus entirely yellow 33.33. Scape yellow; black spot on mesosternum near middle coxa tenuicornis.
AKT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 39Scape with black spot above; mesosternum yellow bituberculata.34. Fascia on first tergite inclosing a medial black spot basally ; bead, thorax,and base of abdomen covered sparsely with long, white pubescence, mostevident on the lateral angle of the propodeum scitula.Fascia on first tergite without medial black spot ; pubescence not as above
;
face and sides of thorax more or less silvery exigua.35. Scutum without discal markings 36.Scutum with discal markings 37.36. Mesopleura immaculate ; fascia on first tergite interrupted widely serrata.Mesopleura with large yellow spot ; fasciae on all tergites continuous.pulchella.37. Discal marks on scutum small ; mesopleura black, rarely with small macu-lations ; venter of abdomen almost entirely black 3S.Discal marks on scutum conspicuous ; mesopleura yellow ; venter of abdo-men almost entirely yellow 39.38. Wings infumated ; fascia on first tergite widely interrupted and yellow.serrata.Wings hyaline; fascia on first tergite narrowly interrupted and white.plana.39. Species large. 18-20 mm. ; no black on mesosternum callista.Species smaller, 12-14 mm. ; black .spot, variable in size, in front andslightly above middle coxa melanosterna.STICTIELLA PICTIFRONS (Smith)Monedula pictifrons Smith, Cat. Hym. Brit. Mus., vol. 4, 1856, p. 335.Monedula inermis Handlibsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI.,vol, 99, 1890, p. 144.Monedula denverensis Cameron, Trans. Amer. Eut. Soc, vol. 34, 1908, p. 235.Stictiella pictifrons Paekee, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 25.The female of this species, in color and color pattern, so closelyresembles Steniolia duplicate Provancher that it is very frequentlymistaken for that species and I have frequently found specimens solabeled. The maculations on the dorsal side of the thorax and abdo-men of the male are much lighter than on the female ; in fact, they arealmost white. The male is characterized by having on the third andfourth segments of the anterior tarsus well developed posterior apicalprocesses that are invariably black.SPECIMENS EXAMINEDColorado: Livermore (July 8, 1900) ; Boulder (September 8, 1908, S. A. Roh-wer) ; Denver (August 24, 1908, C. Bennett).Georgia: Marietta (June 7, 1909).New Mexico : Las Vegas, Hot Springs.Pennsylvania: Carlisle Junction (July 1, 1909, P. R. Myers).Texas: Kerrville (June 19, 1907, F. C. Pratt).This species has also been reported from Virginia, North Carolina,Kansas, Arizona, and California.
40 PROCEEDINGS OF THE NATIONAX, MUSEUM vol. 75STICTIELLA FORMOSA (Cresson)Figure 32Monedula formosa Cresson, Trans. Amer. Ent. Soc, vol. 4, 1872, p. 221.Monedula speciosa Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI.,vol. 99, 1890, p. 140.Stictiella formosa Parkek, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 27.The males of this species can be readily distinguished by the char-acter of the apical segment of the anterior tarsus. This is black,greatly dilated and flattened, its claws are greatly modified and,strange to say, the two claws are not alike. The claws on the middleand posterior tarsi are of normal form.SPECIMENS EXAMINEDOklahoma: Bennington (August 28, 1907, F. C. Bishopp).Texas: Paris (August 11, 1904, C. R. Jones) ; Sabinal (June 13, 1910, F. C.Pratt).This species has also been reported from Kansas. It has also beenreported from Guaymas, Sonora, Mexico, by C. L. Fox.STICTIELLA MELANOSTERNA ParkerStictiella tnelanosterna Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 30.The type and allotype of this species (in United States NationalMuseum) were taken at Las Cruces, N. Mex. It has been reportedalso from Arizona and Utah.STICTIELLA PLANA (Fox)Monedula plana Fox, Proc. Acad. Nat. Sci. Phila., 1895, p. 367.Monedula usitata Fox, Proc. Acad. Nat. Sci. Phila., 1895, p. 371.Siictiella plana Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 32.This sj)ecies is not represented in the collection of the UnitedStates National Museum. In his description of his species usitataFox associated as sexes of one species male and female that in myjudgment belong to different species. The evidence on which I basedmy conclusions was presented in my previous paper. The male ofFox's usitata I regard as the male of Handlirsch's pulla and thefemales of usitata 1 have associated with the male of Fox's plana assexes of the same species.STICTIELLA SERRATA (Handlirsch)Monedula scrrata Handlirsch, Sitz. Akad. Wissensch. Wien. Math.-Nat. CI.,vol. 99, 1890, p. 143.?Dalla Torre, Cat. Hym., vol. 8. 1891, p. 499.Siictiella serrata Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 31.
*
SPECIMENS EXAMINEDFlorida : Biscayne Bay.Georgia : Tipton ( May 18, 1896 )
.
ART. 5 GENERIC REVISIOISr OF THE FOSSORIAL WASPS?PARKER 41North Carolina: Southern Pines (June 5, 1909, A. H. Manee) ; "White Lake.Bladen County (March, 1909, F. Sherman).This species has also been reported from Wisconsin.STICTIELLA TUBERCULATA (Fox)Monedula tuberculqta Fox, Proe. Acad. Nat. Sci. Phila.. 189."j, p. 360.Stictiella tulerciilata Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 34.Fox's type, which is in the collection of the Academy of NaturalSciences of Philadelphia, is from Nevada. A specimen of thisspecies, which I have examined, was taken b}' Mr. C. L. Fox atLewiston, Idaho. STICTIELLA CALLISTA ParkerStictiella callista Parkbjr, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 34.The type and allotype of this species (both in the United StatesNational Museum) were taken at Mesilla Park, N. Mex., by Cockerell,the former on June 9, 1898, and the latter on July 21.STICTIELLA BITUBERCULATA ParkerMonedula tenuicornis Fox, Proc. Acad. Nat. Sci. Phila.. 1895, p. 369, male(not female).Stictiella bituierculata PARKsai, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 36.The male of this species is characterized by its narrow head, itscurved middle metatarsus destitute of spines on the curved surface,the bituberculate second sternite, and the paired discal spots, almostwhite, on the tergites. The female resembles the female of fenui-cornis^ from which it may be distinguished by the characters set forthin the accompanying key. Furthermore, the abdomen of the femaleof tenuicornis is more slender and the tendency of the fasciae onthe tergites is to inclose black discal spots, whereas on hltuhercndatathe tendency of the fasciae on the tergites is to break up into lateraland discal yellow spots. SPECIMENS examinedCalifornia: San Bernardino County (Coquillet) ; Los Gastos Canyon, MountDiablo Range (June 2, 1907, J. C. Bradley).This species has been reported from Arizona and New Mexico.Type.?In the United States National Museum.STICTIELLA EMARGINATA (Cresson)Monedula emarginata Cbesson, Proc. Ent. Soc. Phila., vol. 4, 1865, p. 468.Monedula mamillata Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI.,vol. 99, 1890, p. 146.In this species the head is narrower than the thorax, more evidentin the male than in the female, and the second cubital cell is greatlv
42 PROCEEDINGS OP THE NATIONAL MUSEUM VOL.75 ,narrowed on the radial vein. The second sternite of the male isbituberculate, the tubercles being widely separated. The specimenfrom Pennsylvania (male) and also the specimen from Giant Forest,Calif., have the maciilations yellow instead of white, which is thecolor in the case of all other specimens of this species that I havese^n. SPECIMENS EXAMINEDCalifobnia: Giant Forest (C. L. Fox).Colorado: Custer County (T. D. A. Cockerell) ; West Cliff.Oregon: Mount Hood (C. L. Fox).Pennsylvania: Carlisle Junction (May 24, 1910, W. S. Fisher).AVyoming: Snalie River (August 18, 1917, W. B. Sheppard).STICTIELLA PULCHELLA (Cresson)Monedula pulchella Cresson, Proc. Ent. Soc. Phila., vol. 4, 1865, p. 471.Monedula ininutula Handliksch, Sitz. Akad. Wisseusch. Wien. Matli.-Nat. ('1.,vol. 99, 1890, p. 148.?Daxla Torre, Cat. Hym., vol. 8, 1891, p. 498.Stictiella pulchella Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 40.This species was described by Cresson from two females and onemale taken in Colorado. All the material at hand was taken inCalifornia as indicated below.SPECIMENS EXAMINEDCalifornia: Los Angeles County (Coquillet) ; Los Gastos Canyon, MountDiablo Range, Fresno County (June 2, 1907, J. C. Bradley).STICTIELLA SPECIOSA (Cresson)Monedula speciosa Cresson, Proc. Ent. Soc. Phila., vol. 4, 1865, p. 470.tMonedula speciosa Patton, Bull. U. S. Geol. Surv., vol. 5, 1879, p. 361.Stictiella speciosa Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 41.There are in the collection of the United States National Museumthree female specimens of this handsome species. The maculationsof the thorax and abdomen are almost white. The legs are yellowwith the apical tarsal segments of the middle and posterior legsdecidedly dusky or black. On one specimen this is true for the apicalsegment of the anterior tarsi.SPECIMENS EXAMINEDCanada: Medicine Hat, Assiniboia (August 20, 1916, Sladen).Colorado: Sterling (August 8, 1904, Johnson).Nebraska: West Point (J. C. Crawford).This species has been reported also from Kansas and New Mexico.Cresson's type (a female) in the collection of the EntomologicalSociety of Philadelphia is from Colorado.
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS?PARKER 43STICTIELLA SPINIFERA (Mickel)IMonedula speciosa Patton, Bull. U. S. Geol. Surv., vol. 5, 1879, p. 361.Monedula speciosa H. S. Smith, Univ. Neb. Studies, vol. 8, 1908, p. 383 (part).Monedula spinifera Mickel, Trans. Amer. Ent. Soc, vol. 42, 1916, p. 418.Stictiella melampous Parkek, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 43.This species stands very close to speciosa, from which it differs inthe character of the second cubital cell and in the pattern of itsinaculations, SPECIMENS EXAMINEDKansas: Seward County (August, 1911, F. X. Williams).Mickel reports the species from McCook and Glen, Nebr.STICTIELLA SCITULA (Fox)Figure 14Monedula 7}iamiUata Fox (not Handlirsch), Proc. Calif. Acad. Sci., div. 2, vol.4, 1893, p. 10.Monedula scitula Fox, Proc. Acad. Nat. Sci. Pbila., 1895, p. 369, female.Monedula villosa Fox, Proc. Acad. Nat. Sci. Phila., 1895, p. 370, male.Stictiella villosa Pakkek, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 45.Stictiella scitula Pabkek, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 46.Sticti?lla scitula C. L. Fox, Proc. Calif. Acad. Sci., vol. 12, 1923, p. 433.In a preceding paper I pointed out the possibility of Fox's scitulaand villosa being sexes of the same species. They are found in thesame locality; they have the venation of the wings the same; andboth have the pubescence unusually well developed. This unusualdevelopment of the pubescence alone is strong evidence that theyare sexes of one species. So far as I am aware no one has ever takena m-ale of scitula or a female of villosa. C. L. Fox reports that E. P.Van Duzee at Guaymas, Mexico, took three specimens of villosa, allmales, and in the same locality 13 specimens of scitula, all females.I have accordingly reached the conclusion that they represent a singlespecies, and since they were both described in the same paper, I haveretained as the specific name the name of the species described firstin the preparation of that paper. The female of scitula has theanterior metatarsus much flattened with the posterior border some-what curved. It bears eight well-developed spines and on some speci-mens one or more additional spinelike hairs. Two headless femalesin the collection of the United States National Museum are marked
" type " but by whom this was done I do not know.STICTIELLA TENUICORNIS (Fox)Monedula temiicornis Fox, Proc. Acad. Nat. Sci. Phila., 1895, p. 368, female.Stictiella tenuico7-nis Pabkek, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 47.In his description of this species Fox associated as sexes of onespecies males and a female that in my judgment belong to different
44 PROCEEDINGS OF THE NATIONAL MUSEUM VOL.75
species. Since the female in his description is the type of this species,I redescribed the males under the specific name of hituherculata, thedescription appearing in my previous paper on the Bembicine wasps.SPKCIMEXS EXAMINEDArizona.California: San Berdina County (Coquillett).Texas: Laredo (May 16, 1924) ; Cliisolm Mountains, Brewster County (Mitchelland Cushman). STICTIELLA MEGACERA ParkerBtictiella megacera Pabkeb, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 49.The male of this species may be recognized by the very large hirsuteprocess on the second sternite; b}'^ the widening of the flagellum atthe third segment; and by the character of the eighth sternite withits short terminal spine, shorter lateral spines, and at the base of theterminal spine the conspicuous hump, which is not developed into adiscal spine. The female shows none of these characters, but, as in themale, the legs are relatively short and stout, the middle metatarsibeing imusually thick and heavy. The second cubital cell on thefemale is almost a perfect rectangle.SPECIMENS EXAMINEDColorado: Arboles (C. F. Baker).Mexico: Tepoca Bay, Sonora (C. L. Fox).Utah : Iron County.Washington: North Yakima (July 17, 1903, Eldred Jenne).STICTIELLA TERLINGUAE C. L. FoxStictiella terlinguae C. L. Fox, Pan-Pac. Ent., vol. 4, No. 3, 1928, p. 103.This species was described by Mr. Fox from specimens taken atTerlingua, Tex., by J. O. Martin on May 6, 1927. The description waspublished after my key to the species in this genus had been pre-pared ; consequently this species is not included therein. According tothe description, the male of this species runs in my key to the male ofmagacera, from which species it may be distinguished by the prom-inent discal spine on the eighth sternite, a character lacking inmagacera. The female runs to the female of tenuicoj'^iis, which specieshas the fasciae on the tergites of the female unbroken, wliereas onthis species the fasciae on the tergites are broken into lateral anddiscal spots.Type and allotype.?In the collection of the California Academyof Sciences. STICTIELLA PIFURCATA C. L. FoxStictieUa lifurcata C. L. Fox, Proc. Calif. Acad. Sci., vol. 12, 1923, p. 431.This species, like StictieUa pictifrons, is remarkable for its super-ficial resemblance to Steniolia duplicata Provancher. the resemblance
IART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS?PARKER 45being even greater in this species than in pictifrons. The male, how-ever, is readily distinguished by the unique character of the processon the second sternite, which is well developed, its ventral surfacebeing unusually broad and its posterior end terminating in twopoints. The female may be distinguished from pictifrons^ withwhich species it is most likely to be confused, by the wholly yellowsecond sternite, the broken U-shaped discal mark on the scutum, andespecially by the presence of more or less black on the base of theclypeus. SPECIMENS EXAMINEDMexico: Augelus Bay, Gulf of California (June 26, 1921, E. P. Van Duzee) ;Guaymas (April 7, 1921, E. P. Van Duzee).Fox has described a variety of this species under the name ofalbicera, which differs from the species chiefly in having the fasciaon the tergites more broken into discal and lateral spots and in havingthese discal spots white instead of yellow. With i-espect to struc-tural characters, I have been unable to find any essential differencebetween the variety and the species.STICTIELLA EXIGUA (Fox)Monedula exigua Fox, Proc. Acad. Nat. Sci. Phila., 1895, p. 370.StictieUa exigua PARKEat. Proc. U. S. Nat. Mus., vol. 52, 1917, p. 50.This species is not represented in the collection in the United StatesNational Museum. It has been reported from Arizona and Montana,and by C. L. Fox from various points on the Gulf of California.STICTIELLA PULLA (Handlirsch)Monedula puUa Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol.99, 1890, p. 149.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 499.Monedula usitata Fox, Proc. Acad. Nat. Sci. Phila., 1895, p. 371.i>tictiella puJla Parker. Proc. U. S. Nat. Mus., vol. 52, 1917, p. 52.Handlirsch based his description of this species on the female. Acareful study of Fox's description of his usitata convinced me thatthe male he referred to usitata is the male of Handlirsch's pulla.The considerations that led to this conviction are set forth in myprevious paper. SPECIMENS EXAMINEDCalifornia: Los Angeles County (Coquillett) ; San Diego County (Coquillett) ;San Gabriel (C. E. Hutchinson).Washington. STICTIELLA ARGENTATA C. L. Foxfitietiella argentata C. L. Fox, Proc. Cal. Acad. Sci., vol. 12, 1923, p. 434.This species is closely related to StictieUa pulla Handlirsch, fromwhich the male of this species may be distinguished by the absence
46 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75
of any black on the clypeus. The female also lacks any black on thedypeus and further differs from pulla in having a fascia on the scu-tellum and in having the fascia on the first tergite very broad andwithout a median anterior emargination. On this species the cly-peus, frons, and thorax, in general, are more silvery than are thesesame parts on pulla. The femora on the female of pulla are moreor less heavily marked with black; on w'gentata the femora of thefemale are entirely yellow.SPECIMENS EXAMINEDCalifornia: San Diego County (Coquillett).Mexico: Angeles Bay (June 25-27, 1921, E. P. Van Duzee).STICTIELLA FEMORATA (Fox)Figure 33Monedula femorata Fox, Proc. Acad. Nat. Sci. Phila., 1895, p. 368.Stictiella femorata Pakkeb, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 53.The male of this species may be recognized by the emarginat?middle femora, the bituberculate second sternite and rudiments ofsimilar processes on sternites 3 and 4, and by the shape of the genitalstipes. The female may be known by its small size, and its non-emarginate white tergal fasciae, which unite with the fasciae on thesternites to form continuous rings around the abdomen. The secondcubital cell is much narrower on the radial vein than it is on thecubital. ^SPECIMENS EXAMINEDFlorida: Jacksonville (Ashmead).Texas: Brownsville; Cotulla (April 15, 1906, F. C. Pratt); Sabinol (May 26,1910, F. C. Pratt) ; Sweet Water (June 19, 1909, F. C. Bishopp).STICTIELLA DIVERGENS ParkerFigure 34
Stictiella divergens Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 55.Only the male of this species is known. It is closely related to/S. femorata Fox, from which it can be distinguished by its moreextensive maculations, richer yellow color, and particularly by theform of the genital stipes. It is not represented in the collection ofthe United States National Museum. The type is in the collection ofthe University of Kansas, in which State the only specimens knownwere taken.
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 47Genus STENIOLIA SayFigures 7, 8, 31
Stetiiolia Say, Bost. Journ. Nat. Hist., vol. 1, 1837, p. 367.
?
Patton, Bull.U. S. Geol. Surv., vol. 5, 1880, p. 364.?Handlirsch, Sitz. Akad. Wissensch.Wien, Math.-Nat. CI., vol. 98, 1889, p. 504.?Kohl, Ann. dcs K. K. Naturhist.Hofmus., vol. 11, 1896, p. 435.?Dalla Tohre, Cat. Hym., vol. 8, 1897, p.501.?Pakker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 5.Genotype.?Bemhex longirostris Say (monobasic).The extraordinary length to which the maxillae are developed,extending when at rest to the hind coxae, distinguishes members ofthis genus from those of all related genera. The genus seems to beconfined to the mountainous regions of western North America andto extend down through Central America to northern South America,from which but a single species has been thus far reported. This wastaken in Ecuador.Head wide as thorax; eyes naked, their inner margins approxi-mately parallel; ocelli not completely obliterated, placed in pits ordepressions; anterior ocellus somewhat elliptical vertically, the sidesof the pit elevated above the general surface of the frons; vertexdepressed slightly below the level of the top of the eyes; clypeussomewhat arched, carina on dorsal median line continuous withcarina between antennae; mandibles dentate; maxillae extremelylong, reaching when at rest, the hind coxae; maxillary palpus com-posed of three segments, labial of one; propodeum narrower thanthorax, its posterior lateral angle rounded ; middle femur of malewithout modifications; eighth sternite ending in three spines andbearing also a more or less well-developed discal spine; venation ofwings as in Figure 8; spatha of male genitalia as in Figure 31.KEY TO THE SPECIES OF STENIOLIA
1. Males (abdomen with 7 visible segments, antenna with 13 segments) 2.Females (abdomen with 6 visible segments, antenna with 12 segments) 12.2. Middle tibia dilated 3.Middle tibia not dilated 4.3. Abdominal maculations white obliqua.Abdominal maculations yellow tibialis.4. Apical segment of tarsi black uigripes.Apical segment of tarsi not black 5.5. Abdomen almost wholly yellow sulfurea.Abdomen black and yellow, or black and white 6.6. Clypeus yellow 7.Clypeus black or with pair of black spots (or black nasal area) more orless well developed 10.7. Femora, particularly the third pair of femora, black and ferruginous.longrostris.Femora not black and ferruginous 8.
48 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75
8. Maculations on tergites 1-5 broken into lateral and a pair of white discalspots elegans.Maculations on tergites 1-5 not as above 9.9. I'iagellar segments -H bearing small, narrow pits duplicata.Flagellar segments 4-7 not bearing pits dissimilis.30. Femora, particularly the third pair, black and ferruginous 11.femora not black and ferruginous albicantia.11. Abdominal markings yellow; spine on second sternite well developea.longirostris.Abdominal markings white; spine on second sternite lacking or weaklydeveloped guatamalensis.12. Middle tibia dilated 13.Middle tibia not dilated 14.13. Abdominal maculations white obliqua.Abdominal maculations yellow tibialis.14. Femora, particularly the third pair, black and ferruginous 15.Femora not black and ferruginous duplicata.*15. Maculations on tergites rich yellow ; apical border of tergites rufous.longirostris.Maculations on tergites white or yellowish white; apical border of tergitesblack , guatamalensis.STENIOLIA OBLIQUA CressonSteniolia obliqua Cresson, Proc. Ent. Sec. Phila., vol. 4, 1SG5, p. 469.
?
Hand-LiRSCH, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 98, 1889, p. 511.?D^viXA Torre, Cat. Hym., vol. 8, p. 501.
?
Pabker, Proc. U. S. Nat. Mus.,vol. 52, 1917, p. 12.This species is characterized by its swollen or inflated middle tibia,more evident on the male than on the female, and by its whitemaculations and white pubescence.SPECIMENS EXAMINEDColorado: Boulder (September 8. 1908, S. A. Rohwer) ; Florissam, (June 29,July 1, S. A. Rohwer) ; Silver Plume (July 10, 1897).Utah: Ogden (L. Brunner).Wyoming : Carbon County.This species has been found also in Oregon.STENIOLIA TIBIALIS HandlirachSteniolia tibialis Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI.,vol. 98, 1889, p. 513.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 501.?Parker,Proc. U. S. Nat. Mus., vol. 52, 1917, p. 14.This species like ohliqua is characterized by a swollen or inflatedmiddle tibia, but with this species the maculations are bright yellowinstead of white. In the collection of the California Academy ofSciences there is an interesting form concerning which Mr. C. L,
* Here belongs also the female of diasimilts, on which I failed to find characters onwhich I could rely with certainty to separate it from duplicata.
IART. 5 GENERIC EEVISION OF THE FOSSORIAL WASPS?PARKER 49Fox writes me as follows : " I carefully examined that interestingdark brown specimen taken by Doctor Van Dyke at Meadow Valley,Plumas County, Calif., and except for the color I can not separateit from tibialis. I think, as Doctor Van Duzee suggested, it is just acase of melanism. On the same date and at the same locality DoctorVan Dyke collected 20 males and 2 females, which I have determinedas tibialis.''^I have seen the specimen of which Mr. Fox here writes and I thinkhe is right. It is a male and entirely without maculations, but asidefrom this fact it agrees in other respects with tibialis.SPECIMENS EXAMINEDCalifornia: Meadow Valley, Plumas County (Doctor Van Dyke); SierraNevada.Handlirsch reports this species from Nevada.STENIOLIA NIGRIPES ParkerSteniolia nigripes Parkeb, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 8.This species is not represented in the United States NationalMuseum. It is known only from the type, a male in the collection ofthe Academy of Natural Sciences, of Philadelphia, taken at LosAngeles, Calif. Its distinguishing characters are the black apicalsegment of all tarsi and the peculiar form of the spines of the eighthsternite. STENIOLIA SULFUREA FoxSteniolio snlfvrea Fox, Jouvn. N. Y. Ent. Soc, vol. 9, 1901, p. 84.
?
Parkbsj,^Proc. U. S, 'Nat. Mus., vol. 52, 1917, p. 9.This species is not represented in the United States NationalMuseum. So far as I am aware it is known only from two males(one the type) in the collection of the American Museum of NaturalHistory, taken in California. It is distinguished by having theentire abdomen, except the basal part of the first segment, brightsulphur yellow. STENIOLIA LONGIROSTRIS SayFigure 31Steniolia lorifiirosfhs Say, Bost Journ. Nat. Hist, vol. 1, 1837, p. 366.
?
Hand-lirsch, Sitz, Akad. Wissensch. Wien, Math.-Nat. CI., vol. 98, 1889, p. 508.?Dalla Toree, Cat. Hym., vol. 8, 1897, p. 501.In his description of this species Say points out the presence ofblack upon both clypeus and labrum. In his description and dis-cussion of this species Handlirsch fails to note these characters,although he had before him 20 males of the species. Say's descrip-22764?20 4
50 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75tion is based upon the male. It appears that he did not have afemale of the species. Of the females that I have referred to thisspecies neither clypeus nor labrum shows any trace of black marks.Of the males, at one extreme of the series the clypeus is almostentirely black and there is a broad black band across the base of thelabrum; at the other extreme both clypeus and labrum are entirelyfree from black marks of any kind. If I had had only the twoextremes of this series before me, I should have hesitated to includethem in a single species, but the series shows such a gradual transi-tion from one extreme to the other as to make it impossible to sepa-rate the series into two groups, since the variations in the serieswith respect to other characters bear no relation to this variationin the maculation of the clypeus and labrum. All specimens that Ihave referred to this species, both male and female, agree in havingthe hind femora ferruginous and black and the apical borders ofthe tergites rufous. Since the specimens referred to this species byHandlirsch also bore these characters, I am convinced of the cor-rectness of his determination. I have at hand 1-1 males and 5 females.SPECIMENS EXAMINEDMbxioo: Cuautla (October 30, 1922, E. G. Smyth, also November 4, 1922);
"Dist. Fedrl" (J. R. Inda) ; Guanajuato (A. Duges) ; Mitla (May 2, 1904,L. O. Hov?ard). STENIOLIA ELEGANS, new speciesTy'pe (male).?Black: clypeus; labrum; mandibles, except apices;scape below; space between antennae; broad anterior orbits nar-rowed to a point above; V-shaped spot below anterior ocellus; nar-row posterior orbits broad below; posterior border of pronotum;tubercles ; spot on sides of prothorax ; pair of lateral spots and pairof small discal spots on scutum ; triangular lateral spots on scutellum :fascia on posterior border of metanotum; pair of oblique lines ondorsum of propodeum prolonged on its posterior surface; sides ofpropodeum almost entirely: narrow stripe broken into three spotson anterior of mesopleura ; fasciae on tergites 1-5 broken into a paircf rounded discal spots and a pair of sinuate lateral spots, of whichthose on one and two are very broad ; fascia on tergite 6 interruptedand bisinuate on either side the midline; apex of seventh; fasciaeon sternites 1-6, that on second very board, and those on second andthird very narrowly interrupted at midline ; legs except trochanters,coxae basally, black line above and below on femora, and black lineabove on middle and anterior tibiae ; yelloio or white. The dorsalmarkings of the abdomen are white with the extreme lateral ends ofthe lateral markings tinged with yellow. Elsewhere the markingsare a bright lemon yellow.
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 51The flagellum is black, lighter below, especially at the base, andis but slightly carinate on segments 6-12, due to the presence ofshallow longitudinal pits. The pubescence is conspicuous, white, andlongest on frons, sides of thorax, propodeum, and base of legs. Thelegs are of normal form and the apical segment of the tarsi of themiddle and posterior legs bears a small black maculation above,limited to the posterior half of the surface. The wings are hyaline.The second sternite bears a prominent median process. The genitaliaresemble those of dwplicafa.A single male paratype differs from the type in having the mark-ings on the sternites less extensive, in having two instead of threeyellow spots on the mesopleura, and in having a black spot below onthe third pair of tibiae.Length 16 mm. Described from two males, type and paratype,from San Luis Potosi, Mexico.Type.?In the collection of Massachusetts Agricultural College,Amherst, Mass. STENIOLIA DUPLICATA ProvancherFigures 7, 8
Sfeiiiolia dupUcata Provancher, Add. Faun. Canada, Hym., 1888, p. 414.
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Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 10.Steniolia scolopacca IIandlirsch. Sitz. Akad. Wi.-^sensch. Wien, Math.-Nat. CI.,vol. 98, 1889, p. 510.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 501.?Hand-LiRSCH, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 104, 1895, p. 965.Steniolia meridionalis C. L. Fox, Proc. Calif. Acad. Sci., vol. 12, 1923, p. 430.This appears to be the most widely distributed and certainly, withregard to the number of individuals, the most abundant species of thegenus. It presents an unusually wide variation in the development ofthe maculations and also considerable variation in the shade of yellowpresent. Although the fundamental pattern shown by the macula-tions remains almost constant, it is diificult to find any two speci-mens on which the maculations are exactly alike I have examinedthe type of C. L. Fox's meridionalis and in my judgment it is only acolor variation of this species.SPECIMENS EXAMINEDArizona: Williams (July, Barber and Schwartz).California: Coalinga, Fresno County (June 3, 1907, J. C. Bradley); DiabloRange, Fresno County (June 2, 1907, J. C. Bradley) ; Jacumba Springs(July 29, 1911, W. D. Pierce) ; Los Angeles County; Yosemite (July 20,1905, J. McFarland).Colorado: Arboles (C. F. Baker) ; Boulder (August 25, S. A. Rohwer).Idaho: Lewiston (C. L. Fox).Lower California : San Jose Del Cabo.
52 PROCEEDINGS OF THE NATIONAL. MUSEUM VOL. 75-Mexico: Envii' de Guadalajara, Jalisco (M. Di^et).
'Seyada: Reno (August 19, 1890, F. H. Hellman).New Mexico: Alamogordo (April 29, 1902j ; High Rolls (May 30, 1902) ; LasCruces (May 17, S. Steel) ; Mesilla Park (C. N. Ainslie).Texas: Marfa (June 5, 1908, Mitchell and Cushman).Utah: Lehi (Septemher 9, 1905, W. A. Hooker).Washington: North Yakima (July 7, 1903, Eldred Jenue).Wyoming: Ritzville (July 29, 1922, M. C. Lane); Stratford (September 3^1920). STENIOLIA DISSIMILIS C. L. Fox
ateniolia dissimilis C. L. Fox, Proc. Calif. Acad. Sci., vol. 12, 1923, p. 429.This species is very closely related to Steniolia dupUcata. Themales may be distinguished from the males of duplicata by the ab-sence of pits on the segments of the flagellimi. With regard to thefemales of this species, I have been unable to discover characters onwhich I could rely to separate them from the females of duplicata.Consequently the females of these two species are not separated fromone another in the accompanying key to the species of this genus.STENIOLIA ALBICANTIA ParkerSteniolia alhicantia Parkek, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 12.This species was described from only male specimens and up tothe time o^ the present writing no females have been discovered thatcan be associated with these males as sexes of one species. C. L. Fox,,of San Francisco, has devoted considerable time to the study of theBembicids and has collected extensively in the West. He writes me
:
At Lake City, Modoc County, Calif., on the eastern side of the WarnerMountains, close to the Nevada border line, July, 1922, I collected a largeseries of what I determined as albicantia, and along with them I also tookseveral males and females of typical duplicata. At Lewiston, Idaho (on theeastern border line of Washington), alongside of the Snake River, this summer(1925), I collected a series of albicantia, only males (similar to those fromLake City, Modoc County, Calif., in 1922) and with them in the same localityonly females of duplicata. I did not come across a male duplicata during thistrip.I have never come across any white females to associate with albicantia, andin your description only males are described. The specimens of albicantia inmy collection run to all sizes, robust and small.I liave seen some of the specimens collected by ISIr. Fox at LakeCity, Calif., and at Lewiston, Idaho, and they belong to albicantia.The data, however, that Mr. Fox has obtainecl from his work in thefield and which he sets forth in his letter throw doubt on the validityof this species. I strongly suspect that the male of duplicata appearsunder two forms and that albicantia is simply a white form of themale of duplicata. More field work must be done and a fuller
^RT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 53knowledge of the biology of these wasps obtained before the questionof the validity of species can be satisfactorily answered.SPECIMENS EXAMINEDCalifornia: Lake City, Modoc County (July. 1922. C. L. Fox).Idaho: Lewiston (C. L. Fox).Washington: Grand Coulee, Columbia River (July 12. 1902) ; Palm (July 25,1923, M. C. Lane).STENIOLIA GUATEMALENSIS (Rohwer)
^tictia guatemalensis Rohweb, Proc. U. S. Nat. Mus., vol. 47, 1914, p. 517.This species was described b}'' Rohwer from two females fr<jm
?Guatemala but was referred to the wrong genus. The males that Iliave associated with these two females have the maculations whiteand have a pair of black marks, variable in size, on the clypeus.The maculations on the females are more yellowish but they are byno means so yellow as those of longirostris. Like that species, bothmales and females of this one have the hind femora black andferruginous. SPECIMENS EXAMINEDEcuador: (C. T. Baker).Gt'ATEMALA : AntigTiE (W. P. Cockerell) ; Guatemala City (W. P. Cockerell).Salvador: Sau Sebastian, Department of San Salvador (S. Calderon).RUBRICA, new genusFigures 21, 22, 73Monedula Handliesch and Authors (part).Genotype.?Monedula gravida Handlirsch.Species belonging to this genus may be readily distinguished fromthose of other genera by the following combination of- characters
:
Anterior ocellus a transverse, linear, arcuate cicatrice; maxillarypalpus composed of six segments, labial of four; posterior lateralangles of propodeum rounded. In the case of the males the seventhtergite bears lateral spines ; the eighth sternite ends in a single spine
;
the middle coxa bears a more or less well-developed posterior tooth,and the middle femur near its apex below bears a pair of flattened,roundly pointed teeth.Head broad as thorax; eyes naked; anterior ocellus reduced to acicatrice, transverse, arcuate; clypeus prominent, bulging, its basalhalf on median line strongly carinate, its apical portion strongly flat-tened; mandibles dentate; maxillary palpus composed of six seg-ments, labial of four ; posterior lateral angles of propodeum rounded,
I54 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75its posterior surface somewhat concave ; middle coxa of male bears amore or less well-developed posterior tooth; middle femur of malenear its distal end below bears a pair of flattened, rounded teeth aris-ing from a common base; posterior part of second sternite of maleswollen and bearing a pair of rounded elevations; eighth sternite ofmale ends in a single spine; seventh tergite of male bears lateralspines; spatha of male genitalia as in Figure 73.Species belonging to this genus have been reported from Mexico,North America, and from Brazil to Argentina in South America.KEY TO THE SPECIES OF RUBBICA
1. Males (abdomen with 7 visible segments; antenna with 13 segments) 2.Females (abdomen with 6 visible segments; antenna with 12 segments) 4.2. Anterior metatarsus bearing on its posterior border a series of roundedlobelike projections more or less black in color gravida.Anterior metatarsus not so fonned 3.3. Sixth segment of the flagellum strongly excavated on its posterior side.denticornis.Sixth segment of flagellum not strongly excavated on its posterior side.surinamensis.4. Sixth tergite without a well-defined carina ; outline of tergite as in Fig.ure 223 gravida.Sixth tergite with well-defined carina ; outline of sixth tergite otherwise 5.5. Line dividing upper area of clypeus from lower area a sharply-defined, angu-lar ridge surinamensis.Line dividing upper from lower area of clypeus not sharply defined,rounded denticornis.RUBRICA GRAVIDA (Handlirsch)Figures 21, 22, 223Monedula gravida Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI.,vol. 99, 1890, p. 121.?Dalla Tobre, Cat. Hym., vol. 8, 1897, p. 497.Of the known species of this genus gravida is the largest and mostrobust. The wings are uniformly and rather heavily infumated. Themale of the species has) the anterior metatarsus dilated and flattenedwith its posterior border bearing a series of roimded lobes usuallyblack in color. The last two segments of the flagellum of the male(eleventh and twelfth) are strongly excavated below and the apex ofthe tenth below is drawn out into a stout tooth. The female lacks amedian carina on the sixth tergite.SPECI.MENS EXA.MIXEDArgentina: Buenos Aires (December 31, 1921).Parv\guay: Sapucay (March 29, 1903, W. T. Foster).Handlirsch reports this species also from Rio Grande do Sul, Brazil.
ABT. 5 GENERIC EEVISION OF THE FOSSORIAL WASPS PAHKER 55RUBRICA SURINAMENSIS (Degeer)h' Figure 73
1^Apis siirinamensis Degeer, Mem. Hist. Ins., vol. 3, 177S, p. 569.Monedula surinamensis Handlirsoh, Sitz. Akad. Wissensch. Wien, Math.-Nat.CI., vol. 99, 1890, p. 115.?Dalla Toree;, Cat. Hym., vol. 8, 1897, p. 500.I have before me 50 specimens of this species and the variationamong them with regard to color is quite extensive. This variationoccurs with respect to the ground color as well as to the maculations.On some specimens the ground color is predominantly black; onothers it is chiefly ferruginous; while on still others it is a combina-tion of black and ferruginous. The maculations vary in color fromlight creamy yellow to much darker shades of yellow and on a fewspecimens the fasciae on the tergites show two shades, giving theappearance of double fasciae. There is a wide variation in the macu-lation of the scutum, especially on the females. At one extreme thescutum is black with only narrow lateral lines of ferruginous ; at theother extreme the lateral lines are broad and yellow and there ispresent also a pair of very broad yellow discal lines, so that the blackon the scutum is almost obliterated. Specimens having the scutumthus extensively maculated have the sides and ventral surface of thebody wholly yellow. If I had representatives of only these twoextremes I should be inclined to consider them as representing dis-tinct species, but the series before me shows a well-marked gradationfrom one extreme to the other. Furthermore, some specimens havingthe scutum almost black have the sides and venter as decidedly yellowas those with the scutum almost entirely yellow.SPECIMENS EXAMINEDA.BGENTINA: Carcarana (Brunner) ; La Rioja (B. P. Clark).Bolivia: Corinas, Rio Beni (October, 1921, W. M. Mann); Rosario, LakeRogogua ("W. M. Mann) ; San Georgorio, Beni (October, 1921, W. M.Mann )
.
Brazil: Benevides, Para (October, 1918, S. M. Klages) ; Chapada; Obidos^ (August 14, 1919, Parish) ; Pernambuco (January 17, 1883) ; SuoreP Marojo, Para.British Gxhana : Georgetown.Colombia: Bogota; Las Flores, Santa Marta (December 25, 1922).Dutch Guiana.Paraguay: Sapucay (February 24, 1903, W. T. Foster).Peru: Piura (April 23, 1911).Trinidad, S. A.Venezuela: Maripa, Rio Caura (October, 1909, M. A. Carricker).RUBRICA DENTICORNIS (Handlirgch)Monedula denticornis Handlirsoh, Sitz. Akad. Wissensch. Wien, Math.-Nat.CI., vol. 99, 1890, p. 119.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 497.This species so closely resembles surinaniensis that it is with muchdifficulty that the two species can be separated. The males can be
56 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75distinguished by the character of the segments of the flagelhim asHandlirsch has pointed out in his description of this species. Thefemales of dentlcornis and sunnamensis are almost identical. Hand-lirsch separated them from one another by the character of the ridgeor boundary that divides the dorsal area from the ventral area ofthe clypeus, this boundary line being distinct and angular onsurinameTisis and indistinct and rounded on denticornis. It is acharacter difficult to use and of doubtful value, but I have beenunable to discover anj^thing better.SPECIMENS EXAMINEDEcuador: Pasorja.Mexico: Escuinapa, Siualoa (J. H. Batty) ; Alta Mira, Tampa (June 22, 1903).Peru: Lima (E. A. Martinez?Det. Rohwer) ; Lima (December 27, 1912,C. H. T. Townsend) ; Piura (April 28, 1911).Genus BEMBIX FabriciusFigures 27, 28Apis Linnaeus, Syst. Nat., ed. 10, vol. 1, 1758, p. 574.Bcmhia; Fabricius. Syst. Ent.. Char. Gen., 1775, No. 115.
?
Parker, Proc. U. S.Nat. Mus., vol. 52, 1917, p. 75.Bembyx Fabricius, Syst. Ent., 1775, p. 361, No. 115.Bemhex Fabricius, Gen. Insect, 1776 (or 1777), p. 122.
?
Olivier, Encycl. Meth.,vol. 4, 1789, p. 288.?Fabricius, Ent. Syst., vol. 2, 1793, p. 247.?LATREaxxB,G?ii. Crust, et Ins., vol. 4, 1809, p. 97.
?
Handlirsch, Sitz. Akad. Wissensch.Wien, Math.-Nat. CI., vol. 102, 1893. p. G63.?Kohl, Ann. K. K. Naturhist.Hofiuua, vol. 11, 1896, p. 430.?Dalla Torre. Cat. Hym., vol. 8. 1897, p. 501.Monedula Dahlbom, Hym. Eur., vol. 1, 1845, p. 492.Genotype.?Ajns rostrata Linnaeus, designated by Latreille in1810; Morice and Durant (1915) concur in the designation.Members of this genus are world-wide in distribution. They maybe distinguished by the following combination of characters: An-terior ocellus reduced to a linear, transverse, arcuate cicatrice (tracesof a lens present in a few species) ; posterior-lateral angles of thepropodeum rounded, its posterior surface approximately flat; maxil-lary palpus composed of four segments, labial of two; first inter-cubitus more or less strongly bent.Head wide as or slightly wider than the thorax ; vertex depressedbut slightly below the level of the top of the eyes; anterior ocellus(except in a few species) completely reduced to a linear, transverse,arcuate cicatrice; eyes naked; clypeus moderately arched, a broad,shallow median emargination on its apical border which is producedinto a distinct point between the labrum and the base of the man-dible; mandibles dentate; maxillary palpus composed of four seg-ments, labial of two (on some individuals of certain species thenumber of segments in the palpi may vary) ; posterior-lateral angles
IAirr. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 57
of propodeiim rounded, its posterior surface approximately flat ; firstintercubitus usually strongly bent (in a few species nearly straight)
;
second and sixth sternites of male with or without processes; eighthsternite of male ending in a single spine ; spatha of male genitalia asin Figure 128. KEY TO SPECIES OF BEMBIX
1. Males (visible segments in abdomen 7; segments in antenna 13) 2,.Females (visible segments in abdomen G; segments in antenna 12) 86-2. Spines of anterior metatarsus broad, flat, and black; anterior border ofmiddle metatarsus at apical end drawn out into a broad, thin, wedge-like process (fig. 174) regia.Spines of anterior metatarsus normal ; middle metatarsus not develoiiedas above 3,3. Labrum with a prominent, median, transverse notch ; anterior metatarsuswith eight spines ; seventh tergite with distinct apical pygidial area setoff by lateral ridges mima.Combination of characters as given above not present ^^4.4. Lateral border of seventh tergite with an emargination producing a sharplateral angle or lateral spine, or with a lateral ridge that may be pro-longed into a spine but is never continuous with the latero-apical marginof the tergite 5.Lateral margin of seventh tergite not as above 20.5. Lateral ridge or carina of seventh tergite not ending in a spine or the lat-eral emargination not forming a distinct, sharp angle 6.Lateral ridge of seventh tergite ending in a distinct spine, or the lateralemargination forming a distinct lateral angle or spine 12.6. Scutum densely covered with short, whitish, velvety pubescence taiwana.Scutum not covered with dense, short, whitish, velvety pubescence 7.7. Scutum with prominent U-shaped discal mark fucosa.Scutum without discal marks 8.8. Middle femur bearing several spiuelike teeth (fig. 126) loupata.Middle femur not bearing several spinelike teeth 9.9. Species 20 mm. or more in length ; width of frons forming about one-thirdof total width of head 10.Species less than 20 mm. in length ; width of frons forming more thanone-third the total width of head ? 11.10. Apex of process on sixth stei'nite not reaching apical border of the sternite
;
seventh sternite with a prominent median carina residua.Apex of process on sixth sternite reaching beyond the apical border of thesternite; seventh sternite with a pair of prominent lateral carinae.recurva.11. Apical segment of tarsi marked with black ; seventh tergite as in Fig-ure lis levis.Apical segment of tarsi not marked with black; seventh tergite not asabove opinabilis.12. Carina or angle on lateral margin of seventh tergite produced into a dis-tinct spine (fig. 204) 13.Lateral margin of seventh tergite showing a sharp or distinct angle butnot a spine (fig. 213) , 16.13. Labrum unusually long, reaching much beyond the anterior coxae ; apicalpart of seventh tergite rugose magdalena.Labrum normal ; seventh tergite punctate 14.
58 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75
14. Middle femur dentate bidentata.Middle femur plain, or with a single tooth near the apical end borderinga well-defined notch 15.15. Middle femur plain ; seventh tergite black tenuifasciata.Middle femur with tooth bordering a deep notch at apex; seventh tergiteferruginous mobii.IG. Seventh sternite conspicuously narrowed; process on sixth sternite arounded, transverse swelling stenebdoma.Seventh sternite normal ; process on sixth otherwise 17.17. Dorsum of abdomen almost wholly pale mediterranea.Dorsum of abdomen bearing only fasciae, of which the first may be inter-rupted or reduced to lateral spots 18.18. Middle femur dentate below on apical half torosa.Middle femur plain 19.19. Terminal segment of antenna curved and truncate, its posterior apicalangle pointed (fig. 162) ; seventh tergite black quinquispinosa.Terminal segment of antenna not specially modified ; apex of seventhtergite maculated , pugillatrix,20. Spine of eighth sternite ending in two points persimilis.Spine of eighth sternite ending in a single point 21.21. Anterior tibia bearing on inner side near apical end a slight depressionbetween two black spots, the mort distal one cup-sliaped tenebrosa.Anterior tibia not bearing such characters 22.22. Middle metatarsus bearing a distinct lobelike dilation or swelling on itsinner surface, usually at the middle or near the proximal end 23.Middle metatarsus without such dilation or swelling 20.23. Basal part of wing infumated ; apical part clear 24.Wings clear, or uniformly infumated more or less 25.24. Fasciae on tergites 1-5 yellow; sternites ferruginous doriae.Fasciae on tergites 1-5 pale; only sternites 2 and 6 marked with fer-ruginous fuscipennis25. Second sternite bearing a central ferruginous area ; slender, less than 20mm. in length stevensoni.Second sternite without ferruginous area ; stout, 20 mm. or more inlengtli , refuscata.26. Middle femur serrate or dentate (in some cases only two or three teethnear distal end) 27.Middle femur not serrate or dentate, smooth 67.27. Second and sixth sternites without distinct processes (in some species thesecond sternite may bear a more or less evident carina and the sixth mayor may not bear a median blunt protuberance suggestive of a process) _28.Second sternite plain or weakly carinate ; sixth with small median processand a pair of small lateral processes near the apex of the segment.insularis.Second sternite with distinct process ; sixth plain sinuata.Second and sixth sternites with processes more or less well developed 36.28. Middle metatarsus distinctly curved, its inner surface beset with severalstout spines 29.Middle metatarsus not so formed 30.29. Mesosternum marked with black; sternites 2-4 mostly black; genital stipesas in Figure 217 arcuata.Mesosternum yellow; sternites 2-4 almost wholly yellow; genital stipesas in Figure 218 U-scripta.
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 59
30. Sixth and seventh tergites black 31.Sixth, or both sixth and seventh tergites, maculated 33.31. Fascia on second tergite continuous velox.Fascia on second tergite interrupted o2.32. Clypeus with lateral borders black; tarsi more or less heavily suffusedwith black above cinerea.Clypeus wholly yellow; tarsi wholly yellow liinei.33. Clypeus wholly black alacris.Clypeus yellow 34.34. Seventli tergite with distinct lateral lobes (fig. 153) 35.Seventh tergite without lateral lobes aldabra.35. Seventh tergite notched at the apes (fig. 208) trepanda.Seventh tergite roundly pointed at the apex (fig. 153) crientalis.Seventh tergite squarely truncate at the apex (fig. 191) seculata.36. Prccess on sixth sternite prominent, its ventral surface flattene'l, bifurcateat apex 37.Process on sixth sternite a transverse ridge, not sharply pointed butslightly curved on each side of midline belfragei.Process on sixth sternite prominent, very broad and thin, rounded distally,almost a semicircle. (Intermediate segments of anterior tarsus dilated,fattened, and marked with black) Integra.Process on sixth sternite prominent, its ventral surface flattened, bluntlypointed; pair of lateral processes on same steniite 38.Process on sixth sternite not as above, either relatively small or, ifflattened and roundly pointed, then the lateral processes on this sterniteare lacking 43.S7. Spur on the middle tibia reaching to or beyond the middle of the meta-tarsus amoenaSpur on middle tibia not reaching to or beyond the middle of the meta-tarsus sayi.38. Thorax, propodeum, and abdomen without maculations (.Japan) fumida.Thorax, propodeum, and abdomen?one or more of these maculated .39.39. Narrow basal border of clypeu-^ black 40.Basal border of clypeus otherwise 41.40. Scutum without discal marks oculata.Scutum with well-developed (U-shaped) discal mark nigrocornuta.41. Segments 8-12 of flagellum dilated and bluntly spinose on posterior border(fig. 140) miserabilis.Segments of flagellum not as above 42.42. Prothorax not maculated; genital stipes as in Figure 112 hamata.Prothorax maculated in greater or less degree ; genital stipes otherwise.nubilipennis.43. Anterior distal border of middle tibia produced into a spinelike process 44.Anterior border of middle tibia not so developed, normal 46.44. Middle tibia curved ; middle metatarsus flattened at the apical end.merceti.Middle tibia not curved ; middle metatarsus round 45.45. Large, 20 mm. ; genital stipes as in Figure 182 regnata.Smaller, 15 mm.; genital stipes as in Figure 194 spatulata.46. Last three segments of antenna broad, flattened, and excavated below
;
apical segment triangular in outline (fig. 1.59) 47.Last three segments of antenna not as above 48.
50 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 7C
47. Seventh sternite with a lougitudinal, median carina that is bifurcate atapex ; spine of eighth stei-nite normal rostrata.Seventh stei-nite with simple median carina that does not reach the apexof the sternite; spine of eighth sternite short, straight, and broadlyflattened picticollis,48. Clypeus wholly or in part black, or bearing a pair of black spots 49.Clypeus yellow or pale 52.49. Middle metatarsus with a pair of stout spines at its middle point below;distal half below somewhat curved megerlei.Middle metatarsus not as above 50.50. Clypeus and labrum (except lateral margins in some specimens) entirelyblack melanopa.Clypeus at most with a pair of black spots ; labrum yellow 51.51. Scutum without discal marks; genital stipes as in Figure 98 forcipata.Scutum with well-developed discal marks; genital stipes as in Figure100 frioensis.52. Seventh tergite as in Figure 148 ; genital stipes as in Figure 14T__ochracea.Seventh tergite and genital stipes otherwise 53.53. Fascia on second tergite inclosing a pair of black sjwts ; some or all pairsof lateral spots on sternites may be connected 54.Fascia on second tergite not inclosing black spots ; lateral spots on sfernitesnot connected 60.54. Dorsum and posterior surface of propodeum immaculate ; genital stipes asin Figure 91 55.Dorsum and posterior surface of propodeum maculated ; genital stipesotherwise 56.55. Seventh sternite terminating with a distinct median carina ; fascia on firsttergite alone interrupted festiva.Seventh sternite terminating with a distinct median notch ; some or allfasciae on tergites (in addition to the first) interrupted muscicapa.56. Spine of eighth sternite flattened, resembling a spearhead (fig. 145).niponica.Spine of eighth sternite rounded, of normal foi-m 57.57. Fascia on first tergite continuous; second sternite with broad apicalfascia 58.Fascia on first tergite interrupted ; second sternite with only lateral spots(that may be connected with apical lines) 59.58. Apical segment of antenna flattened and truncate at tip; scutum withoutdiscal marks flavescens.Apical segment of antenna i-ounded at tip; scutum with evident U-shapeddiscal mark frioensis.59. Fasciae on tergites. except on first, continuous connexa.Fasciae on tergites all interrupted frioensis.60. Narrow longitudinal and transverse discal lines on scutum; fascia onscutellum aldabra.Above combination of maculations on scutum and scutellum notpresent qi^61. Flagellum simple, none of its segments spinose or excavated gradilis.Flagellum with some of its segments spinose or excavated 62.62. Sides of propodeum and thorax (excluding prothorax) black; rarely smallspot on mesopleura 63.Sides of propodeum and thorax with conspicuous maculations 66.
I-
Attr.5 .GENERIC REVISIOISr OF THE FOSSORIAL WASPS PARKER 61
63. Fasciae on tergites narrow; usually (not always) all interrupted; ulti-mate tergite black spinolae.Fasciae on tergites relatively broad, all but the first continuous ; ultimatetergite maculated 64.64. Fifth .segment of flagellum spinose ; pubescence normal ; process on sixthsternite short, broad, and roundly pointed ; fasciae on tergites brightyellow cameroni.Fifth segment of flagellum not spinose ; process on sixth sternite narrowand sharply pointed ; fasciae on tergites white or greenish yellow 65.65. Fasciae on tergites white comata.Fasciae on tergites greenish yellow primaaestate.66. Scutellum with pair of large lateral spots similans.Scutellum without lateral spots primaaestate.67. Process on sixth and second steniites lacking (second may sometimes showa median carina) 68.Process on sixth sternite two approximated tubercles ; seventh sternite aspine 73.Process on sixth sternite median and apical, supplemented by a pair ofcurved lateral carinae ; prominent lateral carinae on seventh sternite.liberiensis.Process on sixth, sternite a simple median swelling, not carinate or pointed :that on second sternite small, median and pointed ; thorax and propodeumentirely black and coA'ered with long, dense, hoary pubescence albata.Process on sixth sternite a transverse ridge extending entirely across thesternite, its median part broadly curved and brought to a sharp edge;process on second sternite prominent; intermediate segments of anteriortarsus greatly dilated zonata.Process on sixth sternite variable in development, median, single, broadlytriangular or narrow, pointed or notched at the apex; that on secondmore or less well developed, sometimes lacking ,_74.68. Clypeus marked with black 69.Clypeus not marked with black 71.69. Seventh segment of flagellum spinose ; seventh sternite tricarinate.formosana.Seventh segment of flagellum not spinose; seventh sternite with only amedian carina 70.70. Sternites 2-4 with small lateral spots kreichbaumeri.Sternites with yellow fasciae, much narrowed at the midline raptor.71. Fasciae on tergites yellow, limited to 1-i brullei.Fasciae on tergites pale, not limited to tergites 1^ 72.72. Seventh sternite ending in a spine pruinosa.Seventh sternite not ending in a spine comantis.73. Sides of thorax and propodeum black ; yellow on tergites limited to lateralspots beutenmulleri.Sides of thorax and propodeum almost entirely yellow; yellow fasciae ontergites continuous occidentalis.74. One or more segments of flagellum spinose infumata.Segments of flagellum not spinose 7.5.75. Clypeus black or bearing black spots littoralis.Clypeus neither black nor bearing black spots 76.76. Propodeum black; fasciae on tergites limited to 1-4 brullei.Propodeum maculated more or less ; fasciae on tergites not limited to l-4_77.
52 PKOCEEDINGS OF THE NATIONAL MUSEUM vol.75
77. Fasciae on all tergites interrupted 78.Fasciae on tergites, some or all, continuous 80.78. Sixth and seventh tergites maculated 79.Sixth and seventh tergites not maculated inops.79. Scutum with broken U-shaped yellow discal mark; fasciae on tergitesyellow frioensis.Scutum, at most, bearing small white discal lines; fasciae on tergiteswhite multipicta.80. Fasciae on tergites white with a trace of yellow on anterior margin
;
sternites 2-5 with broad, bright yellow fasciae almost completely cover-jn<r them flavolatera.Combination of fasciae on tergites and sternites as given above not pres-ent 81.81. Metanotum black; fasciae on tergites creamy white 82.Metauotum maculated; fasciae on tergites yellow 83.82. Fasciae on tergites continuous agrestis.Fascia on first tergite (and usually those on third and fourth) inter-rupted texana.83. Front wing slightly infumated, most evident along the borders of theveins melanaspis.Front wing hyaline 84.84. Scutum usually with pair of discal marks; dorsum of propodeum withcurved yellow fascia troglodytes.Scutum without discal marks ; dorsum of propodeum black 85.85. Process on second sternite prominent ; lateral spots on second sterniteconnected helianthopolis.Process on second sternite reduced, carinate in form ; lateral spots onsecond sternite not connected bahiae.86. Antennae and frons (except spot surrounding anterior ocellus) ferruginous
- or yellow suffused with ferruginous ; tergites 1-5 with conspicuousmaculations ; length 22-25 mm 87.Combination of characters as given above not present 88.87. Scutellum, metanotum, and propodeum each bearing a fascia diversipennis.Scutellum, metanotum, and propodeum immaculate refuscata.88. Neither metanotum nor dorsum or posterior surface of propodeum (exclud-ing lateral angles) maculated 89.Metanotum or dorsum of propodeum or its posterior surface, any or allof these maculated 116.89. Fasciae on all tergites interrupted medially (in some cases reduced tolateral spots or wholly lacking) 90.Some or all of the fasciae on tergites continuous 103.90. Ultimate tergite strongly wrinkled belfragei.Ultimate tergite not wrinkled, punctate (or rugose, in which case thelabrum is abnormally long) 91.91. Clypeus heavily marked with black 92.Clypeus not marked with black 96.92. Wings clear ; length 15 mm. or less 93.Wings somewhat infumated ; length greater than 15 mm 95.93. Scape black ; maculations of first and fifth tergites reduced to small widelyseparated lateral spots madecassa.Scape maculated below ; maculations of first and fifth tergites interruptedfasciae
, 94^
ART. 5 GENERIC EEVISION OF THE FOSSORIAL WASPS PARKER 63^
94. Sternites 2-5 with lateral spots variabilis.Sternites 2-5 entirely black atrifrons.95. Base of clypeus strongly carinate; apex of sixth tergite rounded.liberiensis.Base of clypeus not strongly carinate; apex of sixth tergite truncate.infumata.96. Wings, except apical portion, clouded; abdomen almost devoid of macu-lations tenebrosa.Wings clear; abdomen with evident maculations 97.97. Pubescence on head and thorax, especially on the sides, unusually longand hoary; middle tibial spur reaching to or beyond the middle pointof the metatarsus 98.Pubescence normal ; middle tibial spur not reaching to middle point ofthe metatarsus 99.98. Sixth tergite maculated connexa.Sixth tergite black amoena.99. Fasciae on tergites sinuate but not greatly attenuated medially ; bodycomparatively slender 100.Fasciae on tergites wide laterally, attenuated medially or reduced tolateral spots ; body relatively robust 101.JOG. Fascia on second tergite imperfectly inclosing pair of discal spots ; thirdand fourth with pair of anterior emarginations ; fasciae yellow.
<?' muscicapa.^ Fascia on second tergite like those on third and fourth ; fasciae on tergiteswhite spinolae.101. Eyes not widely separated, inner margins plainly divergent at the clypeus
;
lateral spots on sternites connected by apical lines beutenmulleri.Eyes widely separated, inner margins not divergent at the clypeus ; lateralspots on sternites not connected by apical lines 102.102. Abdominal markings creamy v/hita; tibiae heavily marked with black;length about 16 mm : cinerea.Abdominal markings yellow ; tibiae yellow ; 18-20 mm hinei.103. Basal half of wings heavily clouded 104.Basal half of wings not heavily clouded 105.104. Scutellum with pair of lateral spots; sixth tergite black nubilosa.Scutellum black ; sixth tergite maculated fuscipennis.105. Clypeus with black basal border or a pair of basal black spots; usuallydiscal spots on second tergite 106".Clypeus not marked basally with black 108.106. Sides of thorax and propodeum conspicuously maculated ; length greaterthan 20 mm luzonensis.Sides of thorax and propodeum black or sparingly maculated ; length lessthan 20 mm 107.107. Fascia on first tergite interrupted texana.Fascia on first tergite continuous flavescens.108. Sides of mesothorax or propodeum or both with evident maculations__109.Sides of mesothorax and propodeum black (rarely with inconspicuousmaculation on mesothorax) 112
I 109. Large and robust, 17-20 mm. ; fascia on second tergite more or less com-pletely inclosing pair of black spots connexa.Smaller, 15 mm. or less ; fascia on second tergite lacking black spots__110.
^ PROCEEDINGS OF THE ISTATIONAl. MUSEUM vol.73110. Scutum and scutellum wholly black Integra.Scutellum and sometimes the scutum with maculations, which may bequite small ^^^'111. Fasciae on tergltes yellow similans.Fasciae on tergites white primaaestate.112. Fascia on first tergite continuous 113.Fascia on first tergite interrupted 114.113. Fascia on second sternite inclosing pair of black spots, or bearing pair ofanterior emarginations ; sixth sternite black brullei.Fascia on second sternite not inclosing black spots or bearing emargina-tions ; sixth sternite maculated albata.314. Fasciae on tergites bright yellow; ultimate tergite with central yellowmaculation cameroni.Fasciae on tergites soiled or greenish white, rarely greenish yellow; sixthtergite black or with white (sometimes greenish yellow) maculation__115.115. Pubescence normal; sixth tergite black spinolae.Pubescence unusually abundant ; sixth tergite with white ( rarely gre?.nishyellow) maculation, sometimes much obscured comata.116. Lateral spots on st^nites, at least those on sternite two, separated by aferruginous area or band 117.Lateral spots on sternites not so separated ; ferruginous, if present at all,limited to apical lines 120.117. Clypeus strongly carinate at base ; second abscissa of the cubitella lacking.nupera.Clypeus not strongly carinate at base ; second abscissa of cubitella present(sometimes much reduced) . 118.118. Fasciae on tergites yellow 119.Fasciae on tergites pale loupata.119. Wings hyaline capensis.Wings infumated stevensoni.120. Labrum with median longitudinal carina whose distal part is broadenedand longitudinally grooved regia.Labrum without such development 121.121. Wings clouded medially or basally 122.Wings not clouded medially or basally 125.122. Clypeus not marked with black 123.Clypeus black or marked with black 124.123. Antennae ferruginous; legs marked with ferruginous gracilens.Antennae black and yellow ; legs black and yellow nubilpennis.124. Maculation on mesopleura large and conspicuous ; lateral spots on secondsternite (sometimes on all sternites) united by apical line melanaspis.Maculation on mesopleura small or lacking ; lateral spots on second sternitenot connected oculata.125. Scutum with no trace of discal marks 126.Scutum with more or less well-developed discal marks 143.126. Large, 17-22 mm. in length 127.Small, 16 mm. or less in length 134.127. Fasciae on tergites yellow; second inclosing black spots 128.Fasciae on tergites white or pale yellow ; second never inclosing pair ofblack spots 129.128. Clypeus yellow occidentalis.Clypeus almost entirely black recurva.
ART. 5 GENERIC KEVISIOlSr OF THE FOSSORIAL WASPS PARKER 65
129. Sixth tergite maculated '. 131.Sixth tergite Wack 130.130. Anterior metatarsus bearing seven spines ; fifth tergite with broad continu-ous fascia , pruinosa.Anterior metatarsus bearing five spines ; fifth tergite with widely separatedlateral spots quinquispinosa.131. Sixth tergite bearing .spinelike hairs, most numerous laterally (spinelikehairs on the apical border of fifth tergite also) sinuata.Sixth tergite (and fifth) devoid of spinelike hairs 132.132. Scutellum bearing lateral spots rostrata.Scutellum bearing a fascia 133.133. Fasciae on all tergites continuous miserabilis.Fasciae on tergites 1-3 interrupted medially liventis.134. Clypeus not marked with black 140.Clypeus black or marked with black 135.135. Labrum yellow or pale 136.Labrum black or marked with black 138.136. Sixth tergite maculated at apes megerlei.Sixth tergite black 137.137. Posterior metatarsus marked with black f formosara.Posterior metatarsus entirely yellow oculata.138. Mesopleura and metapleura well maculated helianthopolis.Mesopleura and metapleura black (rarely .small spot on mesopleura) 139.139. Fascia on the fifth tergite continuous velox.Fasciae on the fifth tergite interrupted melanopa.140. Fascia on first tergite continuous ; fasciae on tergites pale mercetl.Fascia on fir.st tergite interrupted (sometimes continuous, in which casefasciae on tergites are yellow) 141.141. Fasciae on tergites yellow similans.Fasciae on tergites pale 142.142. Interrupted fascia on dorsum of propodeum inops.No fascia on dor.sum of propodeum primaaestate.143. Deep median transverse notch on front of labrum (fig. 135) mima.Transverse notch lacking, at most a median prominence on labrum 144.144. First intercubitus vein but slightly bent (fig. 220) 145.First intercubitus vein normal 149.145. Anterior ocellus normal ; that is, reduced to a cicatrice 146.Anterior ocellus not completely reduced to a cicatrice, lens present,though distorted 148.146. Clypeus bearing pair of small black spots regnata.Clypeus without black spots 147.147. Sixth tergite and sixth sternite maculated perslniilis.Sixth tergite and sixth sternite black hexaspila.148. Lateral .spots on sternites 2-5; apex of sixth sternite yellow TJ-scripta.Lateral spots on sternites 2-4; sixth sternite black arcuata.149. Mandibles slender, teeth reduced to a single vestige; all tergites and allsternites (including apical part of sixth) with continuous fasciae.occidentalis.Mandibles with at least one evident tooth ; maculations of tergites andsternites not as given above 150.150. Labrum unusually long (fig. 215) ; ultimate tergite ruguse (fig. 216)-rugosa.Labrum normal ; ultimate tergite punctate l.ll.22764?29 5
66 PROCEEDINGS OF THE NATIONAL MUSEUM TOi,. 75151. Clypeus black or marked with black 152.Clypeus uot marked with black 173.152. Apical part of the terminal sef,'ment of all tarsi black above ; no black aboveelsewhere on tar.si torosa.Apical part of the terminal .segment of all tar.si not black above; or if .so,then other parts of tar.si also black above 1.53.153. Fasciae on all tergites interrupted medially 106.All or at least .some of the fasciae on tergites continuous 154.154. Anterior metatarsus dilatetl and flattened (tig. 219) 1.55.Anterior metatarsus normal 156.155. Dorsum of propodeum bearing a well-developed fascia borneana.Dorsum of propodeum without fascia palmata.156. Fasciae on tergites 1-5 continuous, or all continuous except that onfifth tergite 157.Fasciae, except that on first tergite (and sometimes that on fifth tergitealso), continuous 168.157. Labrum black or with medial black stripe 158.Labrum not marked with black 159.158. Sides of thorax with conspicuous maculations levis.Sides of thorax black or with only inconspicuous pale maculations velox.159. Scape entirely black 160.Scape with maculation below, sometimes very small 161.160. Scutum with unbroken U-shaped discal mark ; raesopleura bearing large yel-low maculation nigrocornuta.Scutum with pair of discal lines (rarely with broken U-shaped mark) ;mesopleura black or with small spot below wings oculata.161. Second and third steruites with broad fasciae seculata.Second and third sternites with lateral spots (sometimes connected byfine apical lines) 162.162. Frons wider than the eye viewed from iu front ; that is, the frons makesup nioi'e than one-third of the total width of the head 1(33.Frons not wider than the width of tlie eye seen from in front orientalis.163. Posterior orbits very broad and above extended mesad on the occiput be-yond the inner margins of the eyes at the vertex; proboscis when at i-estnot wholly retracted beneath the labrum spiritalis.Posterior orbits not usually broad and not extended beyond the innermargins of the eyes; proboscis when at rest completely retracted be-neath the labrum 164.104. Length 18-20 mm melancholica.Length less than 18 mm 165.165. Fasciae on tergites yellow; first roundly biemarginate on anterior dorsalborder borrei.Fasciae on tergites pale ; first not biemarginate on anterior border.opinabilis.166. Black on clypeus in form of basal spots, entirely separate or united atbase of clypeus ; terminal segment of tarsi without dusky spot above_167.Klack on clypeus a solid band or covering the entire clypeus ; terminal seg-ment of tarsi with du.sky .spot above multipicta.167. Lateral spots on sternites pron)inent and extending along apical margin ofsternite toward midline or joined by apical lines frioensis.Lateral spots on sternites much reduced or lacking ; not connected by apicallines pugillatrix.
ART. O GENEEIC EEVISION OF THE FOSSOKIAL WASrS PARKER 67
](is. Ultimate tergite black '^^'^Ultimate tergite maculated 170.mx Labium black helianthopolis.Labrnm not black opinabilis.170. Small, 17 mm. or less in length 1"*"!.Large, 20 mm. or more in length (African) longipennis.17L Discal mark on scutum in form of broad unbroken U ; maculation ofsixth tergite a pair of lateral spots 172Discal mark on scutum not in form of unbroken U ; maculation of sixth ter-gite an apical spot troglodytes.172. Second sternite wholly yellow; sixth sternite maculated latifasciata.Second sternite with large median black spot ; sixth sternite black laeta.17o. Dorsal border of clypeus at the midline extended upward in the form of anangle whose apex is above the lower level of the insertion of the anten-nae; second sternite uniformly and tinely punctate with a very few some-what larger punctures interspersed bellatrix.Clypeus and second sternite not developed as given above 174.174. Discal mark on scutum in form of U, complete or broken (sometimes onlythe posterior transverse spots remain) 175.Discal mark on .scutum a pair of narrow longitudinal lines 180.17r>. Sixth tergite showing well-developed lateral ridges generosa.Sixth tergite with weakly developed lateral ridges or v.ith none at all__17(>.17t5. Second and third sternites broadly banded with yellow_ 177.Second and third sternites not broadly banded with yellow, but bearinglateral spots : ISO.177. Fasciae on all tergites continuous 17S.Fasciae on all tergites. or on all but the second tergite. interrupted.piraporae.178. Ultimate tergite yellow (bearing a single masculation) 179.ntiniate tergite bearing pair of lateral maculations trepanda.179. Fascia on lirst tergite with pair of black spots almost inclosed; length17 mm latlfrons.Fascia on first tergite showing only broad, shallow, anterior emarginations
:
length 14 mm spatulata.180. Fasciae on all tergites interrupted (on some specimens that on second ter-gite is continuous, but greatly narrowed at midline) insiilaris.Fasciae on tergites usually all continuous (on one species the fa.sciaon first tergite and on another species those on third and fourth ter-gites interrupted) 181.181. Propodeum, especially its lateral angles, covered with long dense pubescence(maculations pale faded yellow) mediterranea.Propodeum showing only normal pubescence 182.182. Length 15 mm. or less 183.Length greater than 15 mm 184.183. Both tergite and sternite of sixth abdominal segment maculated raptor.Neither tergite nor sternite of sixth abdominal segment maculated__fucosa.184. Mesosternum black sayi.Mesosternum maculated IS-^i.185. Sixth tergite black taiwana.Sixth tergite maculated incognita.18t). Fasciae on tergites white or pale primaaestate.Fasciae on tergites yellow _^ 187.
gg PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75
J87. Fascia absent on metanotum 188.Fascia present on metanotum similans.188. Fasciae on all tergites continuous zonata.Fasciae on first tergite always interrupted; sometimes other fa.sciae alsointerrupted muscicapa.BEMBIX REGIA, new speciesFigures 172-178Type (male).?Black: labrum except median stripe; mandibles,except tips ; narrow apical border and lateral spots on clypeus ; smallspot on scape below; small round spot on either side of anteriorocellus ; minute spot between antennae ; posterior orbits broad below,narrow above; posterior border of pronotum; sides of protlioraxalmost entirely; narrow lateral line on scutum above base of wings;curved, interrupted fascia on posterior border of scutelluni; inter-rupted fascia on metanotum; curved fascia on propodeum, broadeston posterior surface; lateral angles and almost entire sides of pro-podeum; large spot on metapleura; mesopleura and mesosternumalmost wholly; widely separated lateral spots on first tergite, broadat lateral end and narrowed to a point at dorsal end; continuousfasciae on tergites 2-4, that on second alm.ost inclosing a pair of discalspots, those on third and fourth biemarginate on anterior border;lateral spots on tergites 5 and 6; lateral spots on sternites 2-5;legs except black line above on anterior femora, black line below andbroken line above on anterior tibiae, black spot above at base of theother tibiae and black spot below on each segment of anterior andmiddle tarsi; yelJovx On some i:)arts of the body the yellow has agreenish tinge and the doi^al part of the tergal fasciae is pale.The antennae are stout, the scape being unusually thick and heavy.Segments 9-11 of the flagellum are broadened and flattened belowbut are not much excavated, the surface being only slightly concave.The apical segment is rounded, slightly curved and truncate at theapex. The spines of the anterior metatarsus, of which one bearsseven and the other six, are peculiar in form, most of them, but notall, being broad, flat, and stout (fig. 177). The intermediate femoraare dentate, each bearing at the base a single stout spine and apicalto this a series of very small spines. The middle tibia on its innerside shows a slight swelling at the apical end. The middle meta-tarsus is strongly curved and compressed. Below at its proximalend is a slight protuberance covered with fine stiff hairs and theanterior border at the apical end is developed into a broad, thin,wedgelike process (fig. 174). This is true also of the second seg-ment, and to a less degree of the third. The second sternite bears a
ART. 5 GENEEIC REVISION OF THE FOSSORIAL WASPS PAItKER 09prominent carina and the sixth a very narrow median process, whoseventral surface is concave and whose apex resembles a carina. Itdoes not reach the apex of the sternite. The seventh sternite bears amedian carina. The sides of the seventh tergite are gently sinuateand the apex is broad and round. Lateral ridges are present but notat all prominent. The eighth sternite ends in a relatively short,curved, hirsute spine that, near its middle, is much dilated along itsdorsal margin (fig. 178).AUotyjje (female).?Black: narrow dorsal border and broaderlateral borders of labrum; very narrow border and narrow lateralstripe on clypeus; pair of small spots betAveen antennae; pair ofrounded spots near anterior ocellus; trace of anterior orbits oppositeantennae; posterior orbits broad below, narrowed and shortenedabove; posterior border of pronotum; side of prothorax, except largelateral spot that covers much of the tubercle; narrow lateral linesand narrow, transverse discal line on scutum; narrow fascia oqposterior border of scutellum; narrow fascia on posterior border ofmetanotum ; curved fascia on propodeum, widened and interrupted onits posterior surface; spot on posterior lateral angles extended toform an interrupted fascia on ventral part of posterior surface ofpropodeum; vertical anterior stripe on side of propodeum; meta-pleura almost entirely; triangular spot with longer leg vertical andshorter leg longitudinal on mesopleura; widely separated lateralspots on first tergite ; fascia on second tergite, notched at midline onanterior border, broadly emarginate on median posterior dorsalborder, and enclosing a pair of elliptical black spots ; fascia on thirdtergite similar to that on second but with emarginations representingthe discal spots; narrow, interrupted fascia on fourth tergite; smallwidely separated lateral spots on fifth; small lateral spots on ster-nites 2-4; line above and below on femora; tibiae, except black lineabove and below; and tarsi, except black spot below on anteriormetatarsus ; yelloic.The flagellum is black with a fuscous line below on all segments.The wings are slightly and uniformily infumated. The anteriormetatarsus bears six broad, black spines whose dorsal surface is con-cave. The disk of the second sternite is smooth and shining andbears scattered coarse punctures. The sixth tergite is roundly tri-angular at the apex and is densely punctate except at the extremeposterior end. The labrnm bears a distinct longitudinal carina thatbroadens near the apex where it is distinctly grooved (figs. 172, 173).The paratype differs but slightly from the allotype : the clypeus,frons, and labrum have less yellow on them and the carina of thelabrum is less conspicuous at the base.
70 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75Lentjth IT mm. Described from a male bearing the label " Neii-Kamerun No. 218-21 Te.ssmann S. S.," and two females with the label,
'?Leubo Congo, D. W. Snyder."'Type.?In the Zoologisches Museum der Universitat, Berlin.Allotype.?<: Hi. No. 40837, U.S.N.M.BEMBIX MIMA HandlirschFigures 134-137Bemhcx mima II.wdlirsch. Sitz Akad. Wissensch. Wien, Math. -Nat. CI., vol.102, 1893, p. 795.?Dalla Torre. Cat. Il.vm., vol. 8. 1897, p. .508.Of this species I have before me two specimens, a male bearingthe label "Mexico, Districto Federal, J. R. Inda, Collector," and afemale bearing the label, " Guadalajara, Jalisco, Mex., IX, 14, Mc-Clendon." This species is distinguished by the presence on bothsexes of a prominent madian transverse notch on the labrum and ofa well-defined apical pygidial area on the last tergite, set off byshort but evident lateral ridges. Handlirsch described this speciesfrom a single female and I am therefore giving below a detaileddescription of these two specimens.31ale.?Black: Labrum; mandibles, except tips; clypeus, exceptnarrow basal border ; scape below ; spot between antennae ; broad butshort anterior orbits; broad posterior orbits narrowed and abbrevi-ated above; spot on side of prothorax; fascia on posterior border ofprothorax including tubercles but interrupted dorsally at midline;narrow lateral line on scutum above base of wings; narrow curvedfascia enlarged laterallj^ on scutellum; narrow curved fascia onmetanotum; spot on metapleura; fascia on first tergite broken intolateral spots and median dorsal spot ; fasciae on second and thirdtergites interrupted medially and emarginate on anterior 'border oneither side the middorsal line; fasciae on fourth, fifth, and sixthtergites broken into spots; large median spot on apex of seventhtergite; small lateral spots on second sternite; anterior border offemora of first pair of legs ; anterior distal end of femora of secondand third pairs; all tibiae, except black line on posterior border; andtarsi; yelloio.The female closely resembles the male but with the maculations alittle more extensive. The black on the clypeus is restricted to apair of small spots; there is a broken U-shaped discal mark on thescutum ; a broad interrupted fascia on the propodeum and a spot onits side ; the mesopleura almost entirely yellow ; and lateral spots onsternites 2 and 3. In other respects the maculations are very similarto those on the male.
ART. 5 GENERIC REVISION OF THE FOSSOEIAL WASPS PARKER 71The flagellum is black above, yellow or ferruginous below, andsegments 8-11 of the male are somewhat prominent on their posteriordistal border but can not be termed spinose. The labrum bears aprominent, transverse median notch whose lower border assumessomewhat the form of a tooth. The sixth tergite of the female andthe seventh of the male bear an evident apical pygidial area set offby short lateral ridges. The anterior metatarsus is provided witheight spines. The infumation of the wings is slight, although alittle more evident in the female and a little more uniform than inthe male. The pubescence is short and fairly dense on the head,thorax, and propodeum; gray on the head, sides of thorax, and onthe propodeum; brownish on the scutum. The posterior border ofthe middle femur of the male does not bear evident teeth or spines.The second sternite of the male bears a prominent median processand the sixth a conspicuous, short, median tooth bluntly rounded atthe point. The genital stipes is distinct in form as shown in Figure136. BEMBIX TAIWANA BischoffBtmbex taiu-(inu Bischoff, Deutscli. Ent. Zeitschr., Heft., 7, 1913, p. 712.Of this species I have before me a male and a female identifiedby Bischoff. The pubescence on the head, thorax, and propodeumof the male is almost white, not unusually long but unusually dense,especially on the scutum. The scutum, except for very inconspicu-ous lines above the base of the wings, is entirely black ; the scutellunibears a narrow fascia; the maculations of the metanotum. thepropodeum, and the sides and venter of the thorax are so extensiveas to render these parts almost devoid of black. The color is a pale,clay-colored yellow. The tergites are wholly of this color, the first,second, third, and fourth each bearing a pair of much reduced, trans-verse, black spots or lines. Segments 10 and 11 of the flagellumbear prominent excavations, and 7-9 are somewhat spinose. Theposterior border of the middle femur is smooth but is much com-pressed and wedgelike. The second sternite shows only a trace ofa carina and the sixth a low, roundly-pointed, triangular prominence.The seventh tergite is deeply emarginate at the apex and at thebase there is a pair of short but distinct lateral ridges whose posteriorends do not form spines or sharp angles.The color on the female is a more decided yellow. The scutumbears a pair of posterior, median discal marks ; the fascia on thescutelluni is interrupted ; and the yellow on the metanotum anddorsum of the propodeum is less extensive than on the male. Theside of the thorax and tlie propodeum are similar to those of themale. The fasciae on the tergites are less extensive than those on
72 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75the male, leaving a black posterior border on each tergite. Thesixth tergite is black and the maculations on sternites 2-5 are re-duced to lateral spots. The two specimens bear a common label,
" S. Formosa, Taihanroku, 3.-10. VIII. 08, Sauter."BEMBIX FUCOSA, new speciesFigures 104-106Tyfe (male).?Black: labrum; mandibles, except tips; clypeus;frons below anterior ocellus, except pair of large black spots ; scape,except spot above; anterior orbits deflected inward and interruptedat anterior ocellus; posterior orbits broad below, narrow above;prothorax almost wholly; broad lateral lines and broken U-shapedmark on scutum; narrow fascia on posterior border of scutellumenlarged laterally; fascia on metanotum; prominent curved fasciaon posterior and dorsal surface of propodeum ; lateral angle and sideof propodeum; metapleura and mesopleura almost entirely; fasciaeon tergites 1-5 continuous, on G interrupted; first fascia narroweddorsally and bisinuate dorsally on anterior border ; second inclosinga pair of elliptical black spots and deeply and acutely emarginateon posterior border at dorsal midline; third similar to second butwith dorsal elliptical spots not entirely enclosed; fourth and fifthbisinuate on anterior margin and very deeply and acutely emargi-nate on posterior margin at midline; lateral spots on sternites 2-5,those on sternites 2 and 3 almost united by apical prolongations ; legs,except black anterior spot on middle and posterior coxae, black spoton trochanters, black line above on anterior femur, and black spotbelow on all tibiae ; creamy white or tright yellow. The maculationson the head (except the frons in part and the lower part of theposterior orbits), the posterior line on scutum, fasciae on scutellumand metanotum, and the dorsal part of the fasciae on the tergitesare pale, creamy white. The longitudinal discal lines on the scutumand the lower part of the large spot on the mesopleura are decidedlyrufous. Elsewhere the maculations are yellow.The antennae are dark above, fuscous below. Segments 7-10 ofthe flagellum are dilated and obtusely prominent on posterior margin.Segments 9-11 are excavated below and segment 12 is flattenedtoward the apex, roundly pointed and strongly curved. The middlefemur is dentate below. The second sternite bears a prominent, com-pressed, bluntly pointed process. The process on the sixth sternite ispeculiar in that its base is a transverse swelling, from the medianpart of which a carina, broad at base but narrowed to an edge atapex, extends in a curve to the apical margin of the sternite. Theseventh sternite is strongly carinate on midline. The seventh tergitebears conspicuous lateral ridges and is roundly pointed at the apex.
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 73The allotype (female) in the character of its maculations differsbut little from the type. The anterior orbits are not interruptedand are continuous with the posterior orbits; the U-shaped discalmark on the scutum is broader and unbroken; the fasciae on thetergites are all continuous, broader than on the type, and bothsecond and third inclose paired black spots. The yellow of themaculations is more intense than on the type, only the clypeus,frons, and labrum showing evidence of creamy white. Like thetype, the discal mark on scutum and the spot on mesopleura showa strong rufous coloration. The disk of the second sternite is smoothand shining and bears scattered coarse punctures. The sixth sterniteis slightly carinate.The wings in this species are hyaline, and the second abscissa of thecubitella is absent or rudimentary. The pubescence is of normalcharacter. The anterior metatarsus bears seven spines. The fronsbetween the antennae and the basal part of the cl}^eus are carinate.On one female paratype the fascia on the first tergite bears a pair ofrounded black spots and on one male paratype the fascia on thefifth tergite, as well as that on the sixth, is interrupted at midline.Length 15 mm. Described from three males and four females, ofwhich number six bear the label " Ober-Burma, Mandaiay, 26. 8. 00,Coll. Bingham." The seventh (a female) bears the same label butwith the date reading " 2. 9. 00."Type.?In the Zoologisches Museum der Universitat, Berlin.BEMBIX LOUPATA, new speciesFigures 123-126Type (male).?Black: labrum; mandibles, except tips; clypeus,except pair of small black spots; frons between antennae; pair ofsmall spots on frons near anterior ocellus; scape below; broad butshort anterior orbits; posterior orbits narrowed above; posteriorborder of pronotum; side of prothorax, except black spot that in-cludes most of tu]>ercle; small lateral spot on scutum above base ofwings ; fascia on scutellum reduced to narrow widely separated lines
;
narrow elongated spot on mesopleura; fascia on first tergite inter-rupted and parts narrowed to a point at mid-dorsal line ; fascia onsecond broad laterally, widelj'^, and deeply emarginate (the emargi-nations prolonged to right and left) and acutely notched on anteriorborder and slightly emarginate at midline on posterior border;fasciae on third and fourth tergites similar to that on second butwith emarginations less pronounced; that on fifth tergite broad andonly slightly narrowed at midline; that on sixth also broad andalmost interrupted at midline; lateral spots on sternites 2-6 con-nected by apical lines, except those on sternite 6; femora, except
74 PROCEEDINGS OF THE NATIONAL MUSEUM tol. 75above and below basally ; tibiae, except spot below on anterior pairand basally above on all ; and tarsi ; pale loith a tinge of yellow on thelabrum and on the lateral portions of the tergal fasciae. The anteriorpart of the apical lines connecting the lateral sternal spots is tingedwith ferruginous.The flagellum is dark above, lighter below, and at the apex takeson a ferruginous appearance. Segments 9, 10, and 11 are slightlyexcavated below, and 7 and 8 are spinose. The ultimate segment isslightly curved, somewhat flattened and pointed at the apex. Themiddle femur below is beset Avith several sharp-pointed teeth that arelongest near the apex of the femur, Avhich on its posterior surfacebears a distinct longitudinal depression or gi'oove. The secondsternite bears a long, low, thin carinalike process that ends in a bluntpoint. The sixth sternite is peculiar in that it bears a median tri-angular swelling that can not be termed a process, since its apicalpart slopes smoothly to the apical margin of the sternite, whichshows a slight median apical emargination. The seventh sterniteshows a prominent median carina and is distinctly notched at theapex. The seventh tergite on either side bears a distinct lateral ridgewith an emargination producing a lateral angle and bears within thisangle several short spinelike hairs. The apex of the tergite is rela-tively broad and roundly truncate.Allotype (female).?Black: labrum; mandibles, except tips; apicalborder of clypeus; spots on frons; scape and flagellum below; anteriorand posterior orbits; apex of sixth tergite; sixth sternite; fasciaejoining lateral spots on sternites; legs except basal segments and moreor less of the basal part of all femora ; ferruginous. Narrow line onposterior border of pronotum ; posterior part of tubercle ; narrowfascia on posterior border of scutellum ; narrow fascia on metanotum
;
narrow abbreviated fascia on propodeum ; small spot on lateral anglesof propodeum; continuous fasciae on tergites 1-5: first narrowedmedially; second inclosing pair of dorcal blacl>*spots ; third, fourth,and fifth biemarginate on anterior dorsal border and acutely sinuateat mid line on posterior border; and lateral spots on sternites; jmle.Traces of yellow are seen on the labrum, on the extreme lateral por-tions of the tergal fasciae and on the tibiae. The sixth sternite iscarinate on the mid line and the sixth tergite, which is narrow androunded at the apex, is covered with si^inelike haire A'ery prominentlaterally at the base.Length 14-lG mm. Described from three specimens. The type andallotype bear the label, " Deutsch Ost Afrika, Kanoga, Fr. MuUer S."A second female, which I have referred to this species, bears the label,
" Victoria-Nyansa, I. Ukerewe, Conrads S. G." This differs from theallotype in having the labrum light yellow, the abdominal fasciaebrighter with a creamy yellowish tinge. The ferruginous fasciae
ART. 5 GENERIC KEVISION OF THE FOSSORIAL WASPS PAEKER 75
connecting the lateral sternal spots are much obscured and the pro-podeum is wholly black.Tyye (male).?In the Zoolo<^isches Museum der Universitat, Berlin.BEMBIX RESIDUA, new speciesFigs. 184-186Type (male).?Black: labrum; mandibles, except tips; clypeus,except pair of large basal black spots; scape below; frons betweenand above insertion of antennae, except pair of narrow vertical linesbetween antennae; broad, short anterior orbits; posterior orbits nar-rowed above; posterior border of pronotum; side of prothorax almostentirely; spot on tegula ; small lateral spot on scutum at ^jase ofwings; small lateral spots on scutellum : fascia on anterior border ofmetanotum not reaching its lateral margins; broad curved fascia ondorsum and posterior surface of propodeum ; lateral angles and nearlythe entire sides of propodeum; metapleura ; mesopleui'a, except blackspot behind tubercle and another in front and above middle coxa;mesosternum ; verj^ broad fasciae on tergites 1-6; fascia on firsttergite broadly and shallowly bisinuate on anterior dorsal margin andmore deeply and more acutely bisinuate on posterior dorsal margin;
.second and third fasciae each inclosing a pair of narrow, elongated,elliptical dorsal black spots and somewhat irregular on dorsal margin;fourth and fifth each biemarginate on anterior dorsal border andslightly emarginate on posterior border at midline; sixth slightlybisinuate on anterior border, slightly emarginate at midline on pos-terior border, and shortened laterally; seventh tergite, except basallateral black areas; lateral spots on sternites 2-6; legs, except spotbelow on posterior coxae, spot on all trochanters, line above on allfemora, line above and below on all tibiae, and spot below on eachsegment of all tarsi ; pale or soiled yeJlowhh loklte.The flagellum is black and segments 8 and 9 are spinose.Segments 10 and 11 are excavated below and are somewhat dilated.Segment 12 is very slightly curved and is rather sharply pointed atthe apex. The frons between the antennae and to a less extent thebasal part of the clypeus are carinate. The anterior metatarsus isprovided with six spines, of which the proximal one is quite small.The middle femora are weakly serrato-dentate. The process on thesecond sternite is a low median carina ending posteriorly in a shortblunt point. The sixth sternite bears a low broadly triangular,obtusely pointed process and the seventh is strongly carinate on themidline. The seventh tergite, which is slightly sinuate laterally,truncate apicall3% and slightly emarginate at apical midline, bearsshort but evident lateral ridges. The wings are very slighth' butuniformly infumated. The pubescence is short, dense, and gray on
76 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75head, thorax and propodeum, except on the scutum and scutelhim,where it is unusually short and brown in color. The sixth tergite,and to a less degree the fifth and fourth also, are covered with rela-tively long black pubescence. The inner eye-margins are slightlydivergent at the clypeus.This species stands close to B. taiwana Bischoff from which itdiffers in the character of its maculations, in the character of thepubescence on the scutum, and in the better development of theprocesses on sternites two and six.Length 22 mm. Described from a single male bearing the labels,
"China, Tsha-jiu-san, V.-VI. 12, Mell S. V.," and " Berggebiet i.N. V. Kuangtung, Bambuswald, ca. 1400 m Hoch."Typ^.?In the Zoologisches Museum cler Universitat, Berlin.BEMBIX RECURVA, new speciesFigures 165-168Type (male).?Black: lateral borders of labrum; narrow apicalband and extreme lateral borders of clypeus; short anterior orbitsbroadened just above insertion of antennae; broad posterior orbits,narrowed above and not extended to vertex ; spot on side of pothoraxextending to tubercle; median bilobpd spot on posterio-dorsal sur-face of propodeum; lateral angles of propodeum; spot on anteriorpart of mesosternum ; broad fascia on first tergite enclosing a roundblack spot near anterior margin on left side of midline and havinga broad rounded anterior emargination on right side; broad fasciaon second tergite inclosing pair of elliptical dorsal spots; narrowfascia on third tergite greatly shortened at the side; pair of lateralspots on second sternite; femora in part; tibiae, except line above onfirst pair and line below on second and third pairs; tarsi, exceptapical part of terminal segment of all pairs and posterior border ofmetatarsus of first pair ; yellow.The flagellum is black above but not wholly so below, and segments7, 8, and 9 are slightly spinose. Segments 10, 11, and 12 are slightlyexcavated, and 12 which is as long as 10 and 11 combined, is curved,and is also narrowed toward the apex, which is roundly pointed.The posterior border of the middle femur is somewhat undulate andnear its distal end bears two blunt rounded teeth. The secondsternite bears a weakly developed median process and the sixth awell-developed, narrow, flattened, bluntly pointed process that ex-tends slightly beyond the apex of the sternite. The seventh tergiteis broadly and bluntly rounded at the apex. It is slightly sinuatelaterally and bears a pair of lateral ridges that stand out prominentlywhen the tergite is viewed from the side.
AUT 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 77Allotype (female).?Black: extreme apical, lateral angles ofclj'peus; spot below on scape; spot on either side anterior ocellus;obscure yellow. Posterior orbits not reaching vertex; narrow linebelow tubercle on prothorax; fascia narrowed laterally on posteriorsurface of propodeum; lateral angles of propodeum; broad fascia onfirst tergite with broad, shallow, median anterior emargination;fascia on second tergite inclosing a pair of elliptical dorsal black
.-pots; small lateral spots on second sternite; femora apically in part;anterior surface of anterior tibiae ; outer surface of middle and pos-terior tibiae; hnght creamy yellow. The yellow of the tarsi is ob-scured by brownish or ferruginous. The posterior surface of theanterior metatarsus, as in the type, is black. The sixth tergite isbluntly rounded at the apex. The sixth sternite bears numerouscoarse punctures, especially near the apex, among which are manyvery fine punctures. The second sternite is slightly carinate on themidline, shining and provided with scattered coarse punctures.The wings in this species are hyaline and the pubescence is very?hort and inconspicuous. The posterior lateral angles of the propo-deum are unusually prominent in this species, giving the posteriorsurface of this segment somewhat the shape and appearance found inthe genus Bicyrtes.I have assigned to this species two other males that differ markedlyfi'om the type in the extent of their maculations. On each of thesethe labrum is wholly yellow; the clypeus bears only a small pair ofblack spots; the prothorax is almost wholly yellow; there are lateralspots on the scutellum, a fascia on the metanotum, a curved fasciaon the propodeum, and a small spot on the mesopleura. On one thereare broad fasciae on the first six tergites, the second inclosing blackspots, whereas on the other the fasciae are limited to the first threetergites, the second fascia inclosing black spots. I have placed thesespecimens in this species in spite of the fact that they differ gowidely in the extent of their maculations and are slightly larger insize, because I can find no essential difference in the morphologicalcharacters of the three males and because no two of them agree inthe extent of their maculations.Length, 22 mm. Described from three males and one female. Thetype ^ and allotype are from Neu-Kamerun, collected by Tessmann.
5 Tlio specimen designated as the type of this species is in bad condition. When receivedfor study the sixth and seventh abdominal segments were completely retracted so thatthe specimen had to be relaxed before it could be studied. At some previous time it haddecoiiipo.>--ed to such an extent that not only ha.?i the color faded but as soon as it wasrelaxed it fell into pieces and had to be reassembled after the genitalia had been extractedand the terminal abnominal segments extended. After the description had been writtenthe genitalia of the type, through an unhappy accident, was lost, but not before theauthor had made a careful comparison of the genitalia of the type and paratypes andassured himself that there were no differences between them di.scornible.
78 PROCEEDINGS OF THE NATIONAL MUSEUM vol. T')The two paratypes (males), collected by Riggenbach, bear the follow-ing labels : The one, " Kameriin int. Garua." and the other, " KamerunTsad-See a. Benne iinterh. Garua."Type.?In the Zoologisches Museum der Universitat, Berlin.BEMBIX LEVIS, new speciesFigures 116-118Type (male).?Black: labrum: mandibles, except tips; clypeas,except a pair of elliptical spots; scape below; spot between and aboveantennae; broad anterior orbits shortened above; posterior orbitsnarrowed above; posterior dorsal border of prothorax; sides ofprothorax almost entirely; spot on tegula; narrow line on scutemabove tegula; curved fascia on posterior border of scutellum; narrowfascia on posterior border of metanotimi; broken fascia on dorsumof propodeum ; lateral angles and spot on sides of propodeum ; nar-row line on metapleura; large spot almost divided into two onmesopleura; continuous fasciae on tergites 1-5, first deeply sinuateon anterior median margin, second inclosing almost completely apair of dorsal black spots and emarginate on posterior median border,remainder bisinuate on anterior border and emarginate on posteriormedian border; obscure spots on tergite six; lateral spots onsternites 2-4; spot on coxae; femora in greater part; tibiae, exceptlines below and on posterior border; tarsi, except terminal segmentof each; white with a slight tinge of cremny yellow in some places.The flagellum is black and segment seven is bluntly but (piite evi-dently spinose. Segments 9-11 are slightly excavated and segment12 is flattened, distinctly curved, and roundly truncate at the apex,which is ferruginous in color. The intermediate femora are notconsidered serrate or dentate, although the apical end of the posteriorborder is slightly roughened. The middle tibiae and tarsi are normal.The anterior metatarsus bears six spines. The second sternite (onthe type) bears an evident median carina that does not end in aprocess or spine. The second sternite of the male paratype bears alarge, curved, sharply pointed process whose ventral surface is slightlyconcave. The seventh sternite is carinate on midline. The seventhtergite is deeply sinuate on either side apically, causing the tergiteto end in a blunt point (fig. 118).The allotype (female), though resembling the type closely, differsin maculations as follows : The labrum and cljq^eus are black, exceptnarrow lateral borders; the scape is wholly black; spot at the insertionof antennae is much reduced; the scutum bears a broken U-shapeddiscal mark; the fascia on the propodeum is complete; the fasciaon the second tergite (and probably that on the third, which is muchretracted) bears a pair of completely inclosed discal spots; fascia
ART. 5 GP:NERIC revision of the FOSSORIAL wasps PARKER 79
on fifth tergite is interrupted at midline; the spots on the sides ofthe thorax and propodeuni are better developed; and the color ingeneral is slightly more yellowish.The wings on both sexes are hyaline and relatively long. Thepubescence is short, white and sparse. The disk of the second sterniteof the female is shining and bears numerous coarse punctures. Onthree of the female paratypes the fascia on the fifth tergite is con-tinuous, and on two the scutum bears only the transverse posteriordiscalmark. On some the fascia on the third tergite incloses a pairof black discal marks.Length 15 mm. Described from two males and five females fromAfrica. These specimens bear labels as follows : Type and allotype,
'? Neu-Kamerun, No. 15o-G7, Tessmann S. G." ; male paratype, " Belg.Kongo, Duma, Ubanga-Dist., Dr. H. Schubotz leg., 20, X. 1910.";two females paratypes, the label, "Bosun, 545, 22.4.14, Tessmann.";another, the label, '' Kamerun, Tsad-See, Garua, 21. VIII. 1909.Riggenbach S. G."; and the fourth, the label, " Kamerun, SchaferS. G."Tyfe.?In the Zoologisches Museum der Universitat, Berlin.BEMBIX OPIKABILIS. new speciesFigures 14&-152Type (male).?Black: labrum; mandibles, except tips; clypeus,except small pair of black spots; space between antennae extendingupward; pair of spots near anterior ocellus; scape below; anteriororbits shortened above; narrow posterior orbits; narrow posterioi-border of pronotum and side of prothorax, except large irregular blackspot extending into tubercle ; narrow lateral line on scutum above baseof wings; narrow fascia on posterior border of scutellum; narrowfascia on metanotum; large posterior spot and narrow anterior verti-cal line on side of propodeuni; spot on metapleura; long verticalspot on mesopleura; broad continuous fasciae on tergites 1-6, firstnarrowed medially, second inclosing pair of black spots, third almostcompletel}^ inclosing pair of black spots, the others biemarginate onanterior border and all fasciae to a greater or less degree sinuate onposterior median border ; lateral spots on sternites 2-6 ; femora, exceptspot at base below and line above on all ; tibiae, save line above andbelow on all; and tarsi; pale or light yellow. The labrum, the lateralspots of thorax and propodeuni, the lateral sternal spots, and the legsshow a preponderance of yellow.The flagellum is black above, light below, the ultimate segmentbecoming ferruginous at the apex. Segments 6, 7, and 8 are spinosebelow, but the spines are not conspicuous; segment 5 is prominentbelow but not spinose. Segments 9-11 are slightly excavated below
80 PROCEEDINGS OF THE NATIONAL MUSEUM tol. 75and segment twelve is curved, flattened toward the apex, which isbhintly rounded. The middle femur below near the apex is slightlyroughened but can not be said to be dentate. The second sternitebears a median sharp-pointed process and the sixth a small wedge-shaped process whose apex does not extend to the apical border ofthe sternite. The seventh bears a median carina. The seventh ter-gite is coarsely punctuate and bears distinct lateral ridges but showtneither lateral angles nor lateral spines. It is sinuate laterally andis broadly rounded at the apex, which is slightly emarginate atmidline.Allotype (female).?Black: labrum; mandibles, except tips; cly-peus, except pair of large black spots; pair of small spots on fronsnear vertex ; broad anterior orbits shortened above ; posterior orbits
;
sinuate fascia on posterior border of pronotum; side of prothorax,except irregular longitudinal spot which includes anterior part oftubercle; narrow lateral line above base of wings and broken trans-verse posterior discal mark on scutum; narrow fascia on posteriorand lateral margins of scutellum; narrow fascia on metanotum;narrow curved fascia on propodeum, extended, enlarged, and inter-rupted on its posterior surface ; spot on lateral angle and larger an-terior spot on side of propodeum; spot on metapleura; large spoton mesopleura; continuous fasciae on tergites 1-5, first much nar-rowed medially, second inclosing pair of black spots and deeplyemarginate at anterior midline, third inclosing pair of black spots,fourth and fifth biemarginate on anterior border and together withthe second and third all strongly sinuate at posterior median border
;
lateral spots on sternites 2-5 extended inward but not forming con-tinuous apical lines; femora in part; tibiae, except line above andbelow on all ; and tarsi ; pale or soiled white.The flagellum is black above, ferruginous below, becoming muchlighter in color toward the apex. The second sternite is shiningand bears numerous coarse punctures scattered over tlie disk, andthe sixth is coarsely punctate and distinctly carinate mediall}' on itsapical half. The sixth tergite is slightly sinuate laterally and muchnarrowed toward the apex, which is roundly pointed.The wings of this species are hyaline and the second abscissa ofboth radiella and cubitella is present. The pubescence on head,thorax, propodeum, and base of abdomen is long, dense, and whitishin color. The frons between the antennae and the base of the cly-peus are distinctly carinate. Of the female paratypes, two differfrom the allotype in having a pair of narrow discal lines in additionlo the broken transverse line on the scutum; while a third differsin having no discal mark on the scutum and in having the fascia on
AKT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 81the scutelliim and the fascia on the first tergite interrupted at themidline.Length 15-17 mm. Described from four males and four females.The type, allotype and three male paratypes bear a common label:"D. O. Afrika, Kagera, Haobert S. G." Of the female paratypeseach bears a different label : " Chinchoxo, Falkenstein S " ; " D. O.Afrika Kiwugebiet, Dr. Kandt S"; and " D. O. Afrika, 50 klm.ostl. V. Kosongo Urwald Grauer."Type.?In the Zoologisches Museum der Universitat, Berlin.BEMBIX MAGDALENA C. L. FoxFiGXJBES 127, 12SBemhix magdaJeiui C. L. Fox, Proc. Cal. Acad. Sci., vol. 15, 1926, p. 220.This is an unusually well-marked species. The labrum is abnor-mally long and the maxillae are longer than the labrum, extendingbackward well beyond the coxae of the anterior legs. In this elonga-tion of the maxillae this species resembles those belonging to thegenus Steniolia. The ocelli are not entirely obliterated. At thebase the seventh tergite bears prominent lateral angles that are pro-duced into short, blunt spines, and the apical portion of the tergiteis strongij' rugose. The first cubital cross vein is almost straight.The sixth sternite bears a broad median process whose posteriorend terminates in two blunt prominences with a slight depressionbetween them.Fox describes this species from males taken at Magdalena Bay,Lower California, May 30, 1925, by H. H. Keifer.BEMBIX BroENTATA Van der LindenBembex bidentata Van der Linden, Nouv. Mem. Acad. Sci. Bruxelles, vol. 5,1829, p. 11.
?
Handlibsch, Sitz. Akad. Wissensch, Wien, Math.-Nat.CI., vol. 102, 1893, p. 773.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. .^02.The male of this species is well marked. The last three segmentscf the antenna are excavated below; the anterior metatarsus bearsseven spines ; the posterior border of the middle femur is compressedto a thin edge whose apical half is dentate; the second and sixthsternites are without tubercles; and the seventh tergite is withoutlateral ridges but is provided at the base with prominent lateralspines. The propodeum and the metathorax are black and themesothorax is almost wholly black. The fascia on the first tergiteIS widely interrupted; those on 2-4 are continuous; that on tergite5, continuous or broken into three spots. The sixth bears a singlecentral maculation and the apex of the seventh is maculated.227&4?29 6
g2 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75I have at hand two males identified by Mercet and bearing thelabel, "Los Molinos [Spain], G. Mercet." This species is widelydistributed throughout the Mediterranean region.BEMBIX TENUIFASCIATA, new species
1Figures 204-206Type (male).?Black: labrum; mandibles, except tips; clypeus,except pair of large basal spots; scape below; spot between antennae;very short, broad anterior orbits ; posterior orbits, very broad below,narrowed to a point and not reaching vertex above ; posterior borderof pronotum; side of prothorax and posterior half of tubercle;curved fascia on posterior part of scutellum continued forwardlaterally on scutum at base of wings, and narrowed and interruptedon midline; narrow interrupted fascia on metanotum; curved fasciaon propodeum, broadest on posterior surface; lateral angle andalmost the whole side of the propodeum; large spot on metapleura;large triangular spot on mesopleura; narrow interrupted fasciae ontergites 1-6, the first more widely interrupted than the others, allof which are bisinuate dorsally on the anterior margin, and second,third, and fourth are slightly sinuate laterally on posterior margin;continuous fasciae on posterior border of sternites 2-Jt; minutelateral spots on sternite 6 ; legs, except black lines on all femora andtibiae, and the black terminal segment on all tarsi ; yellow.The flagellum is black. The tenth, eleventh, and twelfth seg-ments are excavated below but none are spinose. The middle femoraare plain. The apical segment of each tarsus is black and the othersegments of the tarsi show a greater or less degree of dark colorbelow. The second sternite is plain and the sixth shows a moderatetransverse swelling or elevation not sufficiently prominent to becalled a process or tubercle. The seventh tergite at its base bearslateral spines similar to those borne by hidenfafa.The allotype (female) in color and the character of the macula-tions is almost exactly like the type. It differs in that the pair ofsmall lateral spots on the scutum at the base of the wings are moreprominent; the fasciae on tergites 2 and 4 are continuous and theone on the fifth tergite is more widely interrupted than the one onthe first; and the tarsi do not show the black markings seen on thetype.The wings in this species are slightly and uniformly infumated.The pubescence is short and relatively sparse. The anterior meta-tarsus is provided with seven spines. The disk of the secondsternite of the female is smooth and shining and bears numerouscoarse punctures, and the sixth is carinate on midline.
AU1. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 83Length 16 mm. Described from two specimens, one male andone female, each of which bears the label, '* W. Afrika, Lagos, Coll.Bingham."7'l/pe.?In the Zoologisches Museum der Fniversitat, Berlin.BEMBIX MOBII Hand'iirschJiembex tnobii Haxdlirsch, Sitz. Akad. Wissenscli. Wien, Math.-Nal. CI., vol.
? 102, 1893, p. 775.?Dalla Torre, Cat. Ilyni., vol. 8, 18!)7, p. rjOS.I have before me a single male that I have doubtfully referred tothis species. With regard to the structural characters of the antenna,the middle femur, the seventh tergite, the second and sixth sternites,the wings, and the genitalia, it agrees quite well with Handlirsch'sdescription of mohii, but with respect to the maculations it show^sconsiderable difference. The flagellum is ferruginous, darker abovethan below, and A^erv dark, though hardlv black, ^at the apex; thescutum, scutellum, metanotum, propodeum, metapleura, and meso-pleura (except a minute spot below the wings) are entirely black;the fascia on the first tergite is greatly narrowed and widely inter-rupted, those on tergites 2 and 3 are much broader and are narrowlyinterrupted at midline, while those on 4 and 5 are still broader andare continuous; the lateral spots on sternites 2-5 are large and areunited by apical lines ; and sternite 6 is ferruginous and bears a pairof small yellow lateral spots. In the absence of any significant struc-tural differences between this foi'm and the male of niohil^ I havechosen to consider it simply a variant of that species, though furthercollection and study of material may show that it belongs to a dif-ferent species. The specimen bears the lal>el. " Bosum. 22-4^14.Tessmann.*' BEMBIX STENEBDOMA ParkerBembis stenehdoma Pakker, Proc. U. S. Nat. Mu.s., vol. 52, 1917, p. 79 (Key).Bembix stenohdonw Parkek, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 94 (descrip-tion of species).The spelling of the specific name with an " o "' in the text insteadof an '"e," as in the key and in the explanation of the figures illus-trating the species, is simply a typographical error. The specificname is derived from two Greek words meaning "' narrow " and
'' seventh,'' descriptive of the character of the .seventh sternite, and(he spelling stenehdoma is the correct one. The seventh tergite bearsdistinct lateral emarginations, thus giving rise to distinct rotmdlypointed lateral angles. This feature was omitted from the originaldescription.The species is known only from the type (a male) in the collectionof the Academy of Natural Sciences of Philadelphia. It was takenat Florence, Ariz.
84 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. T',BEMBIX MEDITEKRANEA HandlirschBeinhex meditcrraiica Handlirsch, Sitz. Akad. Wissenscli. Wien, IMath.-Nat.CI., vol. 102, 1893, p. 807.?Dalla Torre, Cat. Hym., vol. S, 1897, p. 507.For a discussion of the synonomy of this species the reader isreferred to Handlirsch's treatment of the species. He proposedthis name for the species because he could not determine to his ownsatisfaction to which, if any, of the previously described species(listed in his synonomy) the specimens before him belonged. Whenthe identity of this species with that of a previously described specieshas been positively established (as in time it may be), this specificname will have to be set aside, but until that identity has beenestablished it would only add to the confusion to refer to the speciesunder any other name than the one given to it by Handlirsch.There are in the United States National Museum a male fromItaly and tAvo males and three females bearing the label "Austria," allof which I liave referred to this species. As represented by thesespecimens, the species is characterized by its pale, milky, yellowishcolor and by the unusually long pubescence on the propodeum. Thetergites on the male, with the exception of a pair of small black discalspots on the second, are entirely pale yellow. The tergites on thefenuUe show a posterior black border. The middle femora of themale are dentate ; the second and sixth sternites are without di.stinctl^rocesses, and the seventh tergite at the base bears distinct lateralangles. BEMBIX TOROSA, new speciesFigures 210-214Type (male).?Black: labrum; mandibles, except tips; clypeus,except pair of basal spots ; anterior orbits ; lower part of frons ; tri-angular spot below anterior ocellus; scape beloAv; posterior borderof pronotum including the greater part of the tubercles; almost theentire side of prothorax; lateral lines on scutum; curved fascia onscutellum; motanotum; broad curved fascia on dorsum and posteriorsurface of propodeum; metapleura; large irregular spot on meso-pleura; prominent continuous fasciae on tergites 1-6, those on ter-gites 2 and 3 inclosing pair of elliptical black spots and those on 1-5more or less emarginate at mid-dorsal line on posterior border; apexof seventh; lateral spots on sternites 1-6; legs, except line above onfemora, line below on all tibiae, apical black spots below on all seg-ments of the tarsi (reduced on hind pair), and conspicuous blackapical spot above on the ultimate segment of all tarsi; yellovmhwhite.The flagellum is black and segments 9-11 are excavated below, butnone of the segments are spinose. The apical segment, which exceeds
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 85in length the segment immediately preceding, is somewhat curvedand is roundly and obliquely truncate at the apex. The apical halfof the lower border of the middle femur is distinctly dentate. Thesecond and sixth sternites are plain and the seventh bears a distinctmedian, longitudinal carina, which is bordered basally on either sideby a short carina. The seventh tergite is deeply sinuate on eitherside, forming prominent lateral angles that are bluntly spinose andthe short median portion is slightly but plainly emarginato at theapex. The spine of the eighth sternite seen from below shows lateralswellings near its middle part (fig. 211).The maculations on the allotype (female) are quite similar incharacter to those of the type, but their color is yellow instead ofwhite. In addition to the lateral lines, the scutum bears a brokenU-shaped discal mark composed of narrow lines. The maculationson the side of the thorax and propodeum are somewhat better de-veloped than on the type. The fasciae on the tergites are all con-tinuous and the second and third inclose black spots. Those ontergites four and five are of similar pattern but whether the blackspots are completely inclosed can not be determined, owing to theretracted condition of the segments. The spot on the apex of theterminal tergite is less extensive than on the type. The apical spotson the under side of the segments of the tarsi are not so prominentas on the type, particularly on the hinder pair, and the apical blackspot above on the terminal segment of all tarsi, although present, isnot so intense as on the type. The flagellum is black. No part ofthe disk of the second sternite is wholly free from punctures, butthose on the central part are coarser and more widely separatedthan those on the sides or those near the basal and apical medianborders.Variation in the maculations of the paratypes is not great. Onefemale has the sixth tergite black, the fascia on the first tergiteinterrupted, and that on the fifth broken into spots. On the maleparatype from New Britain the fasciae on tergites 2-5 inclose eacha pair of black spots and no doubt this may be true for some of theother specimens but the retraction of the segments conceals theevidence.The wings are only slightly infumated, those of the female beingalmost hyaline. The anterior metatarsus bears five spines. Thepubescence is short, gray, and inconspicuous. The second abscissaof both radiella and cubitella is present. This species seems closelyrelated to Handlirsch's species pugillatrix and papua.Length 18 mm. Described from four males and five females. Ofthese, three males and four females (including type and allotype)bear a common label, " Neu-Guinea, Ramu-Expedit." The fourth
86 PEOCEEDIXGS OF THE XATIOXAL MUSEUM vol.75male bears the label " Neu-Britannien Kalum, E. Dahl S." The fifthfemale bears the label " D. N. Guinea, But, 11. 1910. H. SchaedeS. G."Type.?In tlie Zoologisches Museum der Universitat, Berlin.BEMBIX QUINQUESPINOSA, new speciesFigures 302-1G4Type (male).?Black: labrum; mandibles, except tips; clypeus,except pair of large basal black spots; broad anterior orbits narrowedand shortened above; lower part of frons connected with a spotbelow anterior ocellus and inclosing a median black spot above in-sertion of antennae ; scape below ; posterior orbits broad below, obso-lete above ; narrow fascia on posterior border of pronotum ; tubercleexcept black spot in center; side of prothorax almost wholly; shortlateral line on scutum above base of wings ; small narrow lateral spotson scutellum ; narrow widely interrupted fascia on metanotum ; broadcurved fascia on dorsum of propodeum extended downward on itsposterior surface to end in two points; posterior lateral angles ofpropodeum; broad vertical anterior stripe on side of propodeum;two spots on metapleura ; anterior border of mesopleura extendedbackward and then at a right angle upward in a narrow line to baseof wing; also rounded posterior spot near base of wings and narrowline above base of middle leg on mesopleura; broad anterior fasciaeon tergites 1-6; that on first tergite with irregular borders andnarrowed at middorsal line; that on second irregular on posteriorborder and inclosing a pair of long, narrow, elliptical discal spots;that on third tergite similar to the one on the second but with thediscal spots not fully inclosed; those on fourth and fifth tergiteswidely biemarginate on anterior border and somewhat irregular onposterior border; that on sixth tergite narrower than the others andinterrupted at middorsal line; lateral spots on sternites 2-5 decreas-ing in size from two to five; coxae and trochanters more or less; lineabove and below on femora; tibiae above, except short line onanterior and middle pairs; tarsi, except spot below on each segmentof anterior pair and short basal line below on posterior pair; white.The tarsi are somewhat tawny and the apical segment of each aboveis more or less dusky, the posterior ones being almost black.The pubescence is short, white, and inconspicuous. The wings arevery sligliily and uniformly infuniuted. The frons between theiintennae is carinate and strongly elevated and this elevation iscontinued on the base of the clypeus. causing the clypeus on eitherside at its base to appear strongly depressed. Segments 6 and 7of the flagellum hear small pits below; 8 and 9 are distinctly spinose:
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 8710 and 11 are deeply excavated; and segment 12, which is longer thanthe preceding segment, is strongly curved, squarely truncate at theapex, and its posterior apical angle forms an evident point. Theanterior metatarsus is broad and bears five stout spines. The middlefemur is plain. The second sternite is plain and the sixth has at itsmiddle a low, rounded elevation that can not be classed as a tubercleor process. The seventh bears an evident median carina bordered oneither side basally by a less evident carina. The seventh tergite bearsa pair of evident, nonspinose. lateral angles and at its apex isstrongly emarginate.Allotype (female)..?The allotype in color and maculations veryclosely resembles the type. The Hagellum below is not so light, themetanotum is wholly black, the fasciae on the tergites are narrowand all, except that on the fourth tergite, are interrupted medially;that on the fifth is reduced to widely separated lateral spots. Lateralspots are borne only by sternites 2 and 3. The maculations on thelegs are somewhat better developed than on the type and the tarsishow the same markings borne by the type.The anterior metatarsus bears only five spines. The inner eyemargins are only very slightly divergent at the clypeus. The lateralparts of i\\B second sternite are closely covered with relatively finepunctures; toward the mid line the punctures are fewer and coarser;while on the mid line there is a narrow longitudinal area devoid ofpunctures. The abdomen shows a beautiful purplish irridescence.Length, 21 mm. Described from a male and female collected byR. C. McGregor at Puerto Princessa. Palawan. P. I., September 15,1925.Type (male).?Cat. No. 40838, U.S.N.M.BEMBIX PUGILLATRIX HandlirschBembex pugillatrix Handlibsch, Sitz. Akad. Wissensch, Wieu, Math.-Nat. CI.,vol. 102, 1893, p. 780.?Dalla Torre, Cat. Hyni.. v.'l. 8, 18.97. p. 511.I have before me eight males and three females that I have referredto this species. The males, with respect to the antenna, the middlefemur, the second and sixth sternites, the seventh tergite, and thegenital stipites, agree with Handlirsch's description of the species.The maculations, however, can hardly be termed yellow; they aremore nearly white with a faint yellowish or creamy tinge. Whilethe different specimens show some variation in the extent of themaculations, this variation is no greater than that which Handlirschpoints out in his description.Of the three females that I have referred to this species the macu-lations are decidedly yellow, but on the tergites they are less exten-sively developed than on the males. On two of the females the
88 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75fasciae on the tergites are greatly narrowed and that on the firstlergite is almost suppressed. Owing to this narrowing of the fasciae,the black discal spots in the fasciae are reduced to emarginations, ofwhich those on tergites 2 and 3 are lost or are connected with theposterior black border of the tergite, while those on tergite 4 areconnected with the anterior black border. One of these two femalesbears the label, " Nord-Celebes, Tali-Tali XI-XII, 95, H. Fruh-storfer V.," and the other the label, " Sula Mangoli, Oct.-Novbr.,Doherty ex coll. H. Fruhstorfer."Two of the males also show this suppression of the fasciae on thetergites but not to such an extent as the two females. One of thesetwo males bears the label, "Niat, Bingham," and the other, thesame as the first of the two females.On the third female the fasciae are better developed and the discalblack spots are inclosed. This specimen bears the label, "Davao,Mindanao, Baker," and two. of the males also bear this same label.Three of the remaining males bear the label, " Insel Obi, RoUe V."The eighth male bears the label, "Culasi Panay, P. I., June. 1918,McGregor."Handlirsch reports this sjDecies from Celebes, Luzon, Mindanao,Batjan, Halmahera, Amboina, and Neuginea.BEMBIX PERSIMILIS TurnerFigures 156-158Bembex persimilis Tukner, Mem. Dep't. Agr. Ind., Eat. Ser., vol. 5, 1917, p. 179.Turner described this species from two males from Akalgarh,Punjab, India. I have before me a single male and seven femalesfrom Deesa, India. Turner does not mention the form of the eighthsternite of the male, which in this genus usually ends in a single-pointed spine. The eighth sternite of the male before me ends in abifurcate or two-pointed spine. Below I am giving a detailed de-scription of this species, based on the material before me. I am alsogiving figures of the prominent characters of the male.Male.?Black: labrum; mandibles, except tips; clypeus; frons tothe level of the anterior ocellar cicatrice, except a pair of broadblack spots ; scape almost wholly ; posterior orbits, very broad below,not meeting across the vertex; prothorax except a pair of smallanterior dorsal spots; broken U-shaped spot and broad lateral lineson scutum; narrow fascia on posterior border of scutellum, enlargedat the ends; narroAv fascia on posterior border of metanotum; broadcrescent-shaped fascia on dorsum of propodeum, extended on itsposterior surface in a pair of points; lateral angles and sides ofpropodeum; metapleura and mesopleura; broad fasciae continuouson all tergites, first with a deep bilobed anterior median emargina-
ABT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PAEKER 89tion, second, third, and fourth each with a pair of dorsal anterioremar^inations ; sternites 1-5; pair of broad longitudinal spots onsixth; the legs, except a black spot on each trochanter, black stripeon posterior side of intermediate and anterior femora, a black stripeon posterior side of anterior tibiae and four black spots on anteriormetatarsus; hriglit yellow.The fiagellum is testaceous in color, darker above than below andlacks evident pits or spines. The apical segment is slightly curvedand abruptly pointed at the apex. The anterior metatarsus isdilated and flattened and bears on its posterior border four blaclilobes. It also bears on its posterior border a comb composed ofnumerous thickly set, evenly developed dark spines. The interme-diate tibia, at its anterior apical extremity, is drawn out into a spine-like process which bears a short spine. Tlie intermediate femur isdentate and the metatarsus on its posterior border near the apexbears a comb of several short stout spines. The second sternite bearsa prominent, laterally compressed median process and the sixth, asmall, narrow, pointed tubercle. The eighth sternite ends in a flat-tened median spine that is distinctly bifurcate at the apex. Thebasal half of the clypeus on the mid line is slightly carinate and oneither side is plainly depressed.Female.?Black : labrum ; mandibles, except tips ; clypeus ; frons tolevel of anterior ocellus, except a pair of black spots; broad posteriororbits not meeting above; prothorax; legs entirely; sides of meta-thorax, mesothorax, and propodeum; broad U-shaped mark andlateral lines on scutum ; fascia on posterior border of scutellum, fromthe median point of which a narrow line runs forward ; broad fasciaon metanotum ; broad curved fascia and lateral angles of propodeum
;
broad continuous fasciae on tergites 1-6, first with deep bilobedmedian anterior emargination, 2-5 each with a pair of dorsal anterioremarginations, and sixth with a pair of small widely separatedanterior emarginations; sternites 1-5 wholly, except a median an-terior black spot on 3-5 ; pair of lateral spots on sixth ; yellow.The scape of the antenna is entirely yelloAv. The first two seg-ments of the flagellum are yellow below and dark above. The restof the flagellum is testaceous, being lighter below than above.The wings on both sexes are hyaline. The pubescence is short andsparse, that on the clypeus giving it a silvery sheen. The form of theclypeus in the female is the same as that on the male. There is somevariation in the maculations on tlie several females. On all of themthe basal half of the clypeus is of a brighter yellow than the apicalhalf. On one specimen there is a pair of small black spots on thebase of the clvpeus. On a second the yellow is more extensive thanon others; the posterior orbits are united at the vertex and the
90 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75emarginations on tergites one and two are reduced to paired blackspots. In <;eneral the variations in the maculations are variations inextent rather than variations in pattern.Lenirth 14 mm. The specimens are all from Deesa, India.BEMBIX TENEBROSA, new speciesTyfe (male).?Black: clypeus; frons, except a pair of black spotsabove insertion of antennae and a third black spot above anteriorocellus; antennae; prothorax; tegula; lateral spots on scutum abovetegulae; apex of tergites 5, 6, and 7; sixth sternite; femora exceptbasal ends; tibiae; and tarsi, except apical seo-ment; dark ferruginous.The fiagellum is much lighter in color than is the scape. The base ofthe mandible and the labrum is soiled greenish yellow. The terminalsegment of the anterior tarsus and the apex of the terminal segmentof middle and posterior tarsi are black.On the under side of the anterior tibia near the apical end is arather large shallow depression on the proximal border of which is aprominent black spot and at the distal border of which there is asecond black spot within which there is a conspicuous pit. On theunder side of the anterior femur near the proximal end is a short butevident carina. The anterior metatarsus is provided with eightspines. The posterior border of the middle femur is compressed andwedgelike, especially near the base, but it is neither serrate nordentate. The middle tibia is curved and the middle metatarsus onits inner side near the proximal end bears a small but evident pro-tuberance. Segments 7, 8, and 9 of the flagellum are spinose, and10, 11, and 12 are deeply excavated. The second sternite bears a well-developed, sharp-pointed, median process and the sixth a prominent,triangular, bluntly pointed process that extends slightly beyond theapical border of the sternite. The seventh sternite bears a pair ofprominent, slightly divergent carinae that do not extend to the apicalborder of the sternite, which is broadly truncate at the apex. Theseventh tergite is narrowed and roundly pointed at the apex. Theeight sternite ends in a long, slender spine that is curved downwardnear the middle at almost right angles to the axis of the segment.The allotype (female) is quite similar to the type in the characterof its maculations. The ferruginous color, however, is somewhatlighter in shade and the black on the clypeus, the black spots on thefrons above the antennae, and the black on the apical segments ofthe tarsi are all lacking. A pair of obscure ferruginous lateralspots is found on each of the tergites 4 and 5 and the apex of 6 isalso ferruginous. The sixth sternite is carinate medially and thedisk of sternite 2 is smooth and shining and bears only a few .scat-tered, coarses punctures. The anterior metatarsus bears only sevenspines.
AKT. 5 GENERIC REVISION OF THK FOSSORIAL WASPS PARKER 91The wings of the male are slightly and uniformly infumatedwhile those of the female have the apical third clear and the basaltwo-thirds heavily infumated. On one of the two female paratypesthe lateral spots on the tergites are lacking and on the other muchreduced and on both the ferruginous on the terminal segment ismuch reduced.Length 28 mm. Described from one male and three females beai-ing the label, "D. Ost-Afrika, Stuhlmann S."Type.?In the Zoologisches Museum der Universitat.BEMBIX DORIAE MagrettiBcitibex doriae Magketti, Ann. Mus. Geuov.. vol. 21, 18S4, p. '/M.?IIaxulirsch,Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 102, 189.3, p. 891.?Dalla Torre, Cat. Hym.. vol. 8, 1897, p. 504.There is in the collection of the United States National Museum asingle male of this species determined by Magretti. The basal halfof the wings is heavily infumated, the apical part clear. The an-tenna, with the exception of the last three segments of the flagellum,is ferruginous, and segments 7-9 of the flagellum are spinulose be-neath. The maculations of head, thorax, propodeum, and legs areferruginous with a show of yellow on the labruni and mandibles, andon the tibiae and tarsi, especially on the hind pair. The clypeusshows a marked silvery pubescence. Maculations on the thorax arereduced to a narrow line on the pronotum, spot on side of prothorax,tubercles in part, and small lateral spots on scutum above base ofwings. On the propodeum the only maculations are spots on tlieposterior lateral angles. The fasciae on tergites 1-5 are yellow and.very broad. The first is abruptly narrowed and interrupted at themiddorsal line; the second incloses a pair of narrow transverse discalspots; and the third, fourth, and fifth cover practically the entiresurface of their respective tergites. The visible surface of tergitesand 7 are ferrugThous. All sternites are ferruginous with 2-r)bearing small lateral yellow spots.The middle metatar.sus on its lower surface at the middle bears aprominent, longitudinally compressed, thin dilation. The secondand sixth sternites bear prominent processes. The specimen wastaken at Keren, Eritrea, February 27, 1900.BEMBIX FUSCIPENNIS LepeletierJiemhex fuscipenm'.s hEPELEmm,, Hist. Nat. Ins. Hym.. vol. 3. 1845, p. 271 ?Handlirsch. Sitz. Aliad. Wisseu.scli. Wien. Matli.-Nat. CI., vol. 102, 1893,p. 850.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 497.The male of this species, with regard to structural characters,stands close to donae Magretti. It differs from that species inhaving the fasciae on the tergites pale instead of yellow, and in
92 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75having the ferruginous limited to a central spot on sternite 2 andsternite 6, instead of having all the sternites ferruginous. Thefemale resembles the female of diversipennis, but is much smallerand has a greater j^art of the frons black. The clypeus on thefemale before me is entirely ferruginous.The female before me bears the label, " D. O. Afrika, Tabora,7.08, "Wintgens S. G." The single male at hand bears the label
''Bulawayo, S. Rhodesia, 13-4-1924, R. H. R. Stevenson." Hand-lirsch reports this species from Cape of Good Hope, Port Natal,and Transvaal. BEMBIX STEVENSONI, new species ,.Figures 19O-200 i2'ype (male).?Black: labrum; mandibles, except tips; sides ofclypeus; posterior orbits; narrow line on posterior dorsal border ofpronotum; narrow line on posterior margin of side of prothorax,including posterior margin of tubercle ; small obscure spot at lateralangle on side of propodeum; large lateral spots on first tergitenarrowed to a point toward middorsal line; continuous fasciae ontergites 2-5, that on second bearing a pair of long narrow dorsalspots not completely inclosed but continuous with the anterior blackborder, those on 3-5 bisinuate on anterior dorsal margin; lateralspots on sternites 2-5; femora in part; tibiae, except line below onall; and tarsi; yellow.The greater part of clj'peus; anterior orbits; transverse series ofspots on frons below anterior ocellus; pair of spots above antennaeconnected with orbits; spot between insertions of antennae; scape;flagellum, except three apical segments ; small lateral spot on scutumabove base of wings; narrow obscure lateral spots on scutellum;apical border of fifth tergite ; fascia on sixth ; apical portion ofseventh; large central area on second sternite; broad transverse bandon sternites 3-5 extending between lateral yellow spots; almost thewhole of sternite G; fenniginous.Segments 7-9 of the flagellum are slightly but plainly spinoseand segments 10-12 are entirely black, while, with the exceptionof 9, which is black in part, the remaining segments of the flagellumand the scape are a light ferruginous color. The middle femoraare smooth. The spur on the middle tibia is short, broad, andthumblike. The middle metatarsus bears on its inner (lower) sur-face a relatively large swelling or protuberance. The second sternite.bears a prominently laterally compressed, pointed process, and thesixth a prominent, flattened process whose apical margin is broadlylounded. The seventh sternite is narrowed toward the apex, whichis roundly truncated and on its ventral surface it bears a pair of
Ain. 5 GENERIC EEVISION OF THE FOSSORIAL WASPS PAEKER 93
short prominent lateral carinae. The seventh tergite is deeplysinuate laterally, narrowed and truncated at the apex.The allotype (female) differs but slightly from the type withrespect to its maculations; the lateral spots on the scutellum arecontinued by narrow lines that almost meet at middorsal line; thereis a broken line on the metanotum; there is a narrow fascia on thepropodeum and the spot on its lateral angle is larger; the fascie onthe first tergite is continuous but narrowed dorsally; that on thesecond incloses a pair of black spots; the apex of the fifth tergite isferruginous and the sixth is wholly so. The antenna is ferruginous,but the scape, the first segment of the flagellum and the base of thesecond are black above. The apex of the flagellum is darker thanthe rest of it, but the contrast is not so great as on the type. Thesixth sternite is ferruginous and carinate on the midline. The diskof the second is smooth and bears on either side the midline numer-ous coarse punctures. The sixth tergite is triangular in outline,rounded at the apex and bears, except along its median part,numerous, short, stout spinelike hairs.The wings in this species are lightly but uniformly infumated, theinfumation being somewhat more pronounced in the female than inthe male. The pubescence is of normal character. The clypeus isstrongly arched and only slightly carinate at base. The frons be-tween the antennae likewise is only weakly carinate. The anteriormetatarsus is provided with six spines. On both type and allotypethe ferruginous bands between the lateral yellow spots on the sternitesinclose more or less black that may take the form of a narrow trans-verse line. Of the paratypes (females) two have the fascia on thefirst tergite interrupted and the base of the clypeus strongly borderedwith black, and one of the two has both the metanotum and propo-deum without maculations. On both, the fascia on the second tergitehas a pair of deep anterior emarginations instead of the inclosed blackspots found on the allotype. A third has the markings on the thoraxand propodeum white. On this specimen the antennae are almost likethose of the type in color.The type of this species was received in an exchange and had beenidentified as Beinhex capensis Lepeletier by R, H. R., Stevenson, forAvhom the species is named. The original description of B. capensisLepeletier states that the antenna is black, whereas in this speciesthe scape and the first eight segments of the flagellum are ferruginous.Furthermore, in this species neither the clypeus nor the labrum ismarked at all v/ith black and the process on the sixth sternite, insteadof being small and subacute, is prominent, broad, and rounded atthe apex. It is further distinguished from capensis by the infumatedwings.
94 PKOCEEDINGS OF THE ISTATIONAL MUSEUM vol. 7r,Len^h 14?17 mm. Described from one male and four females(includin<>: type and allotype). The type was collected by R. H. R.Stevenson at Bulawayo, South Rhodesia, and the allotype bears thelabel " D. O. Afrika, Tabora, 7. 08, Wint?rens S. G." The paratypesbear a common label, " Victoria-Nyansa, I. Ulierewe, Conrads S. G."Type (male).?('at. No. 40839, U.S.N.M.Allotype mid paratypes.?In tlie Zoologisches Museum der Uni-versitat, Berlin. BEMBIX REFUSCATA, new species
I'i.iinrt's ](}i)-lTlType (male).?Black: labrum; clypeus; scape; frons, except twonarrow vertical lines connected by a third line across the frons;broad anterior orbits; posterior orbits; pale^ suffused in many placeswith ferruginous. Greater part or prothorax; tegulae; short line onscutum above tegula; legs, except basal segments; seventh tergite;apical border of sixth and to a slight extent that of the fifth
:
feri^glnous. Lateral angles of propodeum; widely interruptedfasciae on tergites 1-5 : yellowsThe fiagella are missing and the tarsi are broken on all legs exceptone of the posterior pair. The anterior femur below bears a broadpale stripe separating the black at the proximal end and extendingalmost to the apex of the segment; and each anterior coxa bears alarge, pale spot. The middle femur is smooth; the middle tibia isslightly curved; and the middle metatarsus, on its inner side, nearthe proximal end, bears a small but quite evident swelling or pro-tuberance. The apex of the terminal segment of the posterior tarsusis black. The second sternite bears a small sharp-pointed processand the sixth a prominent bluntly pointed process, whose apex extendsbeyond the apical border of the sternite and whose sides are fer-ruginous in color. The seventh bears a pair of prominent lateralbasal carinae. The seventh tergite is triangular in outline, truncateat apex, and slightly carinate on dorsal midline.The allotype (female) very closely resembles the type in colorand the character of the maculations. It diifers in that only thelabrum and clypeus are pale; that the frons, except for an areaabove the anterior ocellus, is wholly ferruginous; that the lateralangles of the propodeum are not maculated; and that the macula-tions of tergites 1-5 are pale with a tinge of ferruginous instead ofyellow. The flagella are very light ferruginous. The sixth tergiteIS darkly ferruginous, slightly sinuate on the sides, broadly roundedat the apex, and covered almost to the apex with short, stout, spine-like hairs. The disk of second sternite is shining and bears numer-ous punctures.
AKT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 95The wings of this species are slighthly infumated. The innereye-margins are somewhat divergent at the clypeus. The frons be-tween the antennae is strongly carinate and the carina is continuedon the basal part of the clypeus. The pubescence is short and incon-spicuous. The lateral margins of the propodeum are similar to thoseof recurva.I have assigned to this species a male bearing the label '' Victoria-Nyansa, I. Ukerewe. Conrads S. G." The genitalia of this specimenhad been removed before the insect reached me. Segments 8 and 9of the flagellum are spinose, and 10, 11, and 1'2 are excavated below.The eleventh is broad and the twelfth is narrowed toward the apexand somewhat curved. In other structural characters this specimenagrees with the type and it also agrees in having the pale line belowon the anterior femur and the pale spots on anterior coxae. Itdiffers in that the maculations on the tergites are pale instead ofyellow ; that the fascia on tergite 3 is continuous and those on 2, 4,and 5 are only narrowly interrupted; and that 2 incloses a pair ofblack spots.Length 22 mm. Described from three specimens from easternAfrica. The type bears the label, " D. O. Afrika, Kamoga, Fr.Midler S." Allotype bears the label. " D. O. Afrika Mkatta I-VI '09,
^Schonheit S. G."Ti/pe.?In the Zoologisches Museum der Universitat, Berlin.i BEMBIX INSULARIS (Dahlbom)Moncduhi iiisularis Dahlbom, Hym. Eur., vol. 1, 1845, p. 186.
?
Cresson, Proc.Eiit. Soc. Phila., vol. 4, 1865, p. 143.Bcmhex insuJaris Handlirsch, Sitz. Akad. Wissenscli. Wien, Math.-Nat. CI.,vol. 102, 1893, p. 826.?Dalla Torre, Cat. Hym., vol. 8, 1897, p." 506.Dahlboni'S description of Monedula insularis is not completeenough or detailed enough to enable one to determine just whatspecies he had before him, but Handlirsch, in his description of thisspecies, .states that he had, among the specimens he examined, two
; of Dahlbom's types. That being the case, there can be no doubt
I of the identity of the species. Cresson's description was beyond
i doubt based upon a species of Bemhex^ and a comparison of his
I
description with that given by Handlirsch convinces me that the twoauthors were dealing with one and the same species.In the collection of the United States National Museum are twomales from Jamaica that I have referred to this species. On these
I males the sixth sternite, in addition to the median process, bearsa pair of evident lateral processes, a cliaracter that neither Handlirschnor Cresson mentions. This character is present also on the malesof infumata Handlirsch, nuhilipenms Cresson, and hamata C. L. Fox.
96 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75Handlirsch's specimens and likewise Cresson's came from Cuba,while Dahlbom's were from the Islands of St. Thomas and St.Bartholomew. I have also before me a male and female of thisspecies taken by C. C. Gowdey on the island of Jamaica.BEMBIX SINUATA LatreilleBemiex sinuata Latreiixh, Gen. Crust, and Ins., vol. 4, ISOd, p. 98.
?
Hand-LiRSCH, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 102, 1893, p.744._Dal,la Torre, Cat. Hym., vol. 8, 1897, p. 514.The male of this species, although resembling the male of hidentatdin general appearance, is well marked and distinct. The seventhtergite lacks the lateral spines found on hklentata and is broadly andbluntly rounded. The seventh segment of the flagellum is stronglyand transversely excavated below, and segments 9-12 are also ex-cavated but not transversely. The clypeus is strongly prominent andflattened on the ventral part, forming a V-shaped ventral area. Theanterior metatarsus bears seven spines and a prominent medinacarina below. The posterior border of the middle femur is flattened,somewhat curved, and distinctly dentate. The spur on the middletibia is dilated, spoon-shaped. The second sternite is tuberculate,the sixth plain, and the seventh bears a prominent, blunt tuberclewhose ventral border is flattened.The female is characterized by the many spinelike hairs on thesixth tergite. These are also present on the apical border of thefifth. The clypeus bears a median black spot. The fasciae on thetergites are continuous and the sixth tergite has the apical halfmaculated.I have at hand two males and two females of this species deter-mined by Mercet. The four specimens bear a common label, " LosMolinos [Spain] G. Mercet." The species seems to be limited indistribution to those regions bordering on the western part of theMediterranean Sea. BEMBIX ARCUATA ParkerFigures 217, 220BemMx arcuata Pabkek, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 81.In this species the ocelli, though much distorted, are not com-pletely obliterated ; lenses are visible. The male, in common with themale of U-scripta Fox, has the scape much thickened, the labrumwith a small hump on the midline, the anterior metatarsus with 10spines, the middle tibia with the anterior apical border produced intoa spinelike process, the middle metatarsus concave and beset withspines on the inner side, and the seventh tergite with apical lateralridges and with distinct but not sharply defined basal lateral angles.
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 97Both species have the middle femora dentate below, the second andsixth sternites without processes, and the seventh sternite with a pairof widely separated carinae that diverge basally. The male geni-talia of this species differ widely from that of U-seii'pta. The twospecies also differ in the character of their maculations.specimens examinedKansas.New Mexico: Mesilla (June 26, 1897, Cockerell).Texas: Cotulla (May 11, 1900, J. C. Crawford).P" BEMBIX U-SCKIPTA FoxFigure 218Bembex U-sonpta Fox, Proc. Acad. Nat. Sci. Phila., 1895, p. 362.Bemhiw U-scrlpta PAEKBai, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 8.3.In the collection of the United States National Museum tliere isa single specimen of this species, a male, bearing the designation
" Type," but by whom so marked I do not know. It bears the label
" Tucson, Arizona, Coll. Ashmead," and since Fox based his de-scription of the species in part on material collected at Tucson byAshmead it is quite probable that this is a male from the group onwhich Fox based his description. Fox also had some material fromCalifornia, and I have identified specimens of this species from NewMexico. It is closely related to the preceding species {Beiiibix asrcuataParker) , with which it agrees in its most prominent structural char-acters, as set forth in the discussion of that species.
I BEMBIX VELOX HandlirschBembex velox Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol.102, 1893, p. 819.Handlirsch described this species from a single male from Zanzibar,Africa. I have before me one male and six females that I have, aftercorusiderable hesitation, referred to this species. With respect to thecharacter of the antennae, the middle femora, the processes on thesecond and sixth sternites, and the genitalia, this male agrees withthe description and figures given by Handlirsch for Bemhix velox.It differs from the description of that species, however, in having thewings clear and in having a pair of minute black spots on the clypeus.The form of the seventh tergite differs slightly from that shown inHandlirsch's figure of the seventh tergite of velox. Since Handlirschhad but a single individual from which to write his description, thevariations within the species Avere unknown to him, and it seems tome that the differences noted above are well within the limits ofvariation possible within a species.The females in general form and appearance resemble veryclosely the male with which I have associated them. They differ22764?29 7
98 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75from the male in the following respects: The frons, except a smallround spot on either side the anterior ocellus, is entirely black; theelypeus, except the ventral-lateral areas, is also black; and the labrum,except a narrow longitudinal, lateral stripe on either side, is likewiseblack. The fasciae on the tergites are similar to those on the male,except that the first fascia is continuous on some specimens and moreor less widely interrupted on others, and the second fascia bearsinclosed discal marks instead of anterior emarginations. On twoof the females there is a pair of transverse discal marks on theextreme posterior border of the scutum ; on all there are maculationson the posterior dorsal surface of the propodeum; and on some themetanotum is also maculated. The wings are only slightly infumated.The male bears the label, " D. O. Afrika, Forst St. Msalla, 15. IV.Brandenburg S. V." The females bear a common label, " Victoria-Nyansa, I. Ukerewe, Conrads S. G."BEMBIX CINEREA HandlirschBenibex cinerea Handlirsch. Sitz. Akad. Wissensch. Wien. Math.-Nat. CI., vol.102, 1893, p. 837.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 503.Benibix cinerea Parker, Proe. U. S. Nat. Mus., vol. 52, 1917, p. 84.This species seems to occur only in those States bordering theeastern and southern coasts of the United States. The species isrelatively small and is sparingly maculated. The male has the lateralareas of the elypeus black. The specimens on which Handlirschbased his description of the species were from Georgia.SPECIMENS EXAMINEDFlorida.Georgia.New Jersey: Cape May (July, 1890).Texas. ,tt(.BEMBIX HINEI ParkerBetiibix hinei Parker, Proc. U. S. Nat. Mus.. vol. 52. 1917, p. 86.This species is very closely related to cinerea Handlirsch, fromwhich it may be distinguished by the fact that in this species thetarsi are invariably yellow, whereas in cinerea the tarsi are wholly orin part black, never wholly yellow. The mandibles on cinerea areblack, whereas on this species they are largely yellow. On the maleof this species the elypeus is wholly yellow and the genital stipes isquite different from that of cinerea. This species is larger thancinerea and its maculations are better developed.spek:imons examinedLouisiana.Texas: Brownsville; Galveston (May, F. H. Snow); Ladre Island (June 29,1895).
AKT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 99BEMBIX ALACRIS. new speciesFigures 87-89Type (male).?Black: mandibles, except tips; pair of small spotsbelow anterior ocellus; narrow posterior orbits; narrow line on pos-terior border of pronotiim uniting small lateral spots ; spot on side ofprothorax extending to posterior border of tubercle; lateral spot onscutum at base of wings; narrow fascia on posterior border of scutel-lum ; narrow, broken fascia on metanotum ; pair of spots on posteriorsurface of projwdeum; lateral angle of propodeum; spot on side ofpropodeum ; spot on metapleura ; fascia on first tergite, narrowed andinterrupted at dorsal midline ; broad fascia on second, inclosing a pairof dorsal elliptical spots and narrowed at dorsal midline ; broad fasciaon tergites 3, 4. and 5. biemarginate on anterior border and sinuate atmidline on posterior border; fascia on sixth tergite; lateral spots onsternites 2-5 j femora in part; tibiae, except below on all; and tarsi,except lower surface of anterior pair: yellou-^.The wings are hyaline; the antennae are black, the scape being;very thick and heavy. Of the flagellum, segments 6. T, 8. and to aslight extent 9. aie spinose. and segments 9, 10, and 11 are excavatedbelow. The ultimate segment is strongly curved, flattened andpointed at the apex, which is very light in color. The middle femoraare dentate, the teeth, five in number, being limited to the apical halfof the femur. The second sternite bears a well-developed mediancarina and the sixth, a conspicuous median swelling which can notbe properly called a tubercle or process. The frons between theantennae is carinate and the eye-margins are approximately parallel.The anterior metatarsus is provided with six spines, which are Avhitein color. The seventh tergite is abruptly narrowed toward the apex.Avhich is roundly pointed (fig. 88). The seventh sternite is muchnarrowed at the apex and is not distinctly carinate.This species stands close to B. melanoim Handlirsch, from whichit may be distinguished by the different form of the seventh tergite^by the lack of a process on the sixth sternite, by the white spines onthe anterior metatarsus, and the different form of the genital stipes.Length 17 mm. Described from a single specimen bearing thelabel, " Somali, Salakle, 7-6-01, B. V. Exlauger."Type (male).?In the Zoologisches Museum der Universitat, Berlin.BEMBIX ALDABRA, new speciesFigures 83, 84Type (male).?Black: labium; mandibles, except tips; clypeus;area between antennae; pair of spots on frons below anterior ocellus;scape below ; broad anterior orbits deflected aAvay from the eye-margins above and extended to the vertex ; posterior orbits narrowed
100 PEOCEEDIXGS OF THE NATIOXAL MUSEUM vol. 7.Tabove; narrow posterior border of pronotum; sides of prothorax,except large spot in front of tubercles; broad lateral lines and brokenU-shaped discal mark on scutum; narrow fascia on posterior borderof seutellum widened at its extremities ; fascia on metanotum ; narrowfascia on propodeum, widened and interrupted on its posterior sur-face; large spot on lateral angle and side of propodeum; spot onmetapleura ; narrow spot on mesopleura ; fasciae on all tergites con-tinuous; that on finst tergite broad laterally, narrower dorsally anddeeply notched at midline on anterior border; that on second tergiteinclosing pair of dorsal black spots and also notched at midline onanterior border; remaining fasciae more or less deeply biemarginateon anterior border; small lateral spots on sternites 2-4; femora inpart; tibiae, except spot below on all and spot above on anteriorpair; and tarsi; yellow.The flagellum is black above, testaceous below ; the seventh segmentis slightly spinose on its posterior median border and the eighth andninth segments are very slightly spinose at the posterior apical border.Segments 9-11 are somewhat excavated below and the terminal seg-ment is slightly curved and light in color at the apex. The fronsbetween the antennae is carinate, as is also the base of the clypeus.The anterior metatarsus bears six spines. The inner margins of theeyes are approximately parallel. The middle femur on the distalhalf of its posterior border is dentate, the teeth being quite small.The second sternite is carinate on the midline, with the posterior endof the carina taking the form of a weakly developed tubercle. Thesixth sternite bears a distinct tubercle that is not at all pointed. Theseventh sternite bears a prominent, median, longitudinal carina, andthe seventh tergite is distinctly, though not deeply, emarginate atthe apex. The wings are hyaline and the pubescence normal.With respect to the maculations, there is little variation betweenthe type and the eight paratypes. With respect to the development Iof the processes on the second and sixth sternites, however, there isconsiderable variation, and in the preparation of my key to the malesof this genus I have endeavored to avoid confusion due to this varia-tion by inserting this species in the key in two places.In the collection of the United States National Museum, taken bythe same collector at the same place as the males assigned to thisspecies, and presumably at the same time, is a single female that maybe the female of this species, but in the character of its maculationsit differs so widely from the males that, in the absence of any data iother than that just stated above, I do not feel justified in assumingthat it is the female of this species. The antennae are black; thefrons, clypeus, and labrum are almost wholly black, and maculationson the scutum, seutellum, and propodeum (except on the lateralangles) are entirely lacking.
ABT. 5 GE^^ERIC REVISION OF THE FOSSORIAL WASPS PARKER 101Length 15 mm. Described from nine males (including the type)that bear a common label, "Aldabra I., Indian O., W. L. Abbott."Type.?Q^{. No. 40840, U. S. N. M.BEMBIX TREPANDA DahlkomFigures 207-209Bemhex trepauda Dahlbom. Hym. Eur., vol. 1, 1845, p. 181.
?
Hanuurscii, Sitz.Akad. Wissensch. Wien, Marh.-Nat. CI., vol. 102, 1893, p. 736.?Dalla Torre,Cat Hym., vol. 8, 1897, p. 515.The male of this species is characterized by the almost angulardilation of the posterior border of the anterior femur, by the serratemiddle femur, and by the lateral lobes and apical emargination ofthe seventh tergite. Segments 7 and 8 of the flagellum are distinctlyspinose, segments 9-11 are dilated and excavated below, and segment12 is strongly curved. The genitalia are shown in Figure 209. Inboth sexes the anterior metatarsus bears seven spines, and the secondabscissa of the cubitella is lacking. The wings of the female arerelatiAcl}^ shorter than is normal in this genus.The specimens of this species in the United States National Mu-seum are all from Deesa, India. Handlirsch reports this species fromMauritius and Ceylon; Cameron reports it from Barrackpore, Bom-bay, and Gilgit. BEMBIX ORIENTALiS HandlirschFigures 153-155Bem'bex orientalis Handlirsch, Sitz, Aliad. Wissensch. Wieu, Math-Nat, CI.,vol. 102. 1893, p. 737.?Daixa Tokre, Cat. Hym., vol. 8, 1897, p. 510.This species stands very close to Bembix trepanda^ from whichspecies the male may be distinguished by the absence of an apicalemargination on the seventh tergite, by the fact that segments 7 and8 of the flagellum are not distinctW spinose below, and by the differentform of the genital stipes. The female differs from the female oftrepaiula by having the sixth tergite black. A single female in theUnited States National Museum, received in an exchange as a femaleof this species, bears a pair of basal black spots on the clypeus. Itbears the label, " Sikhim, Coll. Bingham." The two males that Ihave referred to this species are from Deesa, India.BEMBIX SECULATA, new speciesFigures lfX)-l!)2Type (male).?Black: labrum: mandibles, except tips; clypeus;broad anterior orbits deflected inward on vertex to join broad pos-terior orbits; frons below anterior ocellus, save pair of widely sep-
I102 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 7.-)arated black spots ; scape, save black spot apically above ; prothorax
;
prominent U-shaped discal mark and broad lateral lines on scutum;broad fascia on scutellum with short anterior extension at midline:metanotum; propodeum almost entirely; metapleura; mesopleura,except a minute round spot; broad continuous fasciae on tergites1-6, first, second, and third each bearing a pair of dorsal spots, fourthand fifth biemarginate on anterior border ; sternites 1 and 2 ; sternite3, except small median anterior spot; fasciae on 4 and 5 each witha prominent median and pair of smaller lateral anterior emargina-tions; narrow interrupted apical fascia on sternite 6; legs, exceptjjosterior line on all femora ; yellow.The flagellum is testaceous below, darker above, and segments 6.7, and 8 are spinose on posterior border. The apical segment isstrongly curved and sharply pointed, giving the segment a sickle-shaped outline. The intermediate femora are serrato-dentate. Thesecond sternite bears an evident median carina and the sixth bearsa slight median process, which terminates near the apex of the seg-ment and from which a transverse ridge extends on either side tothe margin of the sternite at a short distance from the apex. Theapical part of the seventh sternite bears a median carina and ispointed at the apex. The seventh tergite bears distinct lateral lobes(fig. 191), in this respect resembling trepanda and oHentdlis.Allotype.?Black: labrum; mandibles, except tips; clypeus, excepta pair of small basal black spots ; anterior orbits deflected inward atthe vertex to join the posterior orbits; frons below anterior ocellus,except a pair of large black spots; prothorax; broad U-shaped markand broad lateral lines on scutum; very broad fascia on scutellumwith short median anterior prolongation; metanotum; propodeumalmost entirely; metapleura; mesopleura; broad fasciae on tergites1-5, each emarginate at midline posteriorly, first, second, and thirdeach inclosing a pair of dorsal spots, fourth and fifth biemarginateon anterior border; sternite 2, except large median spot; fascia onsternite 3 with deep anterior median emargination ; fascia on 4 withlarge median and pair of smaller lateral emarginations ; fascia on 5reduced almost to lateral spots; minute lateral spots on 6; legs,except black line on posterior surface of all femora and trace ofblack on posterior surface of hind tibiae ; yello-w or yellowish white.The pubescence is short, white, and normal in development. Onthe clypeus of the female it imparts a silvery sheen. The flagellumof the female is darker than that of the male, its apical segment iscurved slightly but is not so sharply pointed as is that of the male.The wings are hyaline. Basally the clypeus is carinate on midlineand somewhat depressed on either side. On all specimens there is apair of small black spots on the mesosternum.
ABT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS?PARKER 103Length 15 mm. Described from three males and two females fromDeesa, India.Type, alJotype. and paratypes.?Cat. No. 40841, U.S.N.M.BEMBIX BELFRAGEI CressonBembex belfragei Cresson, Trans. Amer. Ent. Soc, vol. 4, 1873, p. 220.Bembex cressonis Handlirsch, Sitz. Akad. Wisseusch. Wien, Math.-Nat. CI.,vol. 102, 1893, p. 793.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 503.Bembex insignis Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI.,vol. 102, 1893, p. 793.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. .506.Bembix belfragei Parker, Pioc. U. S. Nat. Mus., vol. .52. 1917, p. 92.The reasons for the s}'nonymy given above were set forth in myprevious paper on the Bembicine wasps and need not be repeatedhere. This species is well marked and is not likely to be confusedwith any other species thus far described from North America.SPECIMENS EXAMINEDTexas: CotuUa (May 5, 1905, W. D. Pierce).Wi8CX)nsin: North Hudson, St. Croix County (July 7-12, 1910).This species has been reported also from Georgia, Kansas, andLouisiana. BEMBIX RUGOSA ParkerFigures 215, 216Bembix rugosa Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 95.This species, which is known only from the type (a female) inthe United States National Museum, may be readily recognized byits unusually long, narrow labrum and its rugose sixth tergite.When this species was described I raised the question of the possi-bility that this may be the female of Berribix stenehdoma Parker,rot so much because of the resemblance of the two sexes as becauseof the resemblance of the male and female, respectively, to the maleand female of Bembix helfragei Cresson. But until more evidenceis available I do not think it proper to associate the two as sexes ofone species. The type bears simply the label "Ariz."BEMBIX INTEGRA PanzerBembex Integra Panzer, Faun. Ins. Germ., vol. 8, 1805, p. 84.
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Handlirsch,Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 102, 1893, p. 701.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 506.The male of this species, with respect to the dilation of segments2-4 of the anterior tarsus and of the middle metatarsus, resembleszonata, but on this species the dilation of the anterior tarsus ismarked with black, which is not the case on zonata. The middlefemur on this species has the posterior border distinctly curved andstrongly dentate, whereas on zonata it is straight and not dentate.
104 PROCEEDINGS OF THE NATIONAL MUSEUM voi. 75In addition the process on the sixth sternite is strongly developedinto a median tubercle on this species and the maculations on thesternites consist of only lateral spots.The female may be distinguished from zonata by the presence ofonly lateral spots on the sternites instead of broad fasciae, and by thelack of conspicuous maculations on the thorax and propodeum.This species is distributed over central and southern Europe. Iliave before me three males and seven females, of which one maleand two females were determined by Mercet. This male bears thelabel, " Granja, G. Mercet," and the two females bear the label,"Los Molinos [Spain], G. Mercet." One of the other males is la-beled " Germany," and the second is labeled "Austria." Of the fiveremaining females, three bear the label, "Austria " ; a fourth, thelabel, "Valley of Ordera, Pyrenees (Seitz) 1400-1700 m."; and thelifth is without a locality label.BEMBIX AMOENA HandlirschBenibex amoena Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CL,vol. 102, 1893, p. 769.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 502.BemMx amoena Parkehj, Proc. U. S. Nat. Mus., vol 52, 1917, p. 88.This species is very closely related to B. sayi Cresson. With re-spect to the males, the only character upon which I can rely toseparate the two species is the length of the apical spur on the middletibia, which on atiwena is always relatively longer than on sayi.Although there is some variation in the length of this- spur on eachspecies, it is, in the case of amoena^ approximately equal to or greaterthan half the length of the middle metatarsus, whereas on sayi it isalways less, and usually very much less, than half the length of themiddle metatarsus. This difference in length of the tibial spur ofthe middle leg holds for the females of the two species also, butthe difference in the maculations of the dorsum of the thorax andpropodeum of the females of the two species is more constant andtherefore more reliable than are any differences in maculations onthe males. SPECIMENS EXAMINEDCalifornia: Yosemite (July 20, 1905, J. McFarland).North Dakota: (C. N. Alnslie).Utah: Beaver Creek Hills, Beaver County; Silver Lake (July 14, H. Skinner).Washington: Govan (August 6, 1911, Hyslop) ; Medical Lake (July 15, 1920,M. C. Lane) ; Soap Lake, Grand Coulee (June 29, 1902).Wyoming: Butte (August 27, 1896, R. P. Currie) ; Yellowstone Park (July 17,1907, W. Robinson; August 4, H. Skinner).Handlirsch reports this species also from Colorado, Illinois,Nevada, and British Columbia.
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 105BEMBIX SAYI CresgonBemhex saiji Cresson, Proc. Ent. Soc. Phila., vol. 4, 1865, p. 467.
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Handursch,Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 102. 1S93, p. 877.?DallaTorre. Cat. Hym., vol. 8, 1897, p. 513.BemUx sayi Parkbtr, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 90.Oresson based his description of this species upon two femalesfrom Colorado, which differed from one another in size and alsoto some extent in their maculation. He says that on one specimenthere were obscure dusky areas on the anterior apical corners of theclypeus, but he failed to state on which of the two specimens thesedusky areas occurred. On both of these specimens the sixth tergit?was entirely black. Handlirsch based his description of this specieson a single female from Illinois and this specimen had the sixthtergite maculated. Fox described a male from Illinois that he con-sidered the male of this species. It was this male that I made thetype of Bennhix foxi Parker, whose description appeared in my pre-ceding paper on this group.** In the collection of the United StatesNational Museum are females from Colorado that answer perfectlyto Cresson's description of the larger of his two specimens uponwhich the species was based, and in the collection are also malesfrom Colorado that so closely resemble these females as to warrantthe assumption that they are males of this s])ocies. On all thesespecimens, both males and females, the fasciae on the tergites arevery light, almost white. In the collection, with the sixth tergiteconspicuously maculated, are other females that I have referred tothis species, some of which are similar in color to those light formsmentioned above and some are of rich golden yellow. It is possiblethat I am including here specimens of more than one species, butthe limited material at hand and the absence of males to associatewith these extensively maculated females does not permit a splittingof this group into distinct species.SrECIMENS EXAMINEDColorado: Alamoza (August 6, 1903, Dyar and Caudell) ; Boulder (August5, 1908, S. A. Rohwer) ; Cope (August 9, 1905, S. A. Johnson) ; Golden.Florida : St. Augustine ( Cockerell )
.
Kansas: (Snow).New Mexico: High Rolls (June 14, 1902).Texas: Aguilares (April 21, 1906, J. D. Mitchell).BEMBIX FUMIDA. new speciesFigures 102, 103Type (male).?Black: labrum; clypeus, except a bilobed basalspot; scape below; mere traces of posterior orbits; lines on femora,
" Proc. U. S. Nat. Mus., vol. 52, 1917, p. 96.
106 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75tibiae, and tarsi of first pair of legs; spot at end of femur of secondand third pairs of legs; fole or soiled yellow. Aside from thesefew maculations the body of the insect is a uniform smoky black incolor. The tarsi are not so black as the body proper.The inner eye-margins are parallel. The flagellum of one antennaand the last three segments of the other are missing. Segments 7-9of the remaining imperfect antenna are spinulose. The middlefemur is dentate. The second sternite bears a small, compressed,pointed process, and sternite 6, a prominent, low, broad processwhose posterior, free border approaches a semicircle in outline;there is also on sternite 6 a pair of small lateral processes on the ex-treme posterior lateral angles of the sternite. The seventh tergiteis abruptly narrowed toward the apex, which is roundly truncate(fig. 103). The wings are slightly infumated, the infumation beingheavier at the middle of the wing than at the apex. The secondabscissa of both the radiella and the cubitella is present. Thepubescence is short, dense, and gray in character.Length 15 mm. Described from a single male from Japan.Type.?In the Zoologisches Museum der Universitat, Berlin.BEMBIX OCULATA LatrcilleBembex oculata Latreille, Hist. Nat. Crust, and Ins.. vol. 13, 1805, p. 302.
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H.\NDLiRScn. Sitz. Akad. Wissensch. Wien. Marh.-Nat. CI., vol. 102. 1893,p. 854.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 509.According to Handlirsch, this is a widely distributed and an ex-ceedingly variable species and because of this great variation, du?to the extent and the color of the maculations and to the presenceor absence of infumation in the wings, he recognized eight differentforms under which this species occurs. All the specimens beforeme belong to what he termed the Southwest-European form.I have before me four males and five females, of which twofemales and two males have been determined by Mercet. Of thesefour the two males and the one female bear the label, " Madrid,G. Mercet," and the second female, the label, " Los Molinos, G.Mercet." Of the remainder one male and one female bear the label,
" J. Lichtenstein, Montpellier, France " ; one female bears the label,
"Sardinia, A. H. Krausse"; and the other male and female arewithout locality labels.BEMBIX NIGROCORNUTA, new speciesFigures 141-144Type (male).?Black: labrum; mandibles, except tips; clypeus,except a narrow basal border; a transverse row of spots on fronsbelow level of anterior ocellus; narrow posterior orbits; prothorax,
ART. 5 GEXERIC REVISION OF THE FOSSORIAL WASPS P.AJRKEE. 107
except si)ot in front of tubercle; U-shaped discal mark and laterallines on scutum; fascia on posterior border of scutellum; narrowfascia on posterior border of metanotum; curved fascia on dorsumof propodeum; lateral angles of same; large triangular spot onmesopleura; spot on metapleura; fasciae on tergites 1-5 all contin-uous except the fifth ; first and second each inclosing a pair of dorsalblack spots; third and fourth each having a pair of anterior emar-ginations; lateral spots on sternites 1-5; pair of conspicuous spotson anterior coxae; femora, save a stripe above and a spot below oneach ; tibiae, save for a narrow stripe below on each ; and tarsi
;
htif/ht yellov?.The antenna is entirely black. Segments 6 and 7 of the flagellumare slightly spinose on posterior border; 10 and 11 are excavated andwhen seen from above are decidedly broader than the apical segment,wliich is curved and roundly truncate at the apex. The inter-mediate femora are dentate. The second sternite bears a small,median, sharp-pointed process. The sixth bears a flattened, broadlytriangular, bluntly pointed median process and a pair of small,pointed lateral processes. The seventh sternite is narrowed poster-iori}' and is squarely truncate at the apex. The seventh tergite iscoarsely punctate and its posterior border is slightly notched orsinuate on either side the midline.Allotype.?Black: labrum; mandibles, except tips; apical half ofthe clypeus divided by a median dark line; spots below anteriorocellus; posterior orbits; prothorax; U-shaped mark and lateral lineson scutum; fascia on posterior border of scutellum enlarged at theends; fascia on posterior border of metanotum; prominent fasciaon dorsum and posterior surface of propodeum; lateral angles andsides of propodeum; metapleura; broad triangular spot on meso-pleura; broad continuous fasciae on tergites 1-A, the first bearing ajmir or round anterior emarginations that are almost inclosed, secondand third each inclosing a pair of dorsal spots, fourth biemarginateon anterior border ; pair of large lateral spots on fifth tergite ; lateralspots on sternites 2-5; pair of conspicuous spots on anterior coxae;femora, save for a line on each above and below; tibiae, save line oneach below; and tarsi; hright yellow.The antenna is wholly black. The sixth sternite is slightly carinatealong the midline and the punctures on either side this median areaare much coarser at the apex of the sternite than at the base. Thesixth tergite is roundly pointed at the apex and is thickly andcoarsely punctate, except along a narrow median line. The lateralborders of the tergite bear numerous short, stiff spines.In this species the wings of the male are hyaline, those of thefemale slightly and uniformly infumated. The pubescence is short
1108 PROCEEDINGS OF THE IfATIONAL MUSEUM vol. Toand white, conspicuous on head and propodeum, less so on the sideof the thorax. The variation in maculations is not great. The blackon the base of the clypeus is always more extensive on the femalethan on the male, and on some females it is more extensive than onothers. On most of the males the anterior orbits are representedonly by a pair of spots in line with those below the anterior ocellus,but on others they are more or less well developed. On some malesthe scape is yellow below. The maculations on the males fromDeesa vary from pale yellow to pale creamy white and the fasciae onthe tergites show both shades of color. The males from Burma,however, do not show this variation. On the females this variationis much less evident. On two of the males from Deesa the process onthe second sternite is much better developed than on the type; in fact,it presents a large well-developed tubercle. On these two specimensand on one other the second sternite is marked by a well-developedposterior yellow fascia. On one female the fifth tergite bears acontinuous fascia and on two the fascia on the first tergite isinterrupted.Length 15 mm. Described from 9 males and 13 females, of which4 males and 9 females, including the type and allotype, are fromDeesa, India; 5 males and 3 females from Tavoy, Burma; and 1female from Sikhim. This last and those from Tavoy were collectedby Bingham.
' Type.?C2it. No. 40842, U.S.N.M.BEMBIX MISERABILIS, new speciesFigures 138-140Type (male).?Black: labrum; mandibles, except tips; clypeus;scape below; broken line on middle of frons; broad anterior orbitsshortened above; posterior orbits; posterior border of pronotumconnected with spot on side; tubercles in part; short, narrow lineon scutum above base of wing; fascia on posterior border of scutel-lum; fascia on metanotum; curved fascia or dorsum of propodeumextended on its posterior surface ; lateral angles and small spot on sideof propodeum; three spots on mesopleura; broad continuous fasciaeon all tergites, the first much narrowed medially, the others biemar-ginate on anterior border, the posterior ones only slightly so ; lateralspots joined by apical lines on sternites 2-6; medial spot on sternites2-4; legs, with exception of black spot on coxae and trochanters andblack line on posterior surface of anterior femora; yellow.The flagellum is broadened apically and the last five segments areroundly spinose on posterior border (fig. 140), and are excavatedbelow. The intermediate femora are distinctly dentate. The sec-ond sternite bears a small, median, compressed process and the sixtha small, pointed i:)rocess. The seventh sternite, which is relatively
ABT. 5 GENERIC REVISION OF THE FOSSOEIAL WASPS PARKER IQUbroad and is slightly emarginate at the apex, also beai-s a medianwell-developed process, such as is usually found on the sixth in otherspecies. The eighth terminates in a comparatively broad, flattened,bluntly-pointed spine, differing thus from most species in whichthe eighth terminates in a rounded acutely-pointed spine. The sev-enth tergite is abruptly narrowed and rather sharply-pointedapically (fig. 139).Allotype.?The female so closely resembles the male in color andmarkings as to render a separate description unnecessary. On thedorsal areas and the sides the maculations are somewhat betterdeveloped than on the male, but on the sternites they are morereduced. The black on the legs is more extensive, lines being presentcm the posterior surfaces of all tibiae and femora and on the anteriorsurface of the posterior femora.The wings in this species are hyaline and the pubescence normal.The color of the maculations as seen on the specimens is a soiledmuddy yellow, but I am certain that these specimens have beendamaged so that they do not represent the true color of the livinginsect.Length 20 mm. Described from one male and one female fromJapan.Type.?In collection of Cornell University,BEMBIX HAMATA C. L. FoxFigui-es 110-112BemUx Tiamata C. L. Fox, Psyche, vol. 30, 1923, p. 6.This species is closely related to Bemhix nuhilipennis Cresson.Like that species, it has the middle femora irregularly dentate, seg-ments 7 and 8 of the flagellum prominently spinose, and sternite 6with small, though evident, lateral processes in addition to themedian process. It differs from nubUipennis in the form of thegenital stipes and in the character of the maculations. On thisspecies the thorax and propodeum are entirely black, while on
'nubilipennis the prothorax is more or less profusely marked withyellow. The pubescence is much more conspicuous than onnuhilipennis.This species Avas described from males taken at San Miguel Island^Calif. BEMBIX NUBILIPENNIS CressonBembex nuHUpennis Cresson, Trans. Amer. Ent. Soc, vol. 4, 1872, p. 218.
?
Handlirsch, Sitz. Akad. AVissensch. Wiou. Math.-Nat. CL, vol. 102, 1893,p. 838.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 509.Bemhix nuMHpennis Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 87.The female of this species has the base and the apex of the wingsclear, but the middle portion heavily infumated, while the wings of
110 PROCEEDINGS OF THE NATIONAL MUSEUM vor,. 75the male are but slightly infumated or, in the majority of specimens,entirely clear. The male may be distinguished from other NorthAmerican species, except insularls, Infumata and hainata, by thepresence of lateral processes on the sixth sternite. From insularisit may be distinguished by the character of the genital stipes and bythe fact that the fasciae on the tergites of irisuluris are white,whereas on tliis species they are yellow. The female of this speciesis not likely to be confused with any other North American speciesexcept melanmpis, which is distinguished from it by liaving moreor less black on the cjypeus, whereas nuhill'penms has the clypeuswholly yellow. SPECIMENS EXAMINEDCoLOEADo: Walsenburg.Illinois: .Taeksonville (July, 1900, Grain).Iowa: Fairfield (T. C. Ross).Kansas: Wilson (August, 1909, J. B. Parker).Mexico: Lerdo, Durango (June 10, 1918).Nebraska: Grand Island (July 5, 1897).New Mexico: Koehler (W. H. Walton).Oklahoma: Durant (June, 1905. F. C. Bishopp).Tennessee.Texas: Bryant; Childress (September 1. 1908, E. S. Tucker) ; Corsicana (May16, 1907, R. A. Cushman) ; Marfa (June 6, 1908, Mitchell and Cu.shman) ;Paris (A. L. Melander) ; Piano (.July 14, 1907. E. S. Tucker) ; WichitaFalls (June 10. 1906, J. D. Mitchell).BEMBIX MERCETI. new naroe
. Figures 129-133Bcmbex handlirschi MEBCirr, Bol. R. Soc. esp. Hist. nat.. 1904, p. 343 (notCameron, Fauna and Geography of Maldive and Laccadive Archiiielago, vol.1, Pt. 1. 1901, p. 57).There are in the United States National Museum a male and afemale of this species identified by Mercet and received from himin an exchange. The male of this species is well marked. Tlieanterior tibia at its distal end is somewhat dilated; the middle tibiais distinctly curved, the concave surface being on the outer side, andits anterior distal border at the apex is produced into a spinelikeprocess that subtends a short spine; the distal end of the middlemetatarsus is distinctly flattened ; the posterior border of the middlefemur is dentate. Both second and sixth sternites bear processes andthe seventh sternite bears prominent lateral carinae and a broadmedian longitudinal area resembling somewhat a process. Theseventh tergite is broadly rounded at the apex and bears a short,median, apical, dorsal depression. At the posterior lateral angles of
ABT.6 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER HIthis tergite lateral ridges are developed, below which the angles arebroadly rounded and directed ventrally.The female resembles the male in color but the ultimate tergiteis greatly narrowed and provided with short lateral ridges near theapex, which is almost squarely truncate. On both male and femalethe inner eye-margins are divergent at the clypeus, and the anteriormetatarsus is provided with 10 spines, of which the three proximalones are smaller than the others. These specimens bear the label,
" Madrid, G. Mercet."BEMBIX REGNATA, new speciesFigures 179-183Tyye (male).?Black: labrum; clypeus, except a pair of smallbasal spots; mandibles, except tips; scape; space between and aboveantennae; transverse line below anterior ocellus; broad anteriororbits shortened above ; broad posterior orbits much narrowed above
;
prothorax, except a series of dorsal spots; lateral line above baseof wings and a pair of short narrow discal lines on scutum; narrowfascia on posterior border of scutellum ; narrow fascia on metanotumcurved fascia on dorsum of propodeum extended downward on itsposterior surface; lateral angles and sides of propodeum; meta-pleura; mesopleura and mesosternum almost wholly; interruptedfascia on first tergite much narrowed toward the midline; continu-ous fasciae on tergites 2-6, very broadly emarginate on anteriordorsal border; lateral spots on sternites 2-5; legs, except line aboveon femora of first and third pairs and small spots near the junctionof femur and tibia of all pairs; yellow^ the fasciae on the tergitesbeing pale rather than bright yellow.The flagellum is dark above, lighter below and toward the apex.Its segments are neither spinose nor excavated but segments 10 and11 are flattened. The apical segment is slightly curved and roundlytruncate at the apex. The middle femora are dentate, being pro-vided with a number of widely separated spinelike teeth. The middletibia has its anterior apical border prolonged into a curved toothlikeprocess which bears at its apex a short spine. Near its middle thistibia also shows a slight enlargement or swelling below. The secondsternite bears a prominent, bkmt, keel-shaped process and the sixtha flattened triangular elevation from the apex of which a slightcarina extends to the apex of the sternite. The seventh tergite isnarrowed and broadly rounded at the apex and covered with numerouscoarse punctures. The eighth sternite ends in a short, thin, flat, bluntspine. The genitalia (fig. 182) are distinct.
112 PROCEEDINGS OF THE NATIONAL MUSEUM yol. 7r,Allotype (female).?Black: labrum; mandibles, except tips; cly-peus, except pair of small basal marks; frons between antennae;elliptical spot below anterior ocellus; anterior orbits narrowed andshortened above; scape, except small apical spot above; posteriororbits narrowed and interrupted above; posterior border of prothoraxincluding tubercles; lateral lines and U-shaped discal mark onscutum; narrow fascia on posterior border of scutellum; fascia onmetanotum ; curved fascia on propodeum ; small spot on mesopleura
;
interrupted fascia on first tergite greatly narrowed at midline; con-tinuous fasciae on tergites 2-5, deeply and roundly biemarginate onanterior dorsal border and acutely emarginate at midline on posteriorborder; sixth tergite; small lateral spots on sternites 2-4; apex offemora in part; tibiae, except line below; and tarsi; yellow. Thelabrum, clypeus, scape, and anterior orbits are pale ratlier thanyellow.The flagellum is ferruginous with the first and second segmentsblack above.The frons in this species is distinctly carinate and the carina is con-tinued on the base of the clypeus. The wings are remarkably shortand hj^aline, though the abundance of short hairs upon the surfacecauses them to appear slightly infumated. The second intercubitusis only slightly bent on both sexes, but is less so on the female thanon the male. The pubescence is very short and inconspicuous. Theanterior metatarsus is provided with seven spines. The second ster-nite of the female is shining and thickly set with coarse punctures.The sixth tergite, except near the apex, which is triangular androundly pointed, is covered with long, fine hair, among which later-ally are a number of stout, spinelike hairs. The inner eye-marginsare almost parallel, being only very slightly divergent at the clypeus.Length about 20 mm. Described from two specimens from easternAfrica. The type bears the label, "D. O. Afrika, Usaramo, RufiajiKlurtusteppe. X?XI, Gotze S." The allotype bears the label,
'^ Nyassa See, Langenburg, 20?25, V. 99, Dr. Fiitteborn S."Type.?In the Zoologisches Museum cler Universitat. Berlin.BEMBIX SPATULATA, new speciesFigures 193-195Type (male).?Black: labrum; mandibles, except tips; clypeus;scape below; frons to level of anterior ocellus, except central blackspot; posterior orbits: prothorax almost entirely; broken U-shapeddiscal mark and short lateral lines at base of wings on scutum; narrowfascia on posterior border of scutellum enlarged at ends; narrowfascia on metanotum ; narrow '-urved fascia, interrupted mediallj' on
ART. 5 GENERIC EEVISION OF THE FOSSOEIAL WASPS PARKEE 113dorsum of propodeum; metapleura: mesopleiira, except small roundedblack spot; continuous faciae on tergites 1-6, first narrowed medially,second, third, and fourth biemar<;inate dorsally; apex of seventhter<iite ; sternites 1-3 entirely ; broad fascia on each of fourth andfifth emarginate medially; the legs, except for black spots on posteriorsurface of trochanters and lines on posterior surfaces of femora andtibiae and apical dark spots on the underside of all tarsal segments
;
very pale yellow or mhife.The flagellum is dark above, testaceous below and its sixth, sev-enth, and eighth segments are slightly spinose. The apical segmentis slightly curved, narrowed, and rounded at the apex. The inter-mediate femora are dentate and the anterior border of the inter-mediate tibia at the apex is drawn out into a spinelike process thatbears a prominent spine. The second sternite bears a prominent,laterally compressed process and the sixth a small triangular process.The seventh sternite is broad, squarely truncate at the apex and spat-ulate in form. It bears a median V-shaped carina and a pair oflesser lateral carinae.Allotype.?Black: labrum; mandibles, except tips; clypeus; scapebelow; frons to level of anterior ocellus, save a pair of black spots;posterior orbits broad below ; prothorax, save anterior part of pro-notum; broken U-shaped discal mark and lateral lines above base ofwings on scutum; fascia on posterior border of scutellum enlargedat the ends ; fascia on metanotum ; curved fascia on dorsum and pos-terior surface of propodeum ; sides of same ; metapleura ; mesopleura
;
broad continuous fasciae on tergites 1-5, first narrowed medially,second inclosing a pair of dorsal black spots, third, fourth, and fifth,each biemarginate on anterior dorsal margin; apex of sixth tergite;sternites 1-4; broad fascia on fifth; pair of minute apical spots onsixth; legs except for black lines on all trochanters, femora, andtibiae ; yellow or very pale yellow.The pubescence on this species is white, short, and sparse, save onthe head and propodeum. On abdominal segments 6 and 7 of themale it is more evident than is usually the case. The maculationson the male vary somewhat. On some specimens the U-shaped discalmark is reduced to a pair of lines and on others it is entirely lacking.The tergal fasciae usually show two colors, yellow on the anteriorborder and white on the posterior, with the white occupying thegreater portion of the fascia. The form of the genital stipes (fig.194) and the seventh sternite of the male render this species easyto identify.Length 13-15 mm. Described from 13 males and 1 female fromQuetta, India.Type., allotype, and paratypes.?Cat. No. 40843, U.S.N.M.22764?29 8
114 PROCEEDINGS OF THE NATIONAL MUSEUM rou 75BEMBIX ROSTRATA LinnaeusFigures 187-189Apis rostrata Linnaeus, Oelandska och Gothlandska Resa, 1745, p. 246.Bemhcx rostrata Handliesch, Sitz. Akad. Wissensch, Wien, Math.-Nat. CI.,vol. 102, 1893, p. 764.?Dalla Torre. Cat. Hym., vol. 8, 1897, p. 512.According to Handlirsch, this species is one of the most numerousand most widely distributed of the paleartic group, being distributedfrom the Mediterranean to Scandinavia and from Portugal to Mon-golia. The male is strongly characterized by the dentate middlefemur, the deeply excavated and dilated last three segments of theflagellum, the tuberculate second and sixth sternites, and the strongcarina of the seventh sternite, which, at the apex of the segment,terminates in a two-pointed process. Of the five males before methese structural characters are constant but variation in the macula-tions is great. On one specimen the fasciae on the tergites are broadand all except the first are continuous; on another they are narrowand all are interrupted at the midline. One male bears the label,
" Europe " ; two bear the label, " Germany " ; the fourth bears thelabel, "Aranjuez, G. Mercet " ; and the fifth bears the label, '' Gray,"A single female before me, which bears the label, " Los Molinos.G. Mercet," has the fasciae on the tergites creamy white instead ofyellow as on the males.BEMBIX PICTICOLLIS Morawitz
Figure.s 139-181Benibex pictioollls Morawitz, Horae soc. Eiit. Roi^s., vol. 23. 1889, p. 144.
?
Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 102. 1893.p. 7G7.?Dalla Torre, Cat. Hym., vol. 8. 1897, p. 511.This species is closely related to BeTnhix rostrata Linnaeus. WithI'egard to the form and structure of the antennae, middle femora, andthe genitalia, the two species are almost identical and their resem-blance in the color and character of their maculations is quite close.The form of the seventh sternite on the two species is quite different
:
On roHtrata this sternite bears a distinct, median, longitudinal carinathat is bifurcate at the apex, whereas the carina on this sternite onplcticollls is simple and does not reach the apex of the sternite. Theform of the spine^on the eighth sternite is also different : On rostratathe spine is long, curved, and pointed in the normal fashion, whereason picticoJlh. although it is sliarply pointed, it is short, straight, andbroadly flattened. The form of the seventh tergite is also different asis shown by Figures 161 and 189.
ART. 5 GENERIC REVISION OF THE FOSSORIAL, WASPS?PARKER 115This species is represented in the United States National Museumby three males, each bearing the label, " Uen Chuen Szechuen, China,Au^. 3-6, 1924, D. C. Graham, Coll., altitude 4,500-5,500 feet."BEMBIX MEGERLEI DahlbomBeinhcx megerlei Dahlbom, Hym. Europ., vol. 1. 184.5, p. 492.
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Handlibsch,Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 102, 1893. p. 729.?DallaToRBE, Cat. Hym.. vol. 8. 1897, p. 508.Of tliis species I have at hand one male and two females, eachbearing the label, ""Austria." The male of this species may readilybe di:;tinguished by the characters found on the middle femur andmetatarsus: The femur is dentate below with the middle tooth, thelongest one in the row and the metatarsus below at its middle pointbears two stout spines and the distal part beyond the spines is slightlycurved. The second and sixth sternites bear moderately developedtubercles and the seventh a broad, median carina. The dorsal borderof the clypeus is black and from the center the black is extended toform a large medinn spot. The mesothorax, metathorax, and propo-<!eurn are wholly black and the maculations on the obdomen areconfined to narrow lateral spots on tergites 1-3.On tiie females the fasciae on the tergites are pale, relatively broad,and all continuous on one specimen and all but the fourth continuouson the other. On both specimens the fifth tergite bears only a pairof small round discal spots and the sixth an apical spot. On onethere is a narrow, interrupted fascia on the scutellum, traces of aninterrupted fascia on the metanotum, pair of large spots on posteriorpart of the propodeum, a very large spot on the side of the propodeumand another on the metapleura. The side of the prothorax on thisspecimen is almost entirely pale. On the other female these samemacnlations are present but are greatly reduced, especially on thescutellum, metanotum, and dorsum of propodeum. On the sternites.maculations are limited on both females to lateral spots on two andthree and to extreme tip of six. On both males and females thesecond abscissa of the cubitella is lacking.BEMBIX MELANOPA HandiirschBrmhex mclanopa Handlibsch. Sitz. Akad. Wissensch. Wien, Mat.-Nat. CI.,vol. 102, 1893, p. 797.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. -508.I have at hand two males and two females that I have referred tothis species, and also two males determined by R. H. R. Stevenson.The peculiar form of the genital stipes, the form of the terminalsegment of the antenna, the position of the teeth on the posteriorborder of the middle femur, together with the black antennae and
116 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75black face, form a combination of characters that readily distin-guishes the male of this species. The female is more difficult to sep-arate from related forms; its black face and black antenna (excepttip of fiagellum), the interrupted fascia on the fifth tergite, and thereduced or obsolete second abscissa of the cubitella vein are its mostconspicuous characters. Four of the specimens bear the followinglabels: " Nyassa-See, Langenburg, III. 98, Fiilleborn S"; " Nyassa-See, Langenburg, 20.VIII.-1.IX.98. Fiilleborn S "; " Kap Kolonie ";and " D. Ost-Afrika, Stuhlmann S." The two males determined byStevenson bear the labels: " Sawmills, S. Rhodesia, 22-27, Dec, 1923,R. H. R. Stevenson"; and " Bulawayo, 13, 9, 1923, R. Stevenson.""BEMBIX FOKCIPATA HandlirschFigures 97-99Bembex forcipata Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. Cl.>vol. 102, 1893, p. 798.?Dalla Toebe, Cat. Hym., vol. 8, 1897, p. 505.This species differs from meJanopa apparently only in the extentof the maculations. The clypeus is largely yellow, the labrum whollyso, and the sides of the thorax are more or less conspicuously macu-lated. I have before me three males and one female that I havereferred to this species. They bear the following labels : *' Dar esSalaam, Aug.-Sept., 1902, Meinhof S."; "D. Ostafrika, mikindani,IV-V, 1911, H. Grote S. G."; " D. Ost-Afrika, Stuhlmann S."'; and
" D. O. Afrika, Hinter Waldungen von Dar-es-Salaam, Schuize V."BEMBIX FRIOEKSIS, new speciesFigures 100, 101Type (male).?Black: labrum; mandibles, except tips; clypeus,except pair of black spots; lower part of frons, continued upwardon midline to join spot below anterior ocellus; small round spot oneither side this large spot; anterior orbits, deflected inward oppositeanterior ocellus; scape below; posterior orbits narrowed above; pro-thorax, except pair of anterior dorsal spots and dusky spot in frontof tubercles; broad lateral lines on scutum; pair of broad discallines and an interrupted transverse posterior line, forming a brokenU-shaped discal mark on scutum ; fascia on posterior border of scutel-lum narrowed at midline; fascia on metanotum; curved fascia onpropodeum, interrupted at midline on posterior surface; posterior-lateral angles and sides of propodeum; metapleura; mesopleura,fasciae on tergites 1-6, all interrupted at midline, first narrowedmedially, second and third each inclosing pair of black discal spots,
ART. 5 GENERIC REVISION OF THE FOSSORIAL. WASPS PARKER 117fourth, and fifth biemarginate on anterior dorsal border; pair ofspots on apex of seventh tergite; second sternite, except pair ofanterior black spots and large medial longitudinal black spot ; lateralspots on sternites 3-5 joined by narrow apical lines; coxae andtrochanters for the most part; femora, except line above on anteriorpair and basal spots on all; tibiae, except small basal spot on alland small spot below on anterior pair ; and tarsi ; yellow.The posterior border of the middle femur on its apical half isweakly dentate, the teeth being small, short, and blunt. The flagel-lum is black and is neither spinose nor excavated, but segments 5-11show specialized areas below and the apex of the terminal segmentis rufous. The second sternite bears a median, sharp-pointed, promi-nent process, and the sixth, a short, broad and bluntly pointedprocess that is slightly concave on its ventral surface. The seventhsternite bears a median carina and at the base a pair of inconspicuouslateral carinae. The genital stipes is distinct in form and bears aconspicuous yellow maculation.The allotype (female) in color differs but little from the type;the scutellum bears lateral spots instead of a fascia; only the fasciaon the second tergite incloses black spots; and the lateral spots onthe sternites are somewhat less extensive. The sixth tergite at itsapex bears a pair of yellow spots. The sixth sternite on the mid-longitudinal line is destitute of punctures, but laterally at the baseit is densely and finely punctate, while at the apex the punctures arevery coarse. As on the type, the flagellum is black with the apex ofthe terminal segment rufous.The wings of this species are hyaline and the pubescence white incolor and normal in development. The frons between the antennaeis but slightly carinate, and the clypeus is only moderately arched.Among the paratypes is a female, from the same locality as the type,that has the sixth tergite black, the anterior orbits interrupted, and,together with a second female from the same locality, has the blackspots on the clypeus joined. Two male paratypes from Piura, Peru,have the maculations in general much better developed. On thesespecimens the black on the clypeus is lacking, the fasciae on tergitestwo and three inclose black discal spots, and those on tergites oneand six are continuous. These two agree with the type in havingthe genital stipes maculated.Length 16 mm. Described from three males and ten females.Of these the type, allotype, and five female paratypes bear the label,
'' Rio Frio, Colombia, March 1924, H. W. Atkinson, Collector." ThetAvo male paratypes bear the label, " Piura, Peru, fls. Asclepiad Vine,April 28, 1911 (Townsend)." Of the remaining females two bear
118 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75
tlie label, " Chauchaiimayo. Peru, from W. F. H. Rosenberg," andtwo bear the label, " Tabernilla, Canal Zone, Panama, IV, 1911, A. H.Jennings, Coll."Tyj,e.?C^t. No. 40844, U.S.N.M.BEMBIX OCHRACEA HandlirschFigures 146-148Bembex ochracea Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI.,vol. 102, 1893, p. 864.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 509.The single male specimen that I have doubtfully referred to thisspecies agrees in most respects with Handlirsch's description. Itdiffers in having no fascia on the propodeum; in having a pair ofobscure yellow spots on the seventh tergite; and in having on thest^rnites well-developed fasciae, of which that on the second sterniteis quite broad and those on the other sternites are broad laterally butare narrowed conspicuously at the midline. These differences in theextent of the maculations are well within the limits of variationfound in species of this genus. Handlirsch's type lacked completeantennae. Segments 7-11 of the flagellum of this specimen areexcavated below and segments 7-9 are spinose. Segment 11 is some-what dilated and the terminal segment is short, strongly curved androundly truncate at the apex. The form of the seventh tergite isshown in Figure 148 and the form of the genitalia in Figure 147.The specimen, which is the property of the Zoologisches Museumder Universitate, Berlin, bears the label " Cap Myers " and thenumber 21616. BEMBIX FESTIVA, new speciesFigures 91-93Type (male).?Black: labrum; clypeus; mandibles, except tips;scape below; area on frons between antennae ending in a pointabove; spot below anterior ocellus; broad but short anterior orbits;posterior orbits; posterior border of pronotum joined with tubercles;sides of prothorax, except long irregular spot in front of tubercles;small lateral spot on scutum above base of wings ; small lateral spotson scutelium; broad fasciae on tergites 1-7, first narrowly inter-rupted at midline, second inclosing pair of narrow discal spots andnarrowed somewhat at midline, third biemarginate on anterior dorsalborder and sinuate at midline on posterior border, fourth emarginateat midline on posterior border, seventh biemarginate laterally onanterior border; lateral spots on sternites 2-6 and median spots on2-4, of which those on 2 and 3 are joined to the corresponding lateral
ART. 5 GENERIC EEVISIOX OF THE FOSSORIAL. WASPS?PARKER 119
spots by apical lines; femora, except more or less of the proximalhalf; tibiae; and tarsi; yelloic.The wings are hyaline. The pubescence is white, rather short, anddense. It is very short, but unusually conspicuous on all segmentsof the abdomen. The flagellum is black above, light yellowish below,and segments 5-9 are spinose below. Segments 10 and 11 are slightlyexcavated below. The posterior border of the middle femur isdentate except near the proximal end. The second sternite bears aprominent, median, laterally compressed process that ends in a short,curved sharp point. The sixth sternite bears a prominent, narrowed,median, bluntly pointed process whose ventral surface is grooved.The seventh sternite bears a median longitudinal carina that reachesthe posterior end of the sternite and assumes almost the proportionsof a process. The anterior metatarsus bears six spines.In general appearance this species resembles nuhilipennis but mayreadily be distinguished from that species by the absence of lateralprocesses on the sixth sternite. It also resembles somewhat the maleof connexa but differs from that species in having the propodeum,metanotum, metapleura, and mesopleura whoUj'^ black.Length 18 mm. Described from a single male bearing the label,
" Oak Creek Canon. Ariz., 6,000 feet, July, F. H. Snow."Type.?In the collection of the University of Kansas.BEMBIX MUSCICAPA HandlirschBrmtex mtiscicapa Handliksch, Sitz. Akad. Wissensch. Wien. Math.-Nat. CI.,vol. 102, 1893, p. 828.?Dalla Torke, C:it. Hym.. vol. 8. 1897, p. 509.Bemhex sapi Fox. Proc. Acad. Nat. Sci. Phila.. 1895, p. 359.Bemhix foxi Pabkek. Proc. U. S. Nat. Miis.. vol. 52, 1917, p. 96.This species is conspicuous for tlie distribution of its mnculations.The sides of the thorax and propodeum are profusely maculated andthe scutum bears more or less well-developed discal and lateral lines,but the scutellum, metanotum, and dorsum of the propodeum are. inthe male, entirely black and in the female only the scutellum bearslateral spots. On some females there are yellow spots on the posteriorsurface of the propodeum. The male is also distinguished by thelarge, long, curved, sharp-pointed process on the second sternite.The fascia on the first tergite on both sexes is always narrower thanthe others and is always more or less widely interrupted, but any ofthe other fasciae may be weakly connected or all may be interrupted.The third, fourth, and fifth are most frequently connected at themidline.In the collection of tlie United States National Museum there areeight males and eight females of this species, all from Porto Rico.
120 PROCEEDINGS OF THE NATIONAL MUSEUM VOL.73The specimens on which I based my description of B. foxL accordingto the labels they bear, were from Illinois. Is it possible that theplacing of the labels upon these specimens is the result of a mistake?BEMBIX NIPONICA SmithFigure 145Bemhex niponica Smith, Trans. Ent. Soc. London, 1873, p. 194.
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Dalt.a Tobbej,Cat. Hym., vol. 8, 1897, p. 509.In the collection of the United States National Museum is a singlemale that has been determined as this species, but by whom thedetermination was made is unknown. I have compared the specimenwith the original description of the species and am convinced thatthe determination is correct. The specimen bears the label, " SapporoAgr. Coll., Dec, '96, Japan, M. Matsumura."The following is a detailed description of this male : Black
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clypeus; labrum; mandibles, except tips; anterior orbits shortenedabove; area below antennae and space between them extended up-ward; scape below (fiagella broken off); posterior orbits narrowedabove ; irregular band on posterior border of pronotum and posteriorborder of tubercles connected by a large irregular spot on side ofprothorax ; short narrow lateral lines on scutum above base of wings
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fascia on posterior border of scutellum; fascia on metanotum; nar-row, curved fascia on propodeum, interrupted at midline on itsposterior surface; small spot on posterior lateral angles of pro-podeum; small spot on mesopleura below wings; broad, continuousfasciae on tergites 1-6, that on second tergite inclosing pair of blackdiscal spots ; apex of seventh tergite ; lateral spots and median spot onsternite 2 connected by an apical line ; lateral spots and median spoton sternite 3; lateral spots on sternites 4 and 5 connected by verynarrow apical lines; large lateral spots on 6; lateral spots on 7;coxae and trochanters in part ; femora, except black line on posteriorsurface of first pair and basal black spot on anterior surface ofthird pair ; tibiae ; and tarsi ; pale grayish yellow.The middle femora are distinctly dentate. The middle tibia isangulate below, giving rise almost to a longitudinal carina. Thewings are hyaline and the second abscissa of both radiella andcubitella is present. The second sternite bears a well-developedmedian process; the sixth bears a small one and the seventh alsobears a process as well developed as that on the sixth. The seventhtergite laterally is slightly sinuate, and is abruptly narrowed towardthe apex, which is squarely truncate. The spine of the eighth sterniteis short and broad, in form resembling somewhat a spearhead.Length 20 mm.
AST. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 121BEMBIX FLAVESCENS SmithBembex flavescens Smith, Cat. Hym. Ins. Brit. Mus., vol. 4, 1856, p. 321.
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Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 102, 1893, p.862.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 504.Of this species I have before me two specimens, a male and afemale, received by the United States National Museum in an ex-change, but by whom they were determined is not shown. They agreequite closely with Handlirsch's description of the species. The malediffers from Smith's description of the male only in the absenceof discal lines on the scutum. They bear a common label, " Gomera(Canar. Ins.), Hintz V. 15. IV. 98." This species has been reportedonly from the Canary Islands.
I BEMBIX CONNEXA FoxBemhex connexus Fox. Proc. Acad. Nat. Sci. Pliila., 1895, p. 360.Bembix connexa Parkek, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 115.In the collection of the United States National Museum are sixfemales that I have referred to this species. They are large androbust with the maculations bright greenish yellow. In this respectthey differ from Fox's type, on which the fasciae on the tergites arewhitish. They agree with the type, however, in having the sides ofihe thorax and propodeum extensively maculated, while having thescutum, scutellum, metanotum, and dorsum of propodeum eitherentirely black or with only minute lateral spots on the scutum andscutellum. The male is known only by the single specimen on whichFox based his description of the male of the species. The yellowcolor of this male is similar to that of occidentalis. The middlefemur is strongly dentate below; segments 7-10 of the flagellum areslightly, though evidently, spinose, "segments 7 and 8 being moreprominently so ; the processes on sternites 2 and 6 are well developedand pointed; and there are evident rounded lateral ridges on thebasal half of the sixth sternite, but they do not constitute lateralprocesses. The maculations on the dorsum of the thorax andpropodeum are somewhat more extensive than on the female.
.SPECIMENS EXAMINEDCalifornia: Los Angeles County (July, Coquillett) ; Mariposa County (Coquil-lett)
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Nwada: Reno (July 26, 1889, F. H. Hillman).Utah : South Creek, Beaver County.BEIVISIX LATIFRONS ParkerBcnibix latifrons Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 116.This species is not represented at the United States NationalMuseum. It is known only from the type (female) in the collec-tion of the University of Kansas.
122 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75SPBCIMENS EXAMINEDNhw Mesico: Albuquerque (1894, F. H. Snow).BEMBIX GRADILIS, new speciesType (male).?Black: labrum; mandibles, except tips; clypeus;scape below; lower part of frons extended upward from betweenthe antennae; broad anterior orbits shortened above; transverseseries of three spots below anterior ocellus; narrow posterior orbits;narrow posterior border of pronotum continued on tubercles; spoton sides of prothorax; small lateral spot above base of wings andpair of short, narrow discal lines on scutum; lateral spots on scutel-lum ; fascia on metanotum ; short oblique lateral lines on dorsum ofpropodeum; spot on lateral angles of propodeum; small spot onmetapleura; narrow vertical line broken into two spots on meso-pleura; interrupted fasciae on tergites 1-5, all except the first moreor less broadly bisinuate on anterior border ; lateral spots on sternites2-5, decreasing in size from two to five ; conspicuous spot on anteriorcoxae; femora, except black line above on all and short line belowon second and third pairs; tibiae; and tarsi; yelloio. The lateralspots on the scutellum and fascia on metanotum are wliite.The flagellum is black above, somewhat testaceous below, and itssegments are all without modifications. The middle femora areweakly dentate below. The second sternite bears a median longi-tudinal carina that may be regarded as a poorly developed tubercle.The sixth sternite bears a small, short, sharp-pointed, median processand the seventh is carinate on the midline. The wings are hyaline.The pubescence is normal in development, being longest on head,thorax, and propodeum. The paratype differs from the type inlacking discal lines on the scutum and spots on the lateral anglesof the propodeum, and in having the maculations on the mesothoraxreduced.This species runs in Handlirsch's table to B&iiibex inops Hand-lirsch and it is possible that this may be only a yellow form ofthat species. All maculations, except those on the scutellum andmetanotum, are bright yellow and the genital stipes in form differssomewhat from the figure given by Handlirsch of the stipes of inops.Length 16 mm. Described from two males (type and paratype)bearing the label, " Paso del Libres Carrientes, Argentina, January12-14, 1920, Cornell Univ. Exped."Type.?In the collection of Cornell University.BEMBIX SPINOLAE LepeletierBenibex spinolae Lbbeilbtiee, Hist. Nat., vol. 3, 1845, p. 227.Bembex fasciafa Dahlbom, Hym. Eur., vol. 1, 1845, p. 487.
ART. 5 GEXERIC REVISION OF THE FOSSORIAL WASPS PARKER 123Bemhex spitwlae Handlirsch, Sitz. Akad. Wissensch. V/ien, Math.-Nat. CI.,vol. 102, 1893. p. 285.?Fox. Proc. Acad. Nat. Sci. Phila.. ISD.l, p. 357.?Dalla Torre, Cat. Hym.. vol. 8. 1897. p. 514.licmlyix spinolae Parker, Proc. U. S. Nat. Mus.. vol. 52, 1917, p. 9S.This is the most widely distributed species of the <renns in Xoi-thAmerica. This .species, siniiJans Fox, pnniaaestate Johnson andRohwer, cameroni Rohwer, and cantata Parker form a group of ovei-lapping species that pre.^ent considerable difficulty to the studentof the taxonomy of these wasps. Typical specimens of these speciescan readily be distinguished from each of the other species, butit IS by no mean.s an uncommon occurrence to find specimens thatmay be referred to two or more of these species and can not withcertainty be referred to any one of them. This state of affairsraise's the question of the validity of some of these species, but it isa que.'ition that must depend for an answer upon more work in thefield: it is a question that can not be answered by an examination ofdried specimens stuck on pins.Bemhix spinolae occurs in the eastern part of the United Statesand Canada and has been reported in the eavst from Ontario toFlorida and in the west from the Dakotas to Texas. With the ex-ception of one report of mnilans from Florida, all the other speciesin this group are found in the mountainous western part of thecountry or on the west coast. I have, however, examined specimensfrom the western area, taken along with typical examples of comataand priinaaestate^ that must be considered examples of spinolae. Ihave examined other specimens also from the West that could notwith certaint}^, in the light of our present knowledge of this group,be referred to any one of these species. A short study of the nest-ing habits of B. comata Parker, which I made at San Franciscoduring the summer of 1925, showed that this species differs in itsmode of constructing its nest from B. spinolae Lepeletier, whosenesting habits I have studied in the District of Columbia. I amof the opinion that further studies of this kind in the field must bemade before the relationship of the species in this group and thevalidity of the species themselves can be satisfactorily determined.BEMBIX CAMERONI RohwerBemhyx cameroni Rohwer, Proc. U. S. Nat. Mu.s., vol. 41, 1912, p. 467.Bemhix cameroni Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 99.This species is somewhat more robust than spinolae and is alsomarked with maculations of much richer yellow. The males can bedistinguished from the males of closely related species by the factthat the fifth segment of the flagellum is spinose. The females maybe distinguished from those of related species by the broad yellowb
124 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75fasciae of the tergites, the maculated sixth tergite, and the absence ofmaculations on the sides of the mesothorax and propodeum. Fromnubilipennis the male of this species maj?^ be distinguished by theabsence of lateral processes on the sixth sternite and the female byits clear wings. SPECIMENS EXAMINEDArizona: Oak Creek Canon (Augnst, F. H. Snow).Mexico: Federal District (October 7 and 8, C. F. Baker).New Mexico: High Rolls (June 12. 1902) ; White Oaks (August 2, 19<)3).BEMBIX COMATA ParkerBembix comata Parker, Proc. U. S. Nat Mus., vol. 52, 1917, p. ICK).Typical forms of this species, both males and females, have thefasciae white in color and the terminal tergite maculated. The pu-bescence on the head, thorax, propodeum, and base of abdomen ismuch better developed than in the case of sjn7iolae, being long, dense,and white. Recent collections by C. L. Fox indicate that this speciesalso appears with yellow fasciae instead of white. It differs frompmnaaestate in the absence of conspicuous maculations on the sidesof the thorax and propodeum, but among the numbers collected byMr. Fox are some specimens that stand on the border line betweenthese two species, not agreeing with typical forms of either species,yet showing some characteristics of both. A brief study of thenesting habits of comata showed that this species in rearing its3'oung constructs a burrow in which it provides several brood cham-bers, one for each egg deposited. In this respect it differs fromspinolae^ which species constructs a new burrow for each egg depos-ited ; that is, rears only a single young in each burrow.SPECIMENS EXAMINEDCalifobnia: Claremont ; Los Angeles County (Coquiilett) ; San Francisco (July,1925, J. B. Parker).Nevada: Reno (August 30, 1889, F. H. Hiilman).NE^v Mexico.Obejgon: Forest Grove (July 21, 1918, M. C. Lane) ; Van Sickle Canyon (.Sei>-tember 13, 1904, E. S. G. Titus)
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Washington: Kahlotus (August 18, 1920, M. C. Lane) ; Lake McElroy, Poha(July 20, 1920, I\L C. Lane) ; Spokane (July 7, 1924, J. M. Aldrich) ; Strat-ford (September 3, 1920, M. C. Lane).BEMBIX PRIMAAESTATE Johnson and RohwerBemhex prlmauestatv Jounsoa and Rohweb, Ent. News, vol. 19, 190S. p. 37S.
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RoHWEB, Proc. U. S. Nat. Mus., vol. 41, 1912, p. 466.Benibix primaacstate Pakkee, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 101.This species seems to be intermediate between the eastern spinolaeand the western comata. The females must be separated from
ART. o GENERIC REVISIOX OF THE FOSSORIAL WASPS?PARKER 125
apiru/la-e on the color and extent of the maculations, and it frequentlyhappens that specimens are taken that can not with certainty bereferred to either species by the use of any keys so far deviled.Likewise many males are found that seem to be intermediate be-tween this species and the males of svtnilams Fox and thus present thet^ame difficulties in identification. Consequently no keys, even theone I have prepared herewith, can be depended upon absolutely inmaking identifications among these closely related species.SPECIMENS KXAMIN'EDAlberta: Medicine Hat (August 20, 1916, Sladen).Arizona: Oak Creek Canyon (F. H. Snow).BRmSH Columbia: Vancouver (Augu-st 9, 1916, Livingston^.Colorado: Boulder (September 13, 1907, S. A. Rohwer) ; Denver (.Tune 1.3,1902 >.Idaho: Springfield (July 30, 1906, S. A. Snyder).Loui!^iana: East Point (September 5, 1907, F. C. Bishopp).Mexico: Guadalajara (June 19, 1903, McCIendon).Ne\'ada: Reno (August 28, 1889, F. H. Hillman).New Mexico: Fort Wingate (July 15, 1909, John Woodgate) ; High Rolls (June11, 1902).Texas: Midland (June 16. 1909, F. C. Bishopp); Rosser (August 23, 1905,F. C. Bishopp) ; Victoria (September 11, W. A. Hooper).AVashingtox: Friday Harbor (June 19-26, 1909); Olga (.July 15-31, 1909);Seattle. * BEMBIX SIMILANS FoxFigure 28Bemli/ex simUans Fox, Proc. Acad. Nat. Sci. Phila., 1895, p. 358.Bembix simUatis Parker Proc. U. S. Nat. Mus.. vol. 52, 1917, p. 103.In this species both males and females have yellow maculations, inthis respect resembling ca7neroni. According to Fox's descriptionof this species, the fifth segment of the flagellum is " dentate be-neath." On none of the specimens that I have referred to thisspecies do I find this to be true. B. cmneroni alone of this group ofclosely related species has the fifth segment of the flagellum spinosebeneath. The maculations on the sides of the thorax and propodeumare more extensive than on any other species of this closely relatedgroup. The specimens on which Fox based his description of thespecies were taken at Las Cruces, N. Mex.SPECIMENS EXAMINEDFlorjda : Jacksonville (April, L. O. Howard).Kansas.Mexico: San Jose de Guiiymas (April 10, L. O. Howard).New Mbisko: Mesilla Park (C. N. Ainslie) ; Las CiTices (August 30, Townsend).
126 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75BEMBIX LIBERIENSIS. new specie*Figures 119-122Type (male).?Black: labrum; mandibles, except tips; ciypeu^,except a pair of large basal spots; spot on lower side of scape; pos-terior orbits narrowed above and not reachino- the vertex; pair ofsmall dorsal spots on posterior border of prothorax ; spot on side ofprotliorax; small spot on lateral angle of propodeiim; widely sep-arated lateral spot on first tergite; interrupted fascia abrupth' nar-rowed medially on second tergite ; continuous fasciae on tergites threeand four, biemarginate anteriorly and deeply emarginate on posteriormedian line; interrupted fascia on tergite 5; pair of small lateralspots onsternite 2; spots and stripes varying in size on tlie legs;pale yelloic.The flagellum is entirely black. Segments 8 and 9 are spinose andsegments 7-12 show light-colored specialized areas on posterior side.The apical segment is longer than the eleventh ; in fact, is almost aslong as eleventh and terith combined ; it is slightly curved and roundlypointed at the apex. The legs show no special modifications. Thesecond sternite bears a small, sharp-pointed, median process and thesixth bears a larger, bluntly pointed, median process near the apexof the sternite. The sixth also bears a pair of conspicuous, curved,lateral carinae. The seventh sternite bears q^pair of lateral, parallelcarinae that do not extend to the apex of the sternite.Allotype.?-Black: labrum. except lateral bordei's basally; mandi-bles, except tips; apical border of clypeus; trace of anterior orbits;posterior orbits ; obscure spot on lower side of scape ; pair of smalldorsal spots on posterior border of pronotum ; spot on side of pro-thorax; vertical line on mesopleura; lateral angle of propodeum:widely separated lateral spots on first tergite; interrupted fa.sciae. ailnarrowed medially, on tergites 2-5, the interruption being wide onthe second tergite and very narrow on the fifth; small lateral spot.son sternites 1-5 ; stripes on femora, tibiae, and tarsi of all legs ; paletoiled yellow.The seventh tergite on the male is triangular in outline, narrowand truncated at the apex, whereas on the female it is rounded at theapex and is finely and uniformly punctate, except toward the apex,where the punctures are coarser and more .scattered. The extremeapical portion is without punctures.Length, 23 mm. Described from one male and one female from.Liberia, Africa. The two specimens are in poor condition so that theexact shade of the maculations is uncertain.Type and allotype.?i^ai. No. 40845, U.S.N.M.
ABT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 127BEMBIX ALBATA, new speciesFigures 85, 86Type (male).?Black: clypeus; labrum; mandibles, except tips;spot between antennae ; scape, except broad line above ; broad anteriororbits shortened above ; spot on tegula ; short, narrow line on scutnmabove tegula; broad, continuous fasciae on termites 1-6, the first witha relatively deep, rounded anterior emargination, remaining fasciaeeach with a broad, shallow anterior emargination whose border isweakly trisinuate; seventh t?rgite entirely; broad, continuous fasciaeon sternites 1-6; seventh entirely; femora apically, more extensivebelow than above; tibiae, except spot below on first and second pairs;and tarsi ; iialc yellow.The fasciae on the tergites are exceedingly pale, almost white;those on the sternites are more yellowish, resembling the yellow ofthe legs. The intermediate femora are neither serrate nor dentateand the intermediate tibiae and metatarsi are normal. The anterioj-metatarsus is provided with six cilia or spines. The second sternitebears a median, small, thinly compressed, sharply pointed process.On the sixth there is a peculiarly swollen area, somewhat triangularin outline with the apex on the midline near the apical border of thesternite. The segments of the flagellum lack evident spines or exca-vations. Genital stipes as in Figure 85,The maculations of the allotype (female) are identical with thoseof the type, except that (1) on the tubercle there is a yellow spotthat is extended downward on the posterior margin of the prothorax,(2) the yellow on the legs is more extensive, there being no blackpresent on the middle tibiae, and (3) the basal border of both thesixth tergite and sixth sternite is black.The wings on this species are hyaline. The frons is broad and theinner eye-margins are parallel. The mandibles are slender and theteeth on the inner margin are so much reduced that the mandiblesare approximately edentate. The head, thorax, first three segmentsof the legs, the popodeum, and the basal part of the first abdominalsegment in both sexes are covered with long, dense, hoary pubescence,giving to this species a vestiture much like that possessed by somebees.Length, 14-17 mm. Described from five males and three females,each of which bear the label " Liideritz-Bucht, XII, 1903, L.Schultze, S."Type.?In the Zoologisches Museum der Universitat, Berlin.
128 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 75BEMBIX ZONATA KlugBembex sonata Klug, Waltl : Reise d. Tirol, etc., 1835, p. 96.
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Handliksch, Sitz.Akad. Wissensch. Wien, Matb.-Nat. CI., vol. 102, 1893. p. 712.?Dalla Torbe,Cat. Hym., vol. 8, 1897, p. 515.The male of this species may be readily recognized by the unusualdilation and flattening of segments 2-4 of the anterior tarsus; by thepeculiar form of the middle metatarsus, the proximal half beingflattened in one plane and the distal half flattened in another planealmost at right angles to the first ; by the peculiar form of the processon the sixth sternite, which extends entirely across the sternite ; andby the two very prominent carinae on the seventh sternite. On bothmale and female the fasciae on the tergite are continuous and sternites2-5 are wholly yellow. On the female the sixth tergite and sterniteare maculated and the sides of the propodeum and thorax, as well asthe mesosternum, are almost entirely yellow.This species is found in Spain, Portgual, and southern France. Ihave before me a male and a female determined by Mercet. Thefemale bears the label ''Los Molinos [Spain], G. Mercet," and themale the label "Madrid [Spain], G. Mercet."BEMBIX FORMOSANA BischoffBemHx formosana Bischoff, Deutsch. Ent. Zeitschr., Ileft. 7, 1923, p. 714.Of this species I have two specimens, a male and a female, bothidentified by Bischoff. The male bears the label " Formosa, Takao.26.9.07, Sauter S. V.," and the female the label " S. Formosa, Takao,7.8.1907, H. Sauter S. V." Judging by these labels and the datagiven in the original description of the species, I presume these speci-mens are from the number which Bischoff had before him when hedescribed the species.BEMBIX KRIECHBAUMERI HandlirschFigures 113, 114Bembex krieschbaumeri Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat.CI., vol. 102, 1893, p. 816.?Dalla Tokre, Cat. Hym., vol. 8, 1897, p. 507.I have before me a single male that I have referred to this species.It bears the label, " Togo, Frau Geh. Kat Dowitz G." The antennais without spines or excavations; the posterior border of the middlefemur is plain, being neither serrate nor dentate; there is a long, low,median, longitudinal carina on the second sternite; the sixth sternitelacks a true process, but there is a median, rounded elevation near theposterior end; the seventh tergite bears a prominent, median, longi-tudinal carina. A pair of short, narrow discal lines is present on thescutum; a fascia on posterior border of scutellum; a curved fasciaon the propodeum; broad continuous fasciae on tergites 1-5, the
ART. 5 GENERIC REVISION OF THE FOSSORIAL. WASPS?PARKER 129
second including a pair of black spots; the sixth tergite bears amedian spot. The pubescence is white and is well developed on thehead, thorax, and propodeum. On the tergites the pubescence is hneand short on the anterior part of the abdomen, but increases in lengthposteriorly until on tlie sixth and seventh tergites it is quite long andconspicuous.Handlirsch gives the distribution of this species as follows:
" Neider-Guinea : Cap Lopez, Junk River, Gabun, Landana, Chin-choua und Vista an der Congomiinding."BEMBIX RAPTOR SmithBenibex raptor Smith, Cat. Hym. Brit. Mus., vol. 4, 1856, p. 326.
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Handlirsch,Sitz. Akad. Wissen.scli. Wieu, Math.-Nat. CI., vol. 102, 1893, p. 901.?DallaToBBB, Cat. Hym., vol. 8, 1897, p. 511.?TimNEn, Ann. Mag. Nat. Hist., ser.8, vol. 16, 1915, p. 446.I have before me a male and a fernale that, in Turner's " Key to theAustralian Species of Bembex," nm to this species. The male con-forms quite closely to Smith's description of the species. The scutumbears a broken U-shaped discal mark, which shows only a trace offuscous. The propodeum above is black. The black on the clypeusis confined to a narrow dorsal border. The antenna is without modi-fications. The sixth tergite is truncate at the apex and also plainlyemarginate. This specimen bears the label, " Gordonvale, N. Q., J. F.lllingworth. Coll. Ex."Of the female the prothorax, the sides of the mesothorax, meta-thorax, and propodeum are entirely yellow. There is a prominentU-shaped discal mark (decidedly rufous) on the scutum, prominentfascia on scutellum, metanotum, and propodeum. The fasciae ontergites 1-5 are broad, the first notched at the middle on the anteriorborder, the others at the middle on the posterior border, and all moreor less bisinuate on the anterior border. The sixth tergite bearsconspicuous lateral spots. Sternites 2-5 really bear broad fasciae,which are all but interrupted by large black spots that occupy themiddle areas of the sternites. Sternite 6 bears lateral spots. Thepunctures on the black area of the second sternite are very large andnot closely placed. The specimen bears the label, " N. W-Australien,Carlshalton, E. Clement S. V." Turner reports this species as themost common one of central Australia.BEMBIX BRULLEI GucrinBembex brullei Guerin, Voyage de la Coquille, Zool., vol. 2, 1830, p. 253.?Handliesch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 102, 1893,p. 835.?Daula Tokre, Cat. Hym., vol. 8, 1897, p. 503.The male of this species, with its black thorax and propodeum,richly pubescent and with few or no maculations and with its shining22764?29 9
130 PROCEEDINGS OF THE NATIONAL, MUSEUM vol.75black abdomen and bright yellow fasciae confined to tergites 2-4, canscarcely be confused with any other American species. Except onthe tergites, the maculations are pale. The fasciae on the tergitesare usually all interrupted, but on some specimens that on the firsttergite or those on the first and second are continuous. On one malethere are small, yellow spots on the fifth tergite. The antenna iswithout structural modifications. The anterior metatarsus bearsseven spines. The middle femora are smooth. The second sternite,although sometimes slightly carinate, is without a process; the sixthbears a small, median process that on some specimens is obsolete.The seventh is distinctly carinate on the midline.The female appears under two forms: one has the fasciae on thetergites, the lateral spots on the sternites, and to a greater or lessextent the legs also, bright yellow ; while the other has the macula-tions on all parts of the body pale. With respect to the pattern ofthe maculations there is no essential difference between the two forms.Data derived from the specimens before me show that males and bothforms of the female have been taken at the same place on the samedate. The species seems to be confined to Chile.SPECIMENS EXAMINEDChile: Angol (1924, Det. Rohwer) ; Merimar (February, 1921) ; Santiago(February, 1921, A. Faz ; 1923, Fr. Claude Joseph, Det. Herbst) ; SouthernPart (M. J. Revera). BEMBIX PRIUNOSA FoxBetnbex pruinosa Fox, Proc. Acad. Nat. Sci. Phila., 1895, p. 361.liembix pruinosa Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 104.This is a well-marked species, one not likely to be confused withany other species thus far described from North America. On bothsexes the maculations are white and relatively broad. The smoothmiddle femora, the absence of processes on the second and sixthsternites, and the reduction of the seventh sternite to a spine groovedon its ventral surface form a combination of characters that dis-tinguish the male of this species. The female is distinguished by ablack basal area on the clypeus (rarely obsolete) ; by fasciae (some-times broken) on scutellum, metanotum and propodeum; and by thelack of any tendency in the fascia on the second tergite to inclosea pair of black spots. SPECIMENS EXAMINEDCalifornia: Mount Sha.sta Di.strict.Canada: (C. F. Baker).Floeida.Iowa: Dubuque (August 25, 1872) ; Muscatine (August 8, 1889, Witter).Kansas: Riley County (September, Marlatt).
ABT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS?PARKER 131Louisiana: East Point (October 7, 1907, F. C. Bishopp).New Mexico: Albuquerque.New York.Ohio: Cedar Point (August, J. B. Parlier).Oregon.Texas.Fox reports this species also from Camden County, N. J.BEMBIX COMANTIS, new speciesFigure 222Male.?Black: clypeus; labrum; base of mandibles; scape below;space between antennae; small spot on either side of anterior ocel-lus; anterior orbits, broad below, shortened above; narrow posteriororbits abbreviated above; lateral spot on prothorax joined with spoton tubercle ; fascia on pronotum ; short lateral line on scutum abovebase of wing; narrow fascia on posterior border of scutellura; verynarrow fascia (almost obsolete) on posterior border of metanotum;pair of triangular spots on posterior surface of propodeum; smallspot on lateral angle continuous with spot on side of propodeum;pair of spots on metapleura ; small spot on mesopleura ; broad, con-tinuous fasciae on tergites 1-5; first with broad medial anterioremargination, deepest at midline; second, third, and fourth eachwith broad anterior emargination and slight median notch; fifthwith shallow anterior biemargination ; median spot on sixth tergite
;
tip of seventh ; lateral spots on sternites 2-4, those on 2 and 3 con-nected by narrow apical lines; spot on anterior coxa; femora inpart; tibiae, except line on first pair; and tarsi; fdle yellmo.The pubescence is white, long and dense on head, thorax, propo-deum, and first segment of abdomen. The mandibles bear only asingle weak tooth. The flagellum is black above, testaceous below;it shows no special modifications that can serve as specific charac-ters. The legs show no special developments. The second sternitebears a weakly developed madian carina and the sixth is plain.Length about 18 mm. Described from a single male from Rio deJaneiro, Brazil.Type (male).?In the Carnegie Museum in Pittsburgh, Pa.BEMBIX BEUTENMULLERI FoxBembex beutenmulleri Fox, Journ. N. Y. Ent. Soc, vol. 9, 1901, p. 83.Bemhex obsoleta Howard, Insect Book, 1904, pi. 4, fig. 36.Bemhyx ohsoleta Rohwer, Proc. U. S. Nat. Mus., vol. 41, 1912, p. 467.Bembix heufenmuUeri Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 105.The male of this species resembles the male of the pi'uinosa in hav-ing the seventh sternite developed in the form of a grooved spine,but differs from that species in having the maculations greatly re-
J32 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75duced and yellow in color, and in having a pair of small, approxi-mated processes on tlie sixth sternite. This combination of secondarysexual characters distinguishes it from the male of hinei Parker,to which it has a superficial resemblance. The female of this speciescan be distinguished from the female of hinei by the character of theinner eye-margins,' which on this species are distinctly divergent attke clypeus. SPECIMENS EXAMINBDCalifornia: Los Angeles County (Coquillett).BEMBIX OCCIDENTALIS FoxBembex occidentalis Fox. Proc. Acad. Cal. Sci., ser. 2, vol. 4, 1893, p. 10.
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Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 102, 1893,p. 868.?Fox Proc. Acad. Nat. Sci. Phila., 1895, p. 362.?Daixa Tokre, Cat.Hym., vol. 8, 1897, p. 509.Bembix occidentalis Parker, Proc. U. S. Nut. Mus., vol. 52, 1917, p. 106.Like the males of ppuinosa and beuterwiuUeri, the male of thisspecies has the seventh sternite developed in the form of a groovedspine, and like beutenfnuUeri, it has a pair of small, approximatedprocesses on the sixth sternite. This species, in both sexes, is con-spicuous for its extensive yellow maculations. The inner eye-marginson both sexes are divergent at the clypeus. The mandibles are slen-der, almost straight, and, even on the female, almost devoid of teethon the inner margin. SPECIMENS EXAMINEDArizona: Bill Williams Fork (August, F. H. Snow) ; Phoenix; Yuma (August14, 1905, H. Brown).California.LowHUi Cali^-ouma : San Jose del Cabo.New Mexico: (C. F. Baker).Oregon: Van Sickle Canyon (September 13, 1904, E. S. G. Titus).BEMBIX INFUMATA HandlirschBembex infumata Handlirsch, Sitz. Akad. Wissensch, Wien, Math.-Nat. CI.,vol. 102, 1893, p. 841.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 506.Bembex iiubilipennis CAMEiiON, Biol. Centr.-Amer., Hym., vol. 2. 1888-1890, p. 101(misidentification )
.
The male of this species has the wings almost clear, while thewings of the female are distinctly infumated at the base. On bothmales and females the maculations are almost white. The secondand sixth sternites of the male bear conspicuous processes and thesixth bears, in addition to the median process, a pair of well-devel-oped lateral processes. Onlj'^ three specimens of this species arefound in the United States National Museum, a male and a female
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 133bearing the label, "Guadalajara, VII, 27, Jal. Mex., McClendon,"and a second male bearin?f only the label, "Mexico." Handlirschbased his description of the species on three females from Guana-juato, Mexico. BEMBIX LITTORALIS TurnerBembex littoralis Tubner, Proc. Zool. Soc. Lond., 1910, p. 353.I have before me a single male of this species determined by Turnerand bearing the label, " Port Darwin, 12 '02." The clypeus, except avery narrow apical border, is black and the frons, except a small areabetween the antennae and a small spot on each side the anterior ocellus,is likewise black. The thorax, except the narrow posterior border ofthe pronotum and the tubercles, and the propodeum are entirelyblack. The maculations on the abdomen are limited to widely sepa-rated narrow fasciae on tergites 2-5 and lateral spots on sternites2-4. The antennae are without structural modifications, the middlefemora are smooth below, the second and sixth sternites bear proc-esses, and the seventh tergite is triangular in outline and roundlypointed at the apex. BEMBIX INOPS HandlirschBembex inops Handlirsch, Sitz. Akad. Wissensch, Wien. Math.-Nat. CL, vol.102, 1893, p. 833.I have before me a male and a female of this species identified byHandlirsch and obtained by the United States National Museum asan exchange. They bear the labe^, " Ihering, Rio Grande, Brasil."As pointed out by Handlirsch, this species closely resembles Bembixrrvultipicta Smith, of which species it may prove to be only a regionalvariety. BEMBIX MULTIPICTA SmithBembex multipicta Smith, Ann. Mag. Nat. Hist., vol, 12, 1873, p. 300.
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Hand-lirsch, Sitz. Akad. Wissensch, Wien, Math.-Nat. CL, vol. 102, 1893, p. 831.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 509.The fasciae on all tergites on both sexes are interrupted and thaton the second incloses, more or less perfectly, a pair of black discalspots. On all specimens before me the scutum bears a pair of narrowdiscal lines, much reduced on one female. On the specimens fromMexico (two males and two females) the maculations on the thorax,propodeum, and abdomen are white. On a single female from Brazilthe maculations are yellow, those on the tergites, the metanotura anddorsum of propodeum being pale yellow. The three females agree inhaving a more or less well developed dusky spot above on the apicalsegment of all tarsi. The black on the legs is much more extensiveon the female from Brazil than on those from Mexico.
134 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75SPECIMENS EXAMINEDBrazil: Diamantinas, Minas Gereas (November 14-18, 1919, Cornell UniversitjExpedition )
.
R[Exico: Atencingo (June 1, 1922, E. G. Smyth) ; San Rafael, Jicoltepec;Tuxpan, Jalisco (September 3, McClendon).Handlirsch reports this species also from Guatemala ; Demerara
;
Bogota ; and Monta, Peru.BEMBIX FLAVOLATERA, new speciesFigures 94, 95Tyj>e (male).?Black: labrum; mandibles, except tips; lower partof frons prolonged by a narrow line upward to meet a transverseseries of three spots below anterior ocellus; broad anterior orbitsshortened above ; scape below ; posterior orbits narrowed above ; pro-thorax except narrow line in front of tubercles; broad lateral linesand pair of conspicuous discal lines on scutum; triangular lateralspots on scutellum; minute lateral spots on metanotum; sides ofpropodeum (but not lateral angles) ; large spot on metapleura; meso-pleura almost entirely; fasciae on tergites 1-4 interrupted, those on5 and 6 continuous ; fascia on first tergite narrowest and most widelyinterrupted; fasciae on tergites 2, 3, and 4 broadly bisinuate onanterior dorsal border ; fasciae on 5 and 6 acutely emarginate at mid-line on posterior border; second sternite, except narrow median lineterminating on anterior border of tubercle and small pair of basallateral black spots; third and fourth sternites almost wholly; broadfascia on fifth ; apical fascia on sixth ; coxae and trochanters more orless; femora, except black line on posterior surface of first pairand basal part of third ; tibae, except narrow line above on all ; andtarsi ; yellow or white. The white is limited to the apical fascia on thesixth sternite and to the fasciae on the tergites, of which those ontergites 1-3 show traces of yellow on their anterior margins, andparticularly at the sides.The flagellum is black above but light colored below, and whilesome of the segments show specialized areas, none of them are exca-vated or spinose. The terminal segment is only slightly curved andat the apex is roundly truncate. The second sternite bears a large,median tubercle or process, whose apex is curved posteriorly andsharply pointed. The sixth sternite bears a broad triangular raisedurea, whose apex on the median line can scarcely be called a point.The middle femora are plain. The anterior metatarsus bears sevenspines, of which the basal one is small. The wings are hyaline andthe second abscissa of the cubitella is lacking. The pubescence onhead, thorax, propodeum, and base of abdomen is white and some-what longer than is usually the case in this genus. The form of the
AET. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 135apex of the seventh tergite is peculiar, as is shown in Figure 95. Theseventh sternite is narrowed and rounded at the apex and is carinateon the midline.Length about 15 mm. This species is closely related to B. littoralisTurner, with which it agrees in the character of the genitalia, theantennae, the processes on the sternites, and the wings. It differsin the form of the seventh tergite and particularly in the extent of itsmaculations. It is also somewhat larger than littoralis. If it werenot for the great difference in the extent and in the color of the macu-lations, I should be inclined to consider this individual only a varietyof littoralis, which, according to Turner, is a variable species. De-scribed from a single male bearing the label, " S. Australien, Her-mannsburg, Finke River v. Leonhardt G."Type.?In the Zoologisches Museum der Universitat, Berlin.BEMBIX AGRESTIS, new speciesFigures 80-82Type (male).?Black; labrum; clypeus; mandibles, except tips;short, broad anterior orbits; spot on either side anterior ocellus;space between antennae; scape below; posterior orbits not reachingvertex ; narrow line on posterior border of pronotum ; apical half oftubercle; minute lateral spots on posterior border of nietanotuminterrupted fascia on propodeum, broadest on posterior surface ; con-tinuous fasciae on tergites 1-6, the first narrow and somewhat sinu-ate, second inclosing a pair of dorsal black spots, third, fourth, andfifth broadly biemarginate on anterior dorsal border; median spoton seventh tergite extending to apex ; lateral spots on sternites 2-6
;
median spot on second sternite; femora in varying degree; tibiae,except large spot below on ail ; and tarsi ; yelloicish white.The flagellum is pale beneath and shows no special modifications,being neither spinose nor excavated. The middle femora are neitherserrate nor dentate. The second sternite bears a median, laterallycompressed tubercle whose sides are provided with numerous hairsas is the surface of the sternite generally. The sixth sternite bears abluntly pointed, triangular median process and the seventh, whoseapical border is emarginate at midline, bears a conspicuous mediancarina. The seventh tergite is truncate at the apex.The allotype (female) resembles the type very closely in its macu-lations. The color is more yellowish than on the type. There is aspot on side of prothorax connected with spot on tubercle; a con-spicuous spot on mesopleura; spot on side of propodeum. The sixthsternite is black. The sixth tergite is narrowed and rounded at theapex and the sides are only slightly sinuate. On its sides are found
136 PfiOCEEDINGS OF THE NATIONAL MUSEUM vol.75
a series of short, stout, spinelike hairs, among which are numerouslong slender hairs, but neither extend to the apex.The wings on this species are hyaline. The pubescence is normal,being most conspicuous on propodeum and ba.^e of first abdominalsegment. There is a slight carina between the antennae and theanterior metatarsus is provided with six spines.Length 16 mm. Described from one male and one female, eachof which bears the label "Abessinien Eritrea bei Asamara, 2.III.13,Dr. Klass, S. G."Type.?In Zoologisches Museum der Universitat, Berlin.BEMBIX TEXANA CressonBembew texana Cbesson, Trans. Amer. Ent. Soc, vol. 4, 1872, p. 219.
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Hand-LiBSCH, Sitz. Akad. Wissenscb. Wien, Math.-Nat. CI., vol. 102, 1893, p. 830.?Dalla Tobee, Cat. Hym., vol. 8, 1897, p. 514.Bembix texana Pabkeb, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 111.On this species, both males and females, the maculations are white,sometimes slightly tinged yellowish. The wings are almost hyaline.The fascia on the second tergite incloses, sometimes completely, some-times incompletely, a pair of black discal spots. On the clypeus ofthe female are invariably present a pair of black basal spots thatvary in prominence on different specimens. The dorsum of the pro-podeum and the metanotum are without maculations and those on thescutellum and scutum are limited to small lateral spots. The middlefemora of the male are smooth beneath.SPECIMENS EXAMINEDAbkansas : Daleville (September 13, 1904, C. R. Jones).Florida: Crescent City (April 28, 1908, Van Duzee) ; Enterprise (May 16);Jacksonville (Asbmead) ; La belle (April 27, 1912) ; Lake Harney (May3) ; Sanford (April 30, 1908, Van Duzee).Georgia: Billy's Island, Okefenoke Swamp (June, 1912); Spring Creek (July16-19, 1912) ; Tifton (May 6, 1896).Louisiana: Fuierson (July 6, 1903, A. W. Merrill) ; Logansport (June 8, 1906,W. D. Pierce) ; New Orleans (July).Netvv Mexico.Texas: Dallas (June 2, 1907, W. W. Yotbers) ; Rosser (June 28, 1905, C. R.Jones). BEMBIX MELANASPIS ParkerBembix melanaspis Parker Proc. U. S. Nat. Mus., vol. 52. 1917, p. 109.Through its infumated wings and extensive yellow maculationsthis species resembles nuhilipemiis, but the two species are quitedistinct. On the male of this species the flagellum is neither spinosenor dentate, the middle femora are smooth below, the sixth sternitelacks small lateral processes, and the genitalia are different from
IART. 5 GENEEIC REVISION- OF THE FOSSORIAL WASPS PARKER 137those of nubilip&miis. The female can readily be distinguished fromthe female of nuhUipennis by the presence of black, more or lessextensive, on the clypeus, which on nuhUipennis is entirely yellow.Arizona: (C. F. Baker).Caufobnia: Bard (August 14, 1920, H. R. Reed) ; Los Angeles Couuty (Coquil-lett) ; San Bernardino County (Coquillett).BEMBIX TROGLODYTES HandlirschBembex troglodytes Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI.,vol. 102, 1893, p. 829.?Dalla Toree, Cat. Hym., vol. 8, 1897, p. 515.Bembi<p troglodytes Parker. Proc. U. S. Nat. Mus., vol. 52, 1917, p. 108.This species and the following one {helianthopolis) are closelyrelated and are not likely to be confused with any other NorthAmerican species. On both species the antennae of the males areplain, neither spinose nor excavated, the middle femora are smoothbelow, and the fasciae on the tergites, except that on the first, arecontinuous, and that on the second incloses, either perfectly or im-perfectly, a pair of black discal spots. Troglodytes is much moreslender in build than spvnolae and its related species. The macula
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tions are yellow.Of the 11 specimens on which Handlirsch based his descriptionof this species, 3 bore the label " Mexico." Apparently the localityfrom which the other specimens were obtained was unknown.SPECIMENS BXAMINBDArizona: (C. F. Baker).New Mexico: Las Cruces (August 27, Townsend).Texas: Austin; Cypress Mills (Ashmead) ; Huntsville (C. Hartmann).BEMBIX HELLANTHOPOLIS ParkerBembix helianthopoln Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 113.This species is closely related to troglodytes^ as was pointed outabove. The male may be distinguished from the male of troglodytesby the lack of discal marks on the scutum, lack of maculations on thedorsum of the propodeum, and by the difference in the form of thegenital stipes. The females of the two species are separated on thedifference in their maculations: helianthopolis has the labrum (ex-cept sometimes the extreme lateral margins), the scape, and thesixth tergite black; troglodytes has these part yellow or conspicu-ously maculated with yellow.SPECIMENS BXAMINBDKansas: Barber County (1916, R. H. Beames).Texas: Victoria (July 15, 1915. J. D. Mitchell).
138 PROCEEDINGS OF THE NATIONAL, MUSEUM vol. 75BEMBIX BAHIAE. new speciesFigure 90Tyfe (male).?Black: labrum; mandibles, except tips; clypeus;scape below ; area between antennae extended upward ; pair of spotsbelow anterior ocellus; broad anterior orbits shortened above; pos-terior orbits narrowed and shortened above; posterior border ofpronotum; sides of prothorax, except large irregular spot in frontof tubercle connected with black of pronotum; short, lateral linesabove tegulae on scutum ; pair of conspicuous lateral spots on scutel-lum; narrow, interrupted fasciae on metanotum; irregular spot onlateral angles of propodeum; metapleura; larger spot above andsmaller spot below on mesopleura; broad fasciae on tergites 1-7;fasciae on tergites 1 and 5 narrowly interrupted at midline; fasciaeon tergites 2-4 biemarginate on anterior dorsal border and deeplynotched at midline on posterior border; lateral spots on sternites2-5; greater part of femora; tibiae; and tarsi; yello'W or white.Maculations on posterior border of pronotum and on scutellum andmetanotum are white ; elsewhere they are light yellow.The clypeus is strongly and roundly arched and is scarcely carinateat the base. The frons is wide and between the antennae is weaklycarinate. The inner eye-margins are parallel. The flagellum isblack above, testaceous below, and none of its segments are spinoseor excavated. The anterior metatarsus bears six spines and themiddle femora are neither serrate nor dentate. The second sternitebears a small, thin, laterally compressed process and the sixth a nar-row, triangular, sharply pointed process. The seventh sternite bearsa median longitudinal carina that terminates at the apex of thesternite in a process much resembling that on the second sternite.The apex of the seventh tergite, is broadly triangular and roundlypointed. The pubescence is normal and the wings are hyaline.Length 15 mm. Described from a single male (the type) bearingthe label, " Bahia Blanca, Argentina."Tijpe.?Q^L No. 40846, U.S.N.M.BEMBIX DIVERSIPENNIS SmithBenibeo) diversipennis Smith, Ann. Mag. Nat. Hist., vol. 12, 1873, p. 297.
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Handlirsch, Sitz. Akad. Wissensch. Wien. Math.-Nat. CI., vol. 102, 1893,p. 786.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 504.?Tueneb, Ann. Mag.Nat. Hist., ser. 8, vol. 10, 1912, p. 373.I have before me two females that have been referred to this species.One bearing the label, " Togo Mangu, I. 02, G. Theirry S.," has beendetermined by Bischoff. This specimen bears well-developed fasciae
ABT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS?PARKER 139
on the scutelliim, metanotum, and dorsum of the propodeum, andwell-developed fasciae on tergites 1-5, of which only that ontergite 5 is interrupted (narrowly) ; that on tergite 1 bears a singleanterior emargination ; that on 2 bears a pair of inclosed blackdiscal spots; those on 3 and 4 are anteriorly biemarginate ; and 6 isferruginous. The other specimen bearing the label, " D. O. Afrika,Tabora, 7.08, Wintgens S. G.," differs from the first in having theclypeus yellowish; in having the ferruginous on the sixth tergitealmost obliterated; and in having the fascia on the first tergitewidely interrupted. The two specimens agree in having the antennaeferruginous, in having the clypeus and frons, except a black areaabout the anterior ocellus, predominantly ferruginous, in having themaculations of the prothorax ferruginous, in having the sides of themesothorax, metathorax, and propodeum black, in having the lateralspots on the sternites reduced or wanting, and in having the basalhalf of the wings heavily infumated. The eyes are strongly diver-gent at the clypeus.This species seems to be widely distributed over the eastern, central,and southern parts of Africa. Smith described the species fromAngola. Handlirsch reports it from Massailand, Congo, Zanzibar,and Dar-Es-Salaam, German East Africa. Turner reports it fromNyassaland, Mashonaland, and Harar, Abyssinia.BEMBIX MADECASSA SaossureBemhex madecassa Saussube, Mitth. Schweiz, Ent. Ges., vol. 8, 1891, p. 260.
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Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 102, 1893,p. 818.?Dalla Tobre, Cat. Hym., vol. 8, 1897, p. 507.I have of this species a single female determined by Kohl andbearing the label, " O Madagaskar, Tamatave, Voelzkow S., XI. 04."On this specimen the thorax and propodeum are entirely black; ter-gites 1 and 5 bear only vestiges of lateral spots; tergites 2, 3, and 4bear narrow sinuate fasciae interrupted at midline ; the sixth tergiteand the sternites are entirely black. This species seems to be confinedto Madagascar. BEMBIX VARIABILIS SmithBemhex variabilis Smith, Cat. Hym. Ins. Brit. Mus., vol. 4, 1856, p. 325.?Handlirsch, Sitz. Akad. Wissensch, Wien, Math-Nat. CI., vol. 102, 1893,p. 846.
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Dalla Torre, Cat. Hym., vol. 8, 1897, p. 515.
?
Turner, Ann. Mag.Nat. Hist., ser. 8, vol. 16, 1915, p. 446.I have before me a single female that agrees quite closely withSmith's description. It bears the label, " Cairns, N. Q., J. F. Illing-worth. Collector," This species seems to be widely distributed overAustralia.
140 PROCEEDIN-GS OF THE NATIONAL. MUSEUM vol 75BEMUIX ATRIFRONS SmithBcmbex atrifrons Smith, Cat. Hym. Ins. Biit. IMus., vol. 4, 1856, p. 327.Bemhex flavilabris Smitu, Ann. Mag. Nat. Hist., ser. 4, vol. 12, 1873, p. 299.Bembex atrifrons Turnek, Proc. Zool. Soc. London, 1910, p. 353 ; Ann. Mag. Nat.Hist., ser. 8, vol. 16, 1915, p. 441.I have at hand a single female that I have referred to this species.It differs slightly from Smith's description: the extreme ventralmargin of the clypeus and its extreme ventro-lateral angles are macu-lated ; shortened, narrow anterior orbits are present ; there are lateralspots on the prothorax united with the yellow on the tubercles ; andthere are small, round lateral spots on the scutellum. The metano-tum, propodeum, mesopleura, metapleura, the sixth tergite, and allsternites are black. The specimen bears the label, "Adelaide, BehrS." Turner reports this species from Yallingap and Busselton, WestAustralia, and also from South Perth.BEMBIX NUBILOSA. new speciesType (female).?Black: labrum; mandibles, except tips; clypeus,except pair of small basal spots, of which one is almost obsolete;area between antennae; small vertical stripe below anterior ocellus;scape below; broad anterior orbits, shortened and deflected inwardabove; narrow posterior orbits, shortened above; tubercles and nar-row posterior margin of pronotum; spot on tegula; small lateralspots on scutellum; spot on posterior-lateral angles of propodeum;short, narrow line on mesopleura ; broad fasciae on tergites 1-5, firstinterrupted medially, second and third broadly and deeply biemargi-nate on anterior border and also widely emarginate at middle onposterior border, fourth and fifth similar to second and third, butwith emarginations less well developed ; lateral spots on sternites 2-4
;
femora apically; tibiae, except line below on first and second pairs;and tarsi ; yellow or creainy white.The flagellum is black above, yellowish below, especially toward theapex. The wings are heavily infumated, the hind wings throughoutand the basal three-fourths of the front wings. The pubescence iswhite, dense, and comparatively short on head, thorax, and propo-deum. On the abdomen it is shorter but unusually well developed,especially on the tergites of the last three segments. The frons isver}^ wide and the inner eye-margins parallel. The sixth tergite iscoarsely punctate, even to the apex, giving the surface a roughenedappearance. The second sternite is finely punctured with numerouslarger punctures among the fine ones; on the midline there is anevident, though not prominent, carina. The fasciae on the tergitesare a pale creamy, almost white, color, while the legs are orangeyellow.
ABT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 141The paratype differs from the type in the absence of any black onthe clypeus; in the presence of a yellow spot on the side of theprothorax and another on the metapleura; and in the fact that thelateral spots on the scutellum form a curved fascia interruptedmedially. In Handlirsch's table this species runs to infiiinata., but itdiffers from that species in the greater infumation of the wings andin having all the fasciae on the tergites, except that on the first,continuous.Length 17 mm. Described from two females from San LuisPotosi, Mexico.Type.?In the collection of Massachusetts Agricultural College.Amherst, Mass. BEMBIX LUZONENSIS, new speciesType (female).?Black: labrum; mandibles, except tips; clypeus.except broad, black basal border ; line on scape below ; lower border offrons limited between the antennae by a black spot extending fromthe insertion of one to the insertion of the other and prolonged up-ward by a very narrow median line dividing the yellow above theantennae along the midline; spot below anterior ocellus connectedwith yellow of frons below; short anterior orbits; posterior orbitsvery narrow above; narrow posterior border of pronotum; side ofprothorax, except spot on tubercle; small spot on lateral angle ofpropodeum ; broad, vertical anterior spot on side of propodeum ; twoelongated spots on metapleura; oval posterior spot and large, irregu-lar anterior spot on mesopleura; widely separated lateral spots onfirst tergite ; continuous fascia on second tergite with wide posteriordorsal emargination that is extended into the fascia on right andleft; continuous fascia on third tergite with pair of deep, rounded,anterior, dorsal emarginations and broad, shallow, median posterioremargination; continuous fascia on tergite 4 similar to that on 3;fascia on tergite 5 interrupted at dorsal midline; small lateral spotson sternites 2-3 ; anterior coxae below ; line on anterior and posteriorborders of all femora; all tibiae above; and anterior tarsi above;pale creamy yellow.The flagellum is black. The inner eye-margins are very slightlydivergent at the clypeus. The pubescence is very short and incon-spicuous. The wings are lightly and uniformly infumated and thesecond abscissa of both radiella and cubitella is present. The an-terior metatarsus is provided with only five spines. The disk of thesecond sternite is smooth and shining and bears scattered, coarsepunctures. The sixth sternite is feebly carinate on midline and isdensely covered with very fine punctures, among which are scatteredmany coarse ones and consequently is covered with a fine pubescence.
142 PROCEEDINGS OF THE NATIONAL. MUSEUM vol.75among which are present many coarser hairs. The sixth tergite,which is bhmtly triangular and broadly rounded at the apex, is finelypunctate and covered with a fine, dense, closely appressed pubescence,among which near the lateral margins are numerous coarser andlonger hairs. The extreme apical margin is smooth and shining.Length 20 mm. Described from a single female bearing the label,
" Philippinen, Insel Luzon, RoUe V."Tyfe.?In the Zoologisches Museum der Universitat, Berlin.BEMBIX NUPERA, new speciesType (female).?Black: labrura; mandibles except tips; clypeusin part; broad anterior orbits; pair of spots on frons below level ofanterior ocellus; posterior orbits broad below and each interruptedat vertex; posterior broader of pronotum Enclosing a pair of elon-gated black lateral spots; sides of prothorax; lateral lines, pair oftransverse posterior spots and vestiges of pair of longitudinal discallines on scutum; fascia on posterior border of scutellum; fascia onmetanotum; vestiges of fascia on propodeum; large spot on side ofpropodeum (not reaching lateral angle) ; line on anterior margin ofmetapleura; two spots on mesopleura; conspicuous, continuiousfasciae on tergites 1-5, that on first slightly narrowed medially, thoseon 2-5 bisinuate on anterior border the sinuations on tergite 2 widelyseparated, the width of the separation decreasing from two to five,those on 2-4 acutely emarginate at midline on posterior border ; apexof tergite 6; fasciae on posterior border of sternites 2-5; tibiae inpart; and tarsi; a light and variable shade of yellow. Clypeus inpart; scape; flagellum below; legs, except tibiae in part and trasi;large median spot on sternite 2 almost interrupting the fascia;median transverse area between the black basal border and the pos-terior fascia practically interrupting the fascia on sternites 3-5 ; sixthsternite entirely; and basal part of the maculation on tergite 6;ferruginous.The flagellum is dusky above, being darkest toward the apex. Theferruginous is most in evidence on the basal segments of the legs andon the sternites. The clypeus on its basal half is strongly carinateand its color is a mingling of light yellow and ferruginous with abasal spot on either side the carina that is almost black. The basalportion on either side the carina is covered with short, dense,silvery pubescence. The frons is wide and carinate between theantennae and the inner eye-margins are slightly divergent at theclypeus. The anterior metatarsus is provided with seven spines.The wings are hyaline and the second abscissa of the cubitella islacking. The disk of the second sternite is smooth and shining and
ABT.5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 143
except on the midline bears numerous coarse punctures, while thoseat the sides are much finer. The sixth tergite is broadly rounded atthe apex and the sixth sternite is noncarinate. The pubescence,which is short and white, is almost lacking on dorsum of thorax andpropodeum.Length 20 mm. Described from a single female bearing the label,
" Witu Lamu, G. Denhardt G."Type.?In the Zoologisches Museum der Universitat, Berlin.BEMBIX CAPENSIS LepeletierBerribex capensis Lepelktiehi, Hist. Nat. Ins. Hym., vol. 3, p. 273.
?
Handlirsch,Sitz. Akad. Wissenscli. Wien, Math.-Nat. CI., vol. 102, 1893, p. 853.?DallaTorre, Cat. Hym., vol. 8, 1897, p. 503.To this species I have referred a single female bearing the label,
" D. S. W. Afrika, Lindt S." The clypeus is covered with fine, sil-very pubescence. In other respects it conforms very closely to thedescription of the species as given by Handlirsch, who reports itfrom South Africa (Transvaal and Capeland).BEMBIX GRACILENS, new speciesFigure 109Type (female).?Black: narrow fascia on posterior dorsal borderof pronotum, connecting large, lateral spots; tubercle and narrowline rimning downward from it on side of prothorax ; narrow fasciaon posterior border of scutellum; fascia on metanotum; interruptedfascia on dorsum of propodeum ; lateral angles of propodeum ; broadfasciae on tergites 1-5, first greatly narrowed (almost interrupted)at dorsal midline, second inclosing pair of elliptical, dorsal spots,third strongly and fourth weakly biemarginate on anterior dorsalborder; small lateral spots on sternites 2-5; yellow. Clypeus, an-tennae, except tips above; narrow line between antennae and pairof spots above them ; three spots on frons at level of anterior ocellus
;
broad anterior orbits deflected inward from eye-margins aboveanterior ocellus ; posterior orbits ; apex of sixth tergite ; apex of sixthsternite ; narrow apical lines joining yellow lateral spots on sternites2-5 ; legs for the most part ; fen^ginous. The clypeus and mandibles,as well as the lower part of the posterior orbits, are more yellowthan ferruginous. The tibiae and tarsi also show this mingling ofyellow and ferruginous and the femora at the base are marked withblack.The basal half of the wings is strongly infumated, whereas theapical part is hyaline. The pubescence is white and comparativelyabundant on head, sides of thorax, and on the propodeum. On the
144 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75
clypeus it is short, dense, and silvery. The frons is wide, weaklyearinate between the antennae, and the inner eye-margins are ap-proximately parallel. The anterior metatarsus bears six spines. Thedisk of the second sternite is shining and bears scattered, coarsepunctures. The apical part of the sixth tergite is plainly earinateat midline.In Handlirsch's table this species runs, although not accurately, toB. tricolor Dahl. It differs from that species in having no black onthe clypeus and in the absence of any maculations on the sides of themesothorax, metathorax, and propodeum. Furthermore, the wingsof this species are strongly infumated at the base, while the apicalportion is hyaline. The insect is decidedly slender in form and thesixth tergite is broadly rounded at the apex.Length 17 mm. Described from a single female bearing the label,
!' D. S. W-Afrika, 1901, Lubbert S. V."Type.?^In the Zoologisches Museum der Universitat, Berlin.BEMBIX LIVENTIS, new speciesType (female).?Black: labrum; mandibles, except tips; clypeus,except pair of large, dark basal areas; scape below; lower part offrons; pair of rounded spots below anterior^ ocellus; broad, anteriororbits barely reaching the level of anterior ocellus; broad, posteriororbits, each greatly narrowed and interrupted at vertex; prothorax,except anterior transverse dorsal spot and dusky line in front oftubercles; broad, lateral lines and pair of vary narrow, obscure,longitudinal, discal lines on scutum; narrow fascia on posterior bor-der of scutellum; very narrow fascia on metanotum; shortenedfascia on propodeum interrupted, at midline; almost the entireside of propodeum (but not the lateral angles) ; anterior portionof metapleura; mesopleura almost wholly; fascia on first tergitenarrow and interrupted at dorsal midline; fascia on second ter-gite broader, interrupted at midline and bisinuate on anteriordorsal border; fascia on third similar to that on second; fasciaon fourth similar to those on second and third, but continuous
;
fascia on fifth broken into a central and lateral spots; apical por-tion of sixth; small posterior lateral spots on sternites 2-5; apicalmargin of sternite 6 ; legs, except more or less of the coxae and trc ?-chanters, dusky spot below on middle femora, and dark one aboveand one below on posterior femora; yellows, which varies in shade ondifferent parts of the bodj^The maculations on the dorsal part of the thorax and on the abdo-men are decidedly pale, whereas those on the sides of the thoraxand on the legs show a tendency toward ferruginous. The flagellum
AHT. 5 GENEKIC REVISION OF THE FOSSOEIAL WASPS PAEKER 145
is black above, but of a light shade of ferruginous below. The innereye-margins are a trifle wider apart at the clypeus than at the vertex.The frons is broad and between the antennae strongly carinate. Thebasal half of the clypeus on the midline is also strongly carinate,while the median apical portion is somewhat flattened. Except theridge of the carina and the apical flattened part, the clypeus is cov-ered with fine, silvery pubescence. The anterior metatarsus bears sevenspines. The disk of the second sternite is shining and on either sidethe midline are scattered coarse punctures, among which are numer-ous fine punctures. Only a small, median anterior area is free frompunctures. The sixth sternite is slightly carinate on midline and isclosely covered with punctures, in which coarse and fine are inter-mingled. The sixth tergite is broadly rounded at the apex. Thewings are clear and the second abscissa of both radiella and cubitellais present, although the latter is much reduced. The pubescence onthorax, propodeum, and abdomen is of normal character. The dorsalsurface of the abdomen, when light strikes it at the proper angle,shows a beautiful, bluish iridescence, a character not commong amongspecies of this genus.Length, 20 mm. Described from a single female bearing the label,
" D. Ostafi-ika, Mikidani, II.-IV. 1911, H. Grote S. G."Type.?In the Zoologisches Museum der Universitat, Berlin.BEMBIX HEXASPILA, new speciesType (female).?Black: labrum; mandibles, except tips; spacebetween antennae continued broadly upward to join, below anteriorocellus, a transverse band that unites with the anterior orbits ; broadanterior orbits almost interrupted below junction with transverseband, but above it deflected inward to join the posterior orbits onthe vertex; scape, except black line above; posterior orbits broadbelow; pronotum; broad lateral lines and broad U-shaped discalmark on scutum ; broad continuous fascia on scutellum ; metanotum
;
broad, curved facia on propodeum covering most of its dorsal andposterior surfaces; lateral angles and sides of propodeum; meta-pleura ; mesopleura ; mesosternum, except pair of black spots anteriorto each middle coxa; very broad, continuous fasciae on tergites 1-5,all acutely emarginate at midline on posterior border, the first witha pair of rounded dorsal spots, of which one is not completely in-closed, second and third each with a pair of elliptical dorsal spots,and fourth and fifth bisinuate on anterior dorsal border; first ster-nite; second sternite, except large central black spot and pair ofsmall anterior lateral black spots; third sternite, except large medianand pair of anterior lateral black spots; fascia on fourth resembling22764?29 10
146 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75the maculation on third, but reduced in extent ; posterior lateral spotson fifth ; extreme posterior lateral edges of sixth ; legs, except blackstripe above on all femora, small black spot below on anterior tibiaeand one above on posterior tibiae, and a varying degree of black oncoxae and trochanters ; yellow. The fasciae on the tergites show twocolors, the posterior portion of each fascia being much lighter (morenearly white) than the anterior portion. The first tergite, in addi-tion to the broad dorsal fascia found on its curved surface, bearsa conspicuous fascia across its anterior vertical surface. The U-shaped discal mark on the scutum shows a tinge of rufous.The flagellum above, except the terminal segment, is black; thissegment and the lower surface of the flagellum are ferruginous.The clypeus and the lower part of the anterior orbits are coveredwith a silvery pubescence. Elsewhere the pubescence is short andwhite and presents the normal appearance. The frons between theantennae and the base of the clypeus at midline are only slightlycarinate. The frons is broad and the inner eye-margins are slightlywider apart at the vertex than at the clypeus. One anterior meta-tarsus bears seven and the other eight spines, of which the two at theapex of each differ greatly from one another in length. The diskof the second sternite is shining and bears only coarse punctures.The apex of the sixtlj tergite is broadly rounded and on the midlineis devoid of punctures. The sixth sternite is noncarinate and iscovered with coarse setigerous punctures that become smaller nearthe basal lateral margin. The first intercubitus vein is almoststraight and the second abscissa of the cubitella is lacking.Length 13 mm. Described from a single specimen bearing thelabel, " Pusa, Coll. Bingham." It also bears the laber, " Bembexorientalis Hdl.," but by whom the determination was made is notshown.Type.?In the Zoologisches Museum der Universitat, Berlin.BEMBIX BORNEANA CameronBenribex horneana Cameron, Proc. Zool. Soc. Lond., vol. 2, 1901, p. 26.In the collection of the United States National Museum, bearingthe label, " Tambak," is a single female that has been identified asBemhix bornean^ Cameron, but by whom the identification was madeis unknown. Cameron based his description of this species on themale alone, the female at that time apparently being unknown tohim. It is possible that this specimen was determined by Cameronhimself some time after his description of the species and sent toAshmead in an exchange, but of this we have no proof. If a de-scription of the female of this species has been published, I have notseen it.
ABT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 147This female is smaller than the male Cameron described, being lessthan 20 mm. in length. The anterior metatarsus is broader andflatter than usual in this genus, thus agreeing with the male fromwhich the species was described. In this respect it resembles Bembixpalmata Smith, but the dilation of the anterior metatarsus is lesspronounced on this specimen than on palmate. The clypeus bears apair of large, basal, black spots; the scutellum and metanotum eachbears a narrow, interrupted fascia, and the scutum bears a brokenU-shaped discal mark. The propodeum bears a prominent curvedfascia, and the sides of the thorax and propodeum are yellow, excepta black spot below the tegula on the mesopleura, another in frontand above the middle coxa, and a vertical black stripe on the pro-podeum. The fasciae on tergites 1-5 are narrow, the first inter-rupted, the second inclosing a pair of black discal spots, and thethird, fourth, and fifth biemarginate on anterior border. The yellowon the sternites is limited to small lateral spots on 2 and 3. Theanterior metatarsus is provided with only five spines.BEMBIX PALMATA SmithBemT)ex palmata Smith, Cat. Hym. Ins. Brit. Mus., vol. 4, 1856, p. 325.Bemhex tridentifera Smith, Ann. Mag. Nat. Hist., ser. 4, vol. 12, 1873, p. 298.Bambex palmata Handlirsch, Sitz. Akad. Wissensch. Wien. Math.-Nat. CI.vol. 102, 1893, p. 751.?Dalla Tobre, Cat. Hym., vol. 8, 1897, p. 511.?Turner, Ann. Mag. Nat. Hist., ser. 8, vol. 16, 1915, p. 438.I have at hand a single female that I have referred to this species.On the lateral border of the clypeus running to the ventral marginis a short but deep depression, causing the clypeus at this point,when viewed from in front, to appear to overhang the base of themandibles. With regard to the maculations, this specimen agreeswith Handlirsch's description of the species. It is from Australiaand bears the label, " N. Queensland, Coll. Bingham."BEMBIX SPIRITALIS, new speciesType (female).?Black: labrum, mandibles, except tips; clypeus,except large medial black spot ; scape below ; frons between antennae;broad but shortened anterior orbits; three spots on frons below thelevel of anterior ocellus; pair of spots on vertex not connected withorbits; broad posterior orbits, above extending inward and down-ward on the occiput ; prothorax almost wholly ; broad lateral lines andU-shaped discal mark on scutum; broad fascia on posterior borderof scutellum; fascia on metanotum; broad, curved fascia on pro-podeum; mesopleura, metapleura, and side of propodeum almostwholly; broad, continuous fasciae on tergites 1-5, occupying theanterior part of the tergites and leaving an evident posterior black
148 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75border; fasciae on tergites 1-3 each inclosing a pair of black discalspots, and those on 4-5 deeply emarginate on anterior border; smalllateral spots on sternites 2-4; femora largely; tibiae, except spotabove on first pair and spot below on hind pair; and tarsi; crearmfyellow.The fasciae on the tergites are lighter in shade than the macula-tions on the body, some of which take on an orange shade of yellow.The mandibles are long and slender and are iinidentate. The pro-boscis (maxillae) is longer than is normal in this genus and whenat rest can not be completely concealed beneath the labrum. Theclypeus is unusually prominent and basally is distinctly carinate onthe median line. Apically the clypeus is somewhat flattenedmedially and its apical margin is strongly arcuate in form. Thefrons is verj'^ broad, forming more than one-third of the total widthof the head. The flagella are missing. The anterior metatarsus isprovided with six spines. The yellowish pubescence is long andunusually well developed on the head, thorax, and propodeum. Thesixth tergite is narrowed and roundly pointed at the apex.Length 15 mm. Described from a single female, the type, bearingthe label, " Espirito Santo, Brasil, H. Kolle, Berlin W."Type.?In the Zoologisches Museum der Universitat, Berlin.BEMBIX MELANCHOLICA SmithBembex melanoholica Smith, Cat. Hym. Ins. Brit. Mus., vol. 4, 1856, p. 328.
?
Handlirsch, Sitz. Akad. Wissensch. Wien. Math.-Nat. CI., vol. 102, 1893,p. 783.?Dalla Torre, Cat. Hym., vol. 8. 1897, p. 508.In the collection of the United States National Museum there is asingle female of this species received in exchange, but by whom iden-tified is not known. It bears the label, " W. Sumatra, Pedang,23.XII. 08, Schoede, S. G." In all respects, except that of the colorof the maculations, this specimen agrees quite closely with Smith'sdescription of the species. Instead of being "livid yellow," asSmith describes the maculations, they are on this specimen verypale, hardly to be regarded as yellow. The abdomen, however, showsthat blue-black iridescent ground color that Smith reports for thisspecies. In addition to Sumatra, Handlirsch lists the points ofdistribution: Borneo, Malacca, Singapore, Madras, Salvatti, andMorty Islands. BEMBIX BORREI HandlirschBembex borrei Handerlisch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CL, vol.102, 1893, p. 866.?Daixa Torre, Cat. Hym., vol. 8, 1897, p. 502.In the United States National Museum are two females that Ihave referred to in this species. They bear the label. " Culasi Panay^P. I., June, 1918, McGregor." A description follows
:
AET. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 149Black: labrum; mandibles except tips; clypeus in part; minutespot between antennae; pair of spots at their insertion; minute spotbelow anterior ocellus; spot on scape below; anterior orbits, almostobsolete; posterior orbits narrowed and shortened above; fascia onj^ronotum continued on tubercles and sides of prothorax; pair oflateral spots on side of prothorax; lateral lines and U-shaped discalmark interrupted at midline on scutum; fascia on posterior border ofscutellum; fascia on metanotum; curved fascia on propodeum ex-tended on posterior surface and narrowly interrupted ; lateral anglesand side (in part) of propodeum; vertical spot on metapleura; tri-angular spot on mesopleura ; continuous fasciae on tergites 1-5, firstwith pair of rounded dorsal and pair of pointed lateral anterioremarginations, second and third narrowed at midline and each en-closing pair of discal spots, fourth and fifth broadly biemarginateon anterior border; pair of lateral spots on sternites 2-5, those onsecond and third extended and attenuated medially; femora, exceptline on both anterior and posterior surface; tibiae, except line onanterior and posterior surface of first and second pairs and on pos-terior surface of third pair ; and tarsi ; yellow.The markings on the thorax and abdomen are bright lemon yellow
;
those on the legs are darker in shade ; the markings on the head arevery pale. The flagellum is black and the wings are hyaline. Thepubescence is light in color and normal in development. The sixthtergite is roundly pointed and is uniformly and rather coarselypunctate, except at the apex and on the midline of the posterior halfof the tergite, which are devoid of punctures. The frons is relativelybroader than usual and the inner eye-margins are parallel. Theblack basal border of the clypeus on one specimen is expanded at themidline so as to reach almost to the ventral border of the sclerite;on the other specimen the black is confined to a pair of irregularbasal siDots. BEMBIX LONGIPENNIS. new speciesType (female).?Black: labrum; clypeus, except a pair of narrowlines paralleling the basal margin; mandibles, except tips; frons tolevel of anterior ocellus, except pair of large black spots; scape,except small apical spot above; anterior orbits deflected inward atanterior ocellus and reaching almost to vertex; posterior orbitsbroad below; prothorax, except three anterior black dorsal spots;broad lateral lines and long, narrow discal lines on scutum; fasciaon posterior border of scutellum; fascia on posterior border ofmetanotum; curved fascia on dorsum of propodeum broadly ex-tended on posterior surface; lateral angles and sides of propodeumalmost wholly; metapleura; mesopleura almost completely; broad
150 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75fascia on first tergite narrowed and narrowly interrupted at mid-dorsal line; broad fasciae on tergites 2-5, all slightly sinuate onposterior dorsal border, that on 2 inclosing pair of large, ellipticalspots and acutely emarginate at median anterior border, that on 3biemarginate, and those on 4 and 5 bisinuate on anterior border;apex of sixth tergite; pair of small anterior spots on sternite 2;lateral spots connected by very narrow apical lines on sternites 1-5,each apical line apparently interrupted at mid-ventral line by a darkferruginous spot ; legs, except more or less of basal joints, line aboveon all femora, narrow line below on tibiae, and small spot or line atbase above on tibiae; yellow.The flagellum below is ferruginous; above it is quite dark butshades to ferruginous at the apex. The anterior metatarsus is pro-vided with six spines, of which the basal one is quite small. Thewings are hyaline and very long, reaching the end of the abdomen.The second abscissa of both radiella and cubitella is present. Thefrons between the antennae and the adjacent basal part of the clypeusare distinctly carinate. The sixth tergite is coarsely punctate andthe apical part is distinctly ferruginous. The sixth sternite is dis-tinctly carinate on the midline and, like the sixth tergite, its apex ismarked with ferruginous. The disk of the second sternite is smoothand shining and bears numerous, scattered, coarse punctures.The paratype (female) differs from the type in having the fascia onthe scutellum interrupted at midline ; in having the fascia on the firsttergite reduced to lateral spots; in having the inclosed spots on thefascia on the second tergite reduced to anterior emarginations ; andin having the fascia on tergite 5 narrowly interrupted at the mid-dorsal line. The ferruginous markings on the sixth abdominalsegment are present, but less well developed than on the type.Length 22 mm. Described from two females, each of which bearsthe label, " Nyassa-See, Langenburg, 9-19-VIII, 98, Fiitteborn S."Type.?In the Zoologisches Museum der Universitat, Berlin.BEMBIX LATIFASCIATA TamerBettibcx latifasciata TtmNEJR, Ann. Mag. Nat. Hist., ser. S, vol. 10, 1912, p. 57;Ann. Mag. Nat. Hist., ser. 8, vol. 16, 1915, p. 443.I have at hand a single female that I have referred to this species.The second sternite (third and fourth also) is entirely yellow; thesixth tergite bears lateral spots ; the fasciae on the tergites are broadand only the first is narrowly interrupted. These fasciae on thetergites have their anterior borders yellow and the posterior partwhite. The scutellum, metanotiim, and propodeum each bears aprominent fascia ; there is a prominent U-shaped discal mark on thescutum; and there is a pair of black spots on the clypeus. The
I ABT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 151
ij specimen bears the label, " S. Australien, Hermannsburg, Finke
I River, v. Leonhardi G." Turner reports the species also from West
j Australia, BEMBIX LAETA, new speciesFigure 115Type (female).?Black: labrum; mandibles, except tips; clypeus,
j except pair of black medial spots and pair of very narrow lines atbase; lower part of frons connected by vertical line with spot belowanterior ocellus; scape below; broad anterior orbits deflected inwardfrom the eye-margin at the vertex; posterior orbits; prothorax, ex-cept narrow line in front of tubercles ; broad lateral lines' and broadunbroken U-shaped discal mark on scutum ; broad fascia on posteriorborder of scutellum ; fascia on metanotum ; curved fascia on dorsumof propodeum broadly extended on median posterior surface ; lateralangles and sides of propodeum; metapleura; greater part of meso-pleura ; broad fascia on tergite 1, abruptly narrowed and interruptedat dorsal midline; continuous fasciae on tergites 2-4, that on 2inclosing pair of narrow, elliptical, black spots those on three andfour biemarginate on anterior border and all three acutely emargi-nate at midline on posterior border ; fascia on fifth tergite narrowedand interrupted at dorsal midline; lateral spots on tergite 6; lateralspots connected by apical lines on sternites 2-5; coxae and tro-chanters more or less; femora except spot below and narrow lineabove; tibiae; and tarsi; yellow. The legs of the U-shaped discalmark on the scutum are decidedly rufous in color.The flagellum is slender, black above, except the terminal seg-ment, which is fuscous, and yellowish below, shading to fuscousat the apex. The frons is broad and the inner eye-margins areapproximately parallel. The wings are hyaline and the secondabscissa of both the radiella and the cubitella is present. The an-terior metatarsus is provided with six spines. The pubescence islight in color, short, and relatively dense on head, thorax, propodeumand base of abdomen. The disk of the second sternite is smooth andshining and bears scattered, coarse punctures. The sixth tergiteis narrow and roundly pointed at the apex.Length 15 mm. Described from a single femaje bearing the label,
" D. O. Afrika, 18, 12, 10, Makonde-Hochld, Grote S. G."Type.?In the Zoologisches Museum der Universitat, Berlin.BEMBIX BELLATRIX, new speciesFigure 96Type (female).?Black: labrum; mandibles, except tips; scapebelow ; spot between antennae ; broad anterior orbits, shortened above,
152 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75deflected away from the eye-margins and narrowed ; posterior orbitsbroad below; narrow posterior border of pronotum; sides of pro-thorax, except irregular bjack spot in front of tubercles; shortlateral lines above base of wings and pair of narrow longitudinaldiscal lines on scutum ; narrow fascia on posterior border of scutellum
;
narrow fascia on posterior border of metanotum; curved fascia onpropodeum, broadened and interrupted at midline on posterior sur-face ; lateral angle continuous with Jarge spot on side of propodeumlarge spot on metapleura; smaller spot on mesopleura; broad, con-tinuous fasciae on tergites 1-5; fascia on first tergite with a mediananterior emargination extended to right and left, thus producing alarge, flattened, heart-shaped area in the fascia; second fasciaewith a wider but shallower median anterior emargination partlyinclosed; third and fourth fasciae each ajso with a shallow mediananterior emargination; large apical heart-shaped spot on sixth ter-gite ; lateral spots connected by narrow apical lines on sternites 2-5
;
spot on anterior coxa; femora in part; tibiae, except line above andone below on anterior pair and line below on middle pair; andtarsi ; pale tinged toith light creamy yellow.The flagellum is black, paler below. The frons is broad and theinner eye-margins are parallel. The dorsal border of the clypeus atthe midline is extended upward between the antenna, forming anangle whose apex is above a line marking the lower level of the inser-tion of the antennae on the frons (fig. 96). Although this modi-fication in the form of the dorsal border of the clypeus is not uniquewith this species, it is more pronounced than on any species I have sofar seen. The frons between the antennae and the dorsal part of theclypeus are distinctly carinate. The anterior matatarsus bears sixspines. The wings are hyaline. The sixth tergite is triangular inoutline, rather narrow, and roundly pointed at the apex. The secondsternite is uniformly, closely, and finely punctate throughout itsentire surface, with here and there a few somewhat larger puncturesscattered over it.With the type I have associated as a paratype a single female thatmay prove to be a female of another species. It is more slender thanthe type ; this is particularly evident with regard to the thorax. Thecolor of the maculations on the abdomen is distinctly greenish yellow.In other respects, including the form of the clypeus and the punc-tation of the second sternite, it agrees so closely with the type thatunder the circumstances I am forced to regard it as a variant of thisspecies.Length about 17 mm. Described from two females, of which thetype bears the label, " Brasilien, St. Cath. Joinville, Schmalz S. V.,"and the paratype, the labels, " Brasilien, Freir. S." and " 3738 Bras."Type.?In the Zoologigches Museum der Universitat, Berlin.
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 153BEMBIX GENEROSA. new speciesFigures 107, 108Type (female).?Black: clypeus; labrum; mandibles, except tips;frons below level of anterior ocellus, except pair of black spots;scape, except small spot above; broad anterior orbits; broad pos-terior orbits united above: prothorax entirely; broad lateral lines andbroad U-shaped discal mark on scutum; broad posterior fascia onscutellum; metanotum; broad, curved fascia on propodeum; pos-terior surface, lateral angles and sides of propodeum; sides andventer of mesotharax and metathorax entirely; continuous fasciaeon tergites 1-6, the first with deep, round, median, anterior emargi-nation, almost inclosed, and pair of shallow, posterior, dorsal emargi-nations, second inclosing pair of elliptical, dorsal, black spots, third,fourth, and fifth biemarginate on anterior border, sixth with anterior,lateral emarginations ; second sternite, except large median and smalltransverse posterior spot; lateral spots on sternites 3-5 connected bybroad, apical bands; legs, except small black spot above on posteriorfemora; yellow.The flagellum, which changes to fuscous at the apex, is black aboveand yellowish below. The wings are hyaline and the second abscissaof the cubitella is lacking. The anterior metatarsus bears eightspines. The disk of the second sternite is densely covered withminute punctures and is also covered with a very fine, short pubes-cence. The pubescence elsewhere on the body is unusually short andsparse, in fact, almost lacking. The sixth tergite bears a smallpygidal area, which is set off by lateral ridges and whose surface iscoarsely punctate and shows an evident median carina. The sixthsternite is densely and finely punctate with coarse punctures scatteredover its surface, and is accordingly provided with, fine, dense pub-escence, in which are scattered many relatively longer, coarser hairs.This species stands close to B. chlorotica Handlirsch, from whichit differs in its slightly smaller size and in the character of itsmaculations.Length 16 mm. Described from a single specimen bearing thelabel, " S. Somala Karo Lola 6. 5. 01, B. v. Erlanger."Type.?In the Zoologisches Museum der Universitat, Berlin.BEMBIX PIRAPORAE, new speciesType (female).?Black: labrum; mandibles, except tips; clypeus;lower part of frons produced upward in a stripe on the midline tojoin a large spot below anterior ocellus ; a smaller spot on either sidethis large central spot; broad anterior orbits reaching vertex, wherethey are deflected inward away from eye-margins; scape below;
154 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75posterior orbits; prothorax, except black area above and dusky spotin front of tubercles; conspicuous lateral lines and broken U-shapeddiscal mark on scutum; fascia on scutellum, narrowed toward themidline and rather widely interrupted ; fascia on metanotum ; curvedfascia on propodeum, interrupted at midline on posterior surface;lateral angles and almost the entire sides of propodeum ; metapleuraand mesopleura entirely, except narrow black lines along the sutures
;
fasciae on tergites 1-5, all interrupted at mid-dorsal line, except thesecond ; fascia on second tergite biemarginate on anterior border, theemarginations almost enclosed; fasciae on tergites 3-5 also more orless conspicuousl}' biemarginate on anterior dorsal border; pair ofbasal lateral spots on sixth tergite ; sternites 1-5, except small medianand pair of small, anterior lateral spots on second, and pair of ante-rior emarginations on fifth ; legs, except more or less black at articula-tions of coxae and trochanters, black on femora above, and black onbasal part of tibiae above ; yeUoto.The flagellum is black with a narrow, yellowish line below, 'becom-ing testaceous toward the apex. The longitudinal lines of thebroken U-shaped discal mark on the scutum are tinged with reddish.The wings are hyaline. The pubescence is relatively well developed,white, and longer and more conspicuous on*the head than elsewhere.The frons is wide, forming almost half of the width of the frontaspect of the head. The inner eye-margins are parallel. The an-terior metatarsus bears six spines. On the sixth tergite there areevident, though weakly developed, lateral ridges and the punctureson the apical half of the tergite are coarse.The paratype differs from the type only in having an anterior,median, black area on sternites 3 and 4 and in having the lateralridges on the sixth tergite almost obsolete.Length 13 mm. Described from two females (type and paratype)bearing the label, " Pirapora, Minas Gereas, Brazil, November 11-13,1919, Cornell U. Exp."Type.?In the collection of Cornell University.BEMBIX INCOGNITA, new speciesType (female).?Black: labrum; mandibles, except tips; clypeus;lower part of frons; scape, except spot above; broad anterior orbitsjoined by a transverse band below the anterior ocellus, and abovethis point deflected away from the eyes and continued to the vertex;broad posterior orbits continued at the vertex beyond the borderof the eyes but not meeting; prothorax; broad lateral lines andprominent U-shaped discal mark on scutum; broad fascia onposterior border of scutellum; metanotum; broad fascia on pro-podeum; posterior surface, lateral angles, and sides of propodeum
ART. 5 GENERIC BEVISION OF THE FOSSORIAL WASPS PARKER 155almost completely; metapleura; mesopleura; mesosternum, exceptspot in front of middle coxa ; broad fasciae occupying the middle oftergites 1-5, the first bearing a i^rominent median anterior emargina-tion, the second and third each enclosing a pair of black discal spots,the fourth biemarginate on anterior border, the fifth narrowed andinterrupted at mid-dorsaj line; sixth tergite with broad V-shapedapical maculation; sternite two with pair of anterior lateral spotsand pair of posterior lateral spots joined by a narrow apical line;sternites 3-5 with posterior lateral spots joined by apical lines; legs,except more or less black on coxae and trochanters, a black stripeabove on all femora, and some black below on anterior tibiae;yellow.The flagellum is ferruginous, somewhat darker above than below,especially in the case of the first two segments. The clypeus is notmore prominent than normal and is only slightly carinate on midlineat the base. The ej^es are but slightly divergent at the clypeus. Theanterior metatarsus is provided with six spines. The wings arehyaline and the left front wing bears a small triangular accessorycell between the first and second cubital cells. The pubescence is veryshort and sparse. The legs of the U-shaped discal mark on thescutum are distinctly reddish in color.Length 20 mm. Described from a single female (type) bearingonly the label, " Coll. Bingham." It bears no locality label whatever.In general appearance it resembles melancholica Smith and taiwanaBischoff, but the maculations are more extensively developed and arealso brighter in color than on those two species.Type.?In the Zoologisches Museum der Universitat, Berlin.Genus MICROBEMBEX PattonFigures 9, 10Microiemhex Patton, Bull. U. S. Geol. Surv., vol. 5, 1879, p. 364.?Fox. ProcAcad. Nat. Sci. Phila., 1895, p. 363.?Kohl, Ann. des K. K. Naturhist.Hofmus., vol. 11, 1896, p. 434.?Parkeb, Proc. U. S. Nat. Mus., vol. 52, 1917,p. 117.B. Bembeces aberantes Handlibsch, Sitz. Akad. Wlssensch. Wien, Math.-Nat.CI., vol. 102, 1893, p. 878.Bembex Fox (part), Proc. Acad. Nat. Sci. Phila., 1894, p. 303.
?
Dalla Tobbe(part), Cat. Hyiu., vol. 8, 1897, p. 501.Genotype.?Berribex monodonta Say by original designation.Members of this genus differ from those of the genus Bemhix andother allied genera in that the distal end of the radial cell does notlie on the anterior margin of the wing (fig. 10).Head wide as thorax ; middle of vertex slightly depressed below thelevel of the top of the eyes; frons unusually wide, making up half,
156 PEOCEEDINGS OF THE NATIONAL MUSEUM vol.75and in some species more than half, of the total width of the frontaspect of the head ; anterior ocellus reduced to a linear, transverse,arcuate cicatrice; clypeus prominent, bulging, in some species, whenviewed from the side, resembling a blunt nose; mandibles edentate;maxillary palpus composed of three segments, labial of one; firstintercubitus straight ; metacarpus at its apical end not confluent withthe anterior margin of the wing; posterior-lateral angles of propo-deum rounded, its posterior, dorsal, median border somewhat promi-nent and overhanging somewhat the slightly excavated posteriorsurface of the segment ; second sternite of male usually provided witha more or less well developed median process; eighth sternite endingin a single spine ; spatha of male genitalia as in Figure 57.KEY TO SPECIES OP MICEOBBMBEX
1. Males (visible segments in abdomen 7; segmrents in antenna 13) 2.Females (visible segments in abdomen 6; segments in antenna 12) 7.2. Seventh tergite bearing distinct lateral spines bidens.Seventh tergite without lateral spines 3.3. Hind femur near middle point distinctly widened, forming rounded obtuseangle on posterior border (fig. 49) sulphurea.Hind femur not thus developed 4.4. Seventh tergite with evident rounded lateral angles, best seen in ventralview (fig. 54) tricosa.Seventh tergite not so developed 5.5. Process on second sternite long and curved (fig. 64) ; clypeus, large spot onmesopleura, and large discal spots on scutum, yellow aurata.Process on second sternite otherwise; above combination of maculations notpresent , 6.6. Process on second sternite blunt and hirsute (fig. 66) hirsuta.Process on second sternite otherwise monodonta.7. Sixth tergite at base with distinct lateral spinelike angles natalis.Sixth tergite without basal lateral angles 8.8. Anterior metatarsus with eight spines bidens.Anterior metatarsus not with eight spines 9.9. Posterior apical angle of anterior metatarsus not extended in form of promi-nent lobe; apical emargination of clypeus ellipsoid in form (fig. 61).nasuta.Posterior apical angle of anterior metatarsus extended in form of prominentlobe; apical emargination of cl5T)eus arcuate in form (fig. 9) 10.10. Anterior metatarsus with seven spines ; second abscissa of cubital vein equalin length to second abscissa of radial ; length 15 mm equalis.Anterior metatarsus not with seven spines ; second abscissa of the cubitalvein not equal in length to second abscissa of radial 11.11. Fasciae on tergites bicolored, yellow dorsally, pale or creamy colored later-ally (Jamaica) tricosa.Fasciae on tergites uniform in color, yellow or pale 12.12. Pubescence on head, thorax, and propodeum unusually long and dense, veryconspicuous on dorsum and lateral angles of propodeum hirsuta.Pubescence not unusually long and dense 13.
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 157
13. Clypeus unusually prominent, the depth of its apical emargination is to thegreatest width of the emargination as three is to four sulphurea.Clypeus less prominent, depth of the apical emargination as compared withthe width of the emargination not as above 14.14. Clypeus, scape, mesopleura, and large discal spots on scutum, yellow aurata.Combination of maculation as given above not present monodonta.MICROBEMBEX BIDENS, new sipeciesFigures 56-59This species diflfers from all other species of the genus so fardescribed, in that the anterior metatarsus on both males and femalesis provided with eight spines. The clypeus is very prominent andthe depth of its apical emargination is to the width of the emargina-tion approximately as four is to five. The maxillary palpus iscomposed of four segments, the labial of two. The seventh tergiteof the male bears a pair of lateral apical spines and the median ter-minal portion is broad and emarginate at the apex (fig. 59). Themale genitalia are distinct, as shown in Figure 57, and the spine on theeighth sternite bears on its ventral surface a short spine (fig. 56).The second sternite of the male near its posterior border bears atransverse, swollen area, which bears at its posterior midventralpoint a short, pointed tubercle. The apex of the sixth tergite of thefemale is deeply emarginate, causing the tergite to end in a pair ofshort spines (fig. 58). The pubescence on the head, thorax, andpropodeum is short, relatively sparse and somewhat silvery, espe-cially on the frons. The wings are hyaline.Ti/pe (male).?Black: labrum; mandibles, except tips; clypeus,except black border at base ; scape, except small spot above ; anteriororbits shortened and narrowed above; spot below anterior ocellus;posterior orbits; posterior border of pronotum and of sides ofprothorax, including tubercles; lateral lines broad anteriorly andpair of discal lines on scutum ; fascia on scutellum greatly narrowedat midline; fascia on metanotum; broad, curved fascia on pro-podeum; lateral angles continuous with sides of propodeum; largespot on mesopleura; broad, continuous fasciae on the tergites(rendering the dorsum of the abdomen, when straightened, almostentirely yellow) ; second sternite almost wholly; continuous fasciaeon sternites 3-7, narrow on the more posterior sternites; legs, ex-cept some black on coxae, trochanters, and femora above; yelloio.The allotype (female) differs in color but little from the type.There is no black on the clypeus; the posterior orbits are extendedon the vertex; the fasciae on the tergites and sternites are not quiteso well developed ; and the black on the femora is a little moreextensive.
158 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75On the type and on some of the paratypes the fascia on the firsttergite incloses a pair of small, approximated, black, discal spots.On some specimens these spots are joined, forming a single medianspot. Variation in the character and extent of the maculations isusually great in species of this genus, but in the case of this species,as represented by the 14 specimens at hand, variation in the macu-lation is very slight. All males have a black border at the base ofthe clypeus; this black border is lacking on all females. On thefemales the discal marks on the scutum are broad and on some thesemarks assume a broken U-shaped form.Length 14 mm. Described from seven males and seven females(including the type and allotype), of which 13 bear the label, "LaRioja, W. Argentina, B. P. Clark, donor." The remaining speci-men, a female, bears the label, " Pie de Palo, San Juan, Argentina,11 March, 1920, Cornell U. Expedition."Tyye and cdloMjpe.?Q^it. No. 40851, U.S.N.M.MICROBEMBEX SULPHUREA (Spincla)Figures 49, 50Bemibex sulphtirea Spinola, Gay's Hist. Fis. y Polit. de Chile, vol. 6, 1853,p. 319.Bemhex sulfurea Handlirsch, Stiz. Akad. Wissensch. Wien, Math. Nat. CI.,vol. 102, 1893, p. 885.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 514.The males of this species have the hind femora dilated at themiddle point (fig. 49), a character that, so far as I am aware, isnot possessed by any other species of the genus. Furthermore, thespine of the eighth sternite has a distinct hook at the tip, as is shownin Figure 50. Apparently Handlirsch overlooked this in his de-scription of the species. The females (and males also) have theclypeus strongly prominent so that its junction with the frons atthe midline forms an angle more nearly approaching a right anglethan on any other species except nasuta. The apical emarginationof the clypeus for the junction with the labrum is greater than asemicircle, so that the depth of the emargination compared withits extreme width is approximately as 3 is to 4. The size of theindividuals, the color of the maculations, and the extent of theirdevelopment all vary greatly.Among the specimens of this species before me are two males, iden-tified by Handlirsch and bearing the label, " Oberer Magdalenen,Strom " ; a male identified by Kolil and bearing the label, " Chile,Concepcion, 1903, Herbst " ; a female identified by Handlirsch andbearing the label, " Brasilien " ; and a female identified by Reed andbearing the label, " Chile, E. C. Reed." In addition to these I have
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 159
referred to this species a male from southern Chile, collected byM. J. Rivera, and females collected at Rio Janeiro, Bogata, Cayenne,and La Paz, Bolivia.MICROBEMBEX TRICOSA, new speciesFigures 53-55This species is based upon specimens from Jamaica. The male isdistinguished by the evident rounded lateral angles of the seventhtergite, which give to the apex of the tergite a distinct triangularoutline (fig. 54). The spine of the eighth sternite is flattened,straight, and truncate at the apex. On the female the fasciae on thetergites are of two colors: the dorsal median portion is yellow orgreenish yellow, while the lateral parts are creamy yellow or pale.The pubescence on the frons of the female is silvery on the lower partand on the areas bordering the eyes, but that on the upper centralpart shows a decided golden tinge. The pubescence on the frons ofthe male is distinctly golden.Type (male).?Black: labrum; clypeus; mandibles except tips;scape below ; vestiges of posterior orbits ; central spot on dorsum ofprothorax united with a line on posterior border of pronotum that iscontinuous on tubercles and sides of prothorax; lateral lines and pairof large discal spots on scutum; large lateral spots showing a ten-dency to elongate along the anterior border of scutellum ; metanotum
;
broad, curved fascia on propodeum narrowed at midline; large tri-angular spot on mesopleura; broad fasciae occupying almost the en-tire surface of tergites 1-6; fascia on second tergite inclosing pairof small, widely separated discal spots; fasciae on tergites 3-6 withwidely separated, more or less evident biemarginations and mediannotch on anterior border; pair of lateral apical spots on tergite 7;broad fascia on sternite 2 ; broad fascia on sternite 3 deeply biemar-ginate on anterior border; lateral spots on sternites 4-6 connectedby posterior apical lines ; coxae and trochanters more or less ; femora,except more or less of the basal half of all ; tibiae, except spot belowon all ; and tarsi ; yellow.The maculations on the allotype (female) do not differ essentiallyfrom those on the type, excejDt on the abdomen. The fasciae on thetergites of the allotype are bicolored, as has been noted above, and aremuch narrower than those on the type. While they are somewhat sin-uate on the anterior border, they are not emarginate and all are with-out discal spots. The fifth is interrupted. The sixth tergite bears*apical lateral spots. There are lateral spots on sternites 2-5, of whichthose on 2-4 are connected by narrow, apical lines. The black on thelegs is somewhat more extensive than on the type. The sixth tergiteends in two short spines (fig. 53).
160 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75The wings of this species are somewhat infumated, the infumationbeing more evident on the middle of the wing than elsewhere, moreevident on the female than on the male, and more conspicuous onsome individuals than on others. The anterior metatarsus is pro-vided with six spines. The variation in the maculations, as shownby the specimens before me, is not great. On two of the male para-types the fascia on the first tergite also incloses a pair of discal spots,and on a female paratype the fasciae on both fourth and fifth ter-gites are interrupted. On all other female paratypes all fasciae onthe tergites are continuous.Cresson described two speciCvS in this genus from specimens ob-tained from Cuba, a/rgentifrons and armata. I have seen the speci-mens on which these two species are based and I am of the opinionthat argentifrons is only a form of iiionodonta Say. The male thatCresson referred to his armata represents, in my judgment, a distinctspecies, but whether this male and the female with which he asso-ciated it are sexes of the same species is open to question. Thefemale (which Cresson made the type of armata) does not have thegolden pubescence on the frons that is so conspicuous on the male ofOfpuxata^ but it does have the mixed silvery and golden pubescencesuch as is found on the frons of the species I have just described.Furthermore, I have before me a single female from Cuba that doeshave the golden pubescence on the frons in all respects similar to thatof the male of Cresson's armata. If further investigation shall showthat the female of armata Cresson and the female of the species abovedescribed belong to the same species, laj species will fall as a synonymimder armata Cresson and a new species will have to be described,based upon the male of Cresson's armata. In this connection I wishto state that there is one thing of which I am certain : that is thatthe male of tricosa is distinct from the malesj that Cresson referredto avTriata and argentifrons.Length 12 mm. Described from five males and six females, in-cluding the type and allotype, all from Jamaica.Type.?Cat. No. 40852, U.S.N.M.MICROBEMBEX AURATA ParkerFigure 64Microhenibew aurata PARKia;, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 121.This species differs from nionodonta in its slightly larger size, inits more extensive and richer yellow maculations, and particularlyin the character of the genital stipites of the male. Only three speci-mens are found in the United States National Museum : the type.
IART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 161bearing the label, " California " ; the allotype, bearing the label " LosAngeles Co., California " ; and a. male bearing the label, " Bill Wms.Fork, Ariz., Aug., F. H. Snow."MICROBEMBEX HIRSUTA ParkerFigure 66iMicrobemhex hirsuta Parkb3i, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 122.The male of this species may be distinguished from the male of\inanodonfa by the form and the hirsute character of the process onthe second sternite. It is further distinguished from vionodonta bythe form of the genital stipites. The females are distinguished fromthe female of iiwnodonta by the unusual development of the pubes-cence on the liead, thorax, and propodeum, especially on the dorsumof the propodeum. On many of the females that I have referred tothis species the black on the abdomen has been replaced by brown ofvarying shades. These brown forms are believed to be specimensthat were captured just after emergence from the pupal condition.SPECIMENS EXAMINEDArizona: Yuma (August, 1905,- Hbt. Brown).California: Bard (July 22, H. R. Reed).Texas: Rio Grande, near Boquillas, Brewster County (June, 1908, Mitchell andCushnian). MICROBEMBEX MONODONTA (Say)Figures 9, 10, 65Bembex monodonta Say, Nar. Exp. St. Peters River, Append., 1824, p. 335.
?
Handlirsch, Sitz. Akad. Wisseusch. Wien, Math.-Nat. CI., vol. 102, 1893,p. 882.Microhembex monodonta Patton, Bull. U. S. Geol. Surv., vol. 5, 1879, p. 362.Pabkee, Proc. U. S. Nat. Mus., vol. 52, 1917, pp. 119, 134.Microbemiex tarsalis Rohwer, Proc. U. S. Nat. Mus., vol. 47, 1914, p. 516.This seems to be the most widely distributed species among theBembicids of the western continent. It has been reported from prac-ticallyr every State in North and South America. Among the hun-dreds of specimens I have examined, representing localities widelydistributed over both North and South America, I find great varia-tion in the color of the maculations, in the extent to which thesemaculations are developed, and tlieir distribution on the body. Sofar, I have been unable to jfind any structural variations to correspondto these color variations, and, in fact, no consistency in the colorvariations themselves. I am, therefore, obliged to consider this large22764?29 11
162 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75group as a single species, since I am unable to discover trustworthycharacters, based either on structure or color, that will enable me toseparate it into two or more species or even into well-defined varieties.MICROBEMBEX NATALIS. new speciesFigures 51, 52Type (female).?Black: clypeus; labrum; mandibles, except tips;area on frons between antennae extended upward and narrowed toa point connecting it with a spot below anterior ocellus ; scape below
;
broad anterior orbits deflected inward above anterior ocellus; pos-terior orbits verybroad below, narrowed above and extended acrossthe vertex a short distance, but not united ; prothorax, except trans-verse spot above and vertical spot on side; lateral lines, and a U-shaped spot whose anterior ends are much dilated, on scutum;fascia, enlarged somewhat laterally, on posterior border of scutellumfascia on metanotum; broad fascia on propodeum and its lateralangles broadly; metapleura; mesopleura almost wholly; very broadfascia on first tergite enclosing a pair of kidney-shaped discal markswhose concave sides face laterally and whose anterior ends are furtherseparated than their posterior ends; broad, continuous fasciae ontergites 2?5, whose margins are slightly sinuate; apex of sixth ter-gite broadly; broad lateral spots joined by a narrow apical fasciaon sternites 2 and 3; lateral spots on sternites 4 and 5 prolongedtoward the midline but not connected ; coxae and trochanters in partfemora, except line above on all; tibiae, except line below on firstand second pairs and line above on third pair ; and tarsi ; yellom.The flagella are broken, only a portion of the base of one remains.This i^ black above and rusty brown below. The wings are hyaline.The clypeus is remarkably flat for a member of this genus, showingscarcely any of the prominence so evident in monodonta. The pu-bescence is white and remarkably short and sparse. The sixth ter-gite bears basally well-defined lateral angles, which, owing to thecurvature of the tergite, point almost directly downward. This ter-gite ends in a pair of well-defined points.It is just possible that the specimen on which this species is basedmay belong to Smith's gratiosa, but if Smith's description of hisspecies is complete and accurate, it does not belong there. Further-more, Handlirsch, who gives a figure of his species, unoguayensis^ saysthat the abdomen of the female of gratiosa is quite similar to that ofuruguayensis. If his conclusions are correct, this female represents agood species, for the sixth tergite is quite different from that ofv/mgumjensis as represented in the figure given by Handlirsch.
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 163Length 13 mm. Described from a single female bearing the label,
"Natal, Brazil, W. M. Mann."Type.?C2ii. No. 40853, U.S.N.M.MICROBEMBEX NASUTA. new speciesFigures 60, 61This species is described from two females and is distinguishedfrom all other species in the genus by the peculiar form of theclypeus, as shown in Figures 60 and 61. It is unusually prominentand bulging, the depth of its apical emargination for articulationwith the labrum being approximately equal to the greatest width ofthis emargination. The species is further distinguished by thefact that the posterior apical angle of the anterior metatarsus isnot produced into a promient lobe, a development found on all otherspecies of the genus.Type (female).?Black: mandibles, except tips; clypeus; labrum;scape ; frons between antennae ; spot on frons below anterior ocellus
;
very broad anterior orbits, not reaching the vertex and dilated in-ward at their dorsal extremity; very broad posterior orbits, almostunited across the vertex ; prothorax ; broad, lateral lines and pair ofbroad, discal lines on scutum ; scutellum, except median longitudinalblack stripe; metanotum; very broad, curved fascia on propodeum;lateral angle, posterior surface, and sides of propodeum ; metapleuramesopleura and mesosternum; all tergites; sternites entirely, exceptnarrow, black anterior border on fifth and sixth : legs entirely ; pale^almost clay-colored yellow. On the anterior sternites the color isa more decided yellow.The flagellum is dark above, almost black on some segments ; belowit is a light shade of ferruginous. The wings are hyaline and long,reaching the end of the abdomen. The pubescence is white, andalthough dense, is exceedingly short. The apex of the sixth tergiteis slightly and roundly emarginate.The paratype differs from the type in being a trifle larger andin having the yellow on the tergites somewhat less extensive. Thefascia on the first tergite bears a median anterior emargination;that on the second has a pair of shallow, rectangular anterior emar-ginations; and tergites 3, 4, and 5 each shows an irregular, shallowblack border on anterior margin, variable in outline. Tergite 6shows an anterior black border. The basal joints of the legs alsoshow dark markings, not being wholly yellow as on the type.Length 15-17 mm. The type bears the label, " Pie de Palo, SanJuan, 11 March, 1920, Argentine, Cornell U. Expedition." Theparatype bears the label, " Argentina, Mendoza, 22. 12. 1906, JensenHaarup V."
164 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75Type.?In the collection of Cornell University; paratype in theZoologisches Museum der Universitat, Berlin.MICROBEMBEX EQUALIS. new speciesFigures 62, 63Type (female).?Black: labrum; mandibles, except tips; ciypeus,except black basal band, emarginate at apical middle; scape below;trace of anterior orbits opposite sides of ciypeus; posterior orbits;narrow posterior border of pronotum ; tubercles ; small spot on sideof prothorax; short lateral lines above base of wings on scutum;small lateral spots on scutellum; fascia on metanotum; curvedfascia on dorsum and posterior surface of propodeum; spot on ven-tral border of mesopleura ; broad, continuous fascia on tergites 1-6,the anterior borders being slightly irregular and acutely emarginateat dorsal midline ; continuous apical fasciae on sternites 2-6, some-what enlarged at lateral extremities and also at midventral line ; spoton coxae variable in extent; distal part of femora varying in extenton the different pairs; tibiae, except spot below on anterior andmiddle pairs; and tarsi; light greenish yellow or pale ci^eaviy white.The fasciae on the tergites, except their extreme anterior borders,are almost white, while the shade of yellow on the tibiae and tarsiis deeper than elsewhere on the body.The frons is very wide and the inner eye-margins are parallel.The flagella are black. The ciypeus is prominent, in this respectagreeing with monodonta. The pubescene is dense, white, and ofnormal length, being longest on head, sides of thorax and lateralangles of propodeum. When viewed at the proper angle thepubescence appears silvery, especially on frons and ciypeus. Theanterior metatarsus bears seven spines, of which the four on thedistal portion are large and black in color, while the three on theproximal part are much smaller in size and are light in color. Thesecond abscissa of the radius and the second abscissa of the cubitusare equal in length, whereas in other species the second abscissa ofthe radius is appreciably longer than the second abscissa of thecubitus. The sixth tergite ends in two distinct points (fig. 63).Length 15 mm. Described from a single female bearing thelabel, "Tingo, Peru, Aug. 17 (Cockerell)."Type (male).?Cat. No. 40854, U.S.N.M.Genus BICYRTES LepeletierFigures 15, 16, 40Bemhex Olivieb (part), Encycl. Metli., vol. 4, 1789, p. 288.Moncdula Dahlbom (part), Hym. Eur., vol. 1, 1845, p. 492.
AHT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 165Bloyrics Lepeletiehi, Hist. Nat., vol. 3, 1845, p. 53.
?
Parker, Proc. U. S. Nat.Mus.. vol. 52, 1917, p. 56.Genotype: Bicyrtes (servilii Lepeletier) ventralis Say. Monobasic.BemhiduJa BuBMEasTER, Bol. Acad. Cordova, vol. 1, 1874, p. 122.
?
Handlirsch,Sitz. Akad. Wissensch. Wien, Math.-Nat. CI., vol. 98, 1889, p. 473.?Kohl,Ann. des K. K. Naturhist. Hofmus., vol. 11, 1896, p. 442.?Daxla Torre,Cat. Hym., vol. 8, 1897, p. 494.Genotyi)e : Monedula discisa Taschenberg. Designated by Parker in 1917.Members of this genus are distinguished from those of othergenera of the tribe by the peculiar form of the propodeum, whoseposterior surface is distinctly concave and whose posterior-lateralangles (except in a single species) are extended, compressed, andwedgelike. The anterior ocellus is reduce to a transverse, linear,arcuate cicatrice and the eighth sternite of the male ends in threepoints.Head wide as thorax; vertex on a level with the top of the eyes,the middle part being slightly above this level ; anterior ocelluscompletely reduced to a linear, transverse, arcuate cicatrice; innereye-margins somewhat divergent at the vertex; mandibles dentate;clypeus broad and only moderately arched; labrum about as longas broad at the base, its apex rounded, not emarginate; maxillarypalpus composed of six segments, labial of four; posterior surfaceof propodeum concave, its posterior-lateral angles (except in asingle species) extended, compressed, and wedgelike; second cubitalcell strongly narrowed on the radial vein; pubescence always short,practicalh=^ wanting on the abdomen; second sternite of male mayor may not bear a process; eighth sternite of male ending in threespines; spatha of male genitalia as in Figure 40.KEY TO THE SPECIES OF BICYRTES
1. Males (abdomen with 7 visible segments; antenna with 13 segments) 2.Females (abdomen with 6 visible segments; antenna with 12 segments) 22.
. 2. Posterior coxa with tooth on inner distal margin fodiens.Posterior coxa without tooth 3.3. Middle femur with tooth at base below 4.Middle femur without tooth at ba.se below 5.4. Ultimate tergite black; fasciae on tergites narrow ventralis.Ultimate tergite maculated ; fasciae on tergites broader parata.5. Anterior tarsus greatly dilated ; segments broad and flat odontophora.Anterior tarsus normal ; segments not broad and flat 6.6. Fifth segment of the flagellum wider than any other segment; apical seg-ment of all tarsi wholly or in part black discisa.Fifth segment of flagellum not widened ; apical segment of tarsi other-wise 7.7. Second sternite with distinct median process or tubercle tricolorata.Second sternite without process or tubercle 8.8. Mesopleura more or less conspicuously maculated 9.Mesopleura black 13.
166 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75
*9. Anterior wing heavily clouded at first cubital cell viduata.Anterior wing without heavily clouded area 10.10. Fasciae on tergites attenuated medially; that on sixth reduced to widelyseparated spots quadrifasciata.Fasciae not attenuated medially ; that on sixth tergite not reduced towidely separated spots 11.11. Fascia on posterior border of scutellum continuous, or if interrupted, thelateral spots show a tendency to extend along the posterior border ; genitalstipes as in Figure 221 annulata.Fascia on anterior border of scutellum continuous, or if interrupted, thelateral spots show a tendency to extend along tlie anterior border ; genitalstipes otherwise 12.12. Discal marks on scutum narrow longitudinal lines ; sides of thorax profuselyyellow; genital stipes as in Figure 45 variegata.Discal marks on scutum oval spots; yellow on side limited to spot on meso-pleura ; stipes otherwise spinosa.13. Anterior wings heavily clouded at first cubital cell 14.Anterior wings without clouded area; infumation, if present, diffused 15.14. Dorsum of propodeum unmarked ; genital stipes as in Figure 48 gracilis.Dorsum of propodeum marked with yellow fascia more or less complete
;
genital stipes as in Figure 47 viduata.15. Flagellum black ; fascia on sixth tergite wanting or more widely interruptedthan preceding fasciae 16.Flagellum not wholly black ; fascia on sixth tergite always developed andscarcely more widely interrupted than the other fasciae 19.16. Sternites without maculations IS.Sternites 2-4 with lateral maculations 17.17. Discal spots on scutum ; fascia on metanotum ; fasciae on tergites, orangeyellow spinosa.Discal spots on scutum lacking ; metanotum without fascia ; fasciae on ter-gites creamy white quadrifasciata.18. Tergites 1-5 maculated ; wings slightly but uniformly infumated.quinquemaculata.Tergites 1^ maculated; wings hyaline pullata.19. Scape, first two joints of flagellum, and legs ferruginous; genital stipes asin Figure 46 insidiatrix.Scape and first two joints of flagellum not entirely ferruginous ; legs blackand yellow, or black and ferruginous; genital stripes otherwise 20.20. Metanotum without fascia ; fasciae on tergites narrow ; ultimate tergitenarrowed and bluntly pointed at the apex tristis.Fascia on metanotum ; fasciae on tergites relatively broad ; ultimate tergiteotherwise 21.21. Legs black and ferruginous ; maculations deep yellow, frequently with dasheaof ferruginous capnoptera.Legs black and yellow; markings pale creamy yellow with no trace of fer-ruginous mesillensis.22. Second sternite bearing pair of small processes ; sixth tergite as in Figure 41.bradleyi.Second sternite without process; sixth tergite otherwise 23.23. Posterior coxa with tooth on inner distal margin 24.Posterior coxa without tooth 25.
AET. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 167
24. Fasciae on tergites narrow; ultimate tergite black fodiens.Fasciae on tergites broad; ultimate tergite yellow burmeisteri.25. Ultimate tergite with pygidial area and lateral ridges, sometimes weaklydeveloped 26.Ultimate tergite without pygidial area and lateral ridges 28.26. Scutum without discal marks ; mesopleura black, rarely with inconspicuousmaculation; fasciae on tergites interrupted medially 27.Scutum with discal markings ; mesopleura with evident yellow maculation
;
fasciae on tergites usually continuous annulata.27. Fasciae on posterior tergites shortened or narrowed laterally ; sixth tergiteblack capnoptera.Fasciae on posterior tergites not shortened or narrowed laterally ; sixth tergite with pair of small maculations pexa.28. Lateral angles of propodeum acuminate ; all fasciae on tergites continuous.angulata.Lateral angles of propodeum normal form ; not all fasciae on tergitescontinuous 29.29. Mesopleura black 30.Mesopleura maculated with yellow more or less 32.30. Flagellum and legs for the most part ferruginous ; apex of ultimate tergiteferruginous ; fascia on first tergite broad and best developed insidiatrix.Flagellum black ; legs black and yellow or black and ferruginous ; ultimatetergite not ferruginous ; fascia on first tergite narrow, not better de-veloped than the others 31.31. Ultimate tergite maculated parata.Ultimate tergite black ventralis.32. Ultimate tergite wholly yellow sola.Ultimate tergite black 33.Ultimate tergite with lateral maculations 37.33. Anterior wing clouded at first cubital cell viduata.Anterior wing not clouded at first cubital cell 34.34. Fascia on fifth tergite much more widely interrupted than that on the first,or it may be lacking ; discal marks on scutum lacking or reduced to nar-row lines quadrifasciata.Fascia on fifth tergite always present and scarcely more widely inter-rupted than that on first ; discal marks on scutum prominent spots 35.35. Lateral spots on scutellum tending to extend themselves along the anteriorborder of the sclerite ; fasciae on tergites orange yollow spinosa.Lateral spots on scutellum tending to extend themselves along the jKtsteriorborder of the sclerite ; fasciae on tergites creamy yellow 36.36. Tibiae marked with black discisa.Tibiae wholly yellow mendica.37. Fasciae on all tergites interrupted 38.Fasciae, one or more, continuous parata.38. Scutum without discal markings mesillensis.Scutum with pair of discal lines or spots .39.39. Fascia on anterior border of scutellum usually narrowly interrupted at mid-line variegata.Fascia on scutellum reduced to lateral spots that tend to extend themselvesalong the posterior border of the scutellum discisa.
168 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75BICYRTES FODIENS (Haadlirscb)Figure 38Bemhidula foddens Handliksch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI.,vol. 98, 1889, p. 497.?Dalla Torbb, Cat. Hym., vol. 8, 1897, p. 495.Bicyrtes fodiens Parkesi, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 60.This species and the one following {hwrneisteri) are distinguishedfrom all others of the genus known to me by the presence of a toothon the inner apical margin of the posterior coxa. The female of thisspecies may be distinguished from the female of Imrnieisteri by thecolor of the sixth tergite, which is black on fodiens and yellow onhurmeisteri. The form of the sixth tergite is shown in Figure 38.SPECIMENS EXAMINEDGeobgia: Spring Creek, Decatur County (July 16, 1912).Louisiana: East Point (September 5, 1907, F. C. Bishopp) ; New Orleans (EdFoster).Mississippi: Utica (Ashmead).MissoxjRi: St. Louis (Rau).Texas: Calvert (June 27, 1907, F. C. Bishopp).BICYRTES BURMEISTERI (Handlirsch)BemNdula durmeisteri Handlirsch, Sitz. Akad. Wissensch. Wien. Math.-Nat.CI., vol. 98, 1889, p. 500.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 494.Bicyrtes hurmeisteri Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 62.I have before me three females that I have referred to this species,all of which vary somewhat from Handlirsch's description of thespecies. But, since the original description was made from, a singlespecimen, some variation from the description is to be expected. Nospecimen has any maculation on the mesopleura. All have narrowapical fasciae joining the lateral spots on the sternit^s. One (fromTexas) has the scape wholly yellow. Of the other two (from Mexico)one has a well-developed, curved fascia on the propodeum, while theother has no trace of such a fascia. The specimen from Texas andone of the two from Mexico have conspicuous lateral spots and a pairof small discal spots on the first tergite, whereas the second one fromMexico has the first tergite wholly black. This specimen and the onefrom Texas have the wings but slightly infumated but the otherMexican specimen has the wings almost as heavily infumated as arethe wings of fodiens. So far as I am aware, the male of this specieshas not been described. SPECIMENS EXAMINEDMexico: Guadalajara (July 5, 1903, McClendon).Texas: Brownsville (September 29, 1906, J. C. Crawford).
j?HT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 169BICYRTES VENTRALIS (Say)Figure 16Monedula ventralis Say, Exp. St. Peters River, vol. 2, 1824, p. 336.Bicyrtes servilil Leh^eletier, Hist. Nat., vol. 3, 1845, p. 63.BemHdula ventralis Handlirsch, Sitz. Akud. Wissensch. Wien, Math.-Nat. CI.,vol. 98, 1889, p. 495.?Daxla Torre, Cat. Ilym., vol. 8, 1897, p. 490.Bicyrtes ventralis Pabkek, Proc. U. S. Nat. Mu?., vol. 52, 1917, p. 62.This is the most abundant species of the genus in North America;and is widely distributed over the United States and Canada. In thewestern part of the United States it is largely replaced by parata.The males of these two species are the only ones that have the middlefemur provided with a distinct tooth near the proximal end below.Along with the wide dispersal of ventralis goes a wide variation inthe extent and color of the maculations, and this variation holdstrue for both males and females. The color varies from orangejellow through lighter shades to light creamy white. My observa-tions on this species seem to indicate that in the western part of itsrange it appears only in the light-colored forms. The wings areinfumated, but the degree of infumation a|so varies.BICYRTES PARATA (Provancher)Monedulu parata Pbovanchek, Add. Hym. Quebec, 1888, p. 416.Beiiibidula parata Fox, Proc. Acad. Sci. Phila., 1895, p. 353.Bembidula meliloti Rohwer, Ent. News, vol. 19, 1908, p. 376.Bicyrtes parata Pabkeb, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 64.This is a western species and as now recognized appears undertwo forms, one in which both males and females have the maculationgyellow and the other in which both males and females have themaculations white. As was pointed out in the notes on venfraUs,that species and this one, in regard to the male, are characterized bythe presence of a tooth on the middle femur. Furthermore, theantennae of the males of these two species have the same modifica-tions. The male genitalia of the two species show no trustworthydifferences. Even the infumation of the wings can not be rejied uponto separate the two species. It follows, therefore, that we mustdepend upon the maculations, upon their extent and their color,for characters with which to separate the two species.On typical forms of parata the color of the maculations is yellow,the fasciae on the tergites are broad, either all narrowly interrupted orsome interrupted and some continuous. In addition, the sixth tergiteof the female and the seventh of the male bear conspicuous lateral spots-In typical forms of ventraJls the fasciae on the tergites are alwaysinterrupted, relatively narrow, and the fascia on the first tergite ismuch reduced or wanting. The sixth termite of the female and the
170 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75seventh of the male are invaribly black. Uufortunately, all speci-mens are not typical, and it is these nontypical forms that cause thedifficulty in identification. The white forms of parata might beconsidered a distinct species were it not for the fact that there is anintermediate series passing by gradations over to the yellow formof farata on the one side and another series passing likewise over toventralis on the other side. Much more work must be done in thefield before the problem here presented can be solved in a satisfactorymanner. SPECIMENS EXAMINEDCalifornia: Los Angeles County (September, Coquillet) ; San BernardinoCounty (May, Coquillet),Netw Mexico: Pecos (September 2, Cockerell).Texas: Round Mountain (CoquUlet).Washington: Spokane (July 7, 1924, J. M. Aldrich).The species has also been reported from Utah and Arizona.BICYRTES ODONTOPHORA (Handlirsch)Figure 36Bemhidula odontopliora Handlirsch, Sitz. Akad. Wisseusch, Wien, Math.-Nat,CI., vol. 98, 1889, p. 482.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 495.The male of this species can not be confused with that of any otherspecies known to me. The dilated and flattened segments of theanterior tarsus give to the males of this species a character uniquein the genus. Handlirsch separates the females of this species fromthose of discisa, which most closely resemble it, chiefly on the charac-ter of the punctation of the scutellum, which is much finer than ondiscisa. This character, unless both species are available for com-parison, is difficult to use. I have before me a single female that Ihave referred to this species. The discal maculations on the scutumare lines and the lateral spots on the scutellum are approximatelyrectangular, whereas the corresponding maculations on discisa arereally spots on the scutum and triangular spots on the scutellum.The female of inendica is distinguished from both discisa and odon-tophora by having the tibiae and the tarsi entirely yellow.SPECIMENS EXAMINEDBolivia: Near mouth of Rio Maxiri (September, W. M. Mann).Peru: Puerto Bermudez (Cornell University Expedition).Venezuela: Rio Moto, Cuara District (October, 1909, M. A. Carricker).The female referred to this species bears the label, " Furo deK-esaco, 10 Sept., night. Cornell Univ. Exped." The specimens onwhich Handlirsch based his description of the species were fromPeru.
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 171BICYRTES DISCISA (Taschenberg)Figure 43Monedula discisa Taschenberg, Zeitschr. f. d. ges. Nat., vol. 36, 1870, p. 26.Bembidula discisa Handlibsch, Sitz. AJiad. Wissenscli. Wien, Math.-Nat. CI.,vol. 98, 1889, p. 485.?Dalla Tobke, Cat. Hym., vol. 8, 1897, p. 495.The males of this species (and of odontophora) have the fifth seg-ment of the flagellum distinctly wider than any other segment in it.In both species the males have the second sternite with an evidentprocess, but discisa differs from odontophora in having the anteriortarsus of normal form, in having the posterior border of the middlefemur plain, and in having the apical segment of all tarsi entirelyor in part black. The fasciae on the tergites of both sexes of discisaare almost white and are narrow, narrower than those on spinosa andmuch narrower than those on variegata.SPECIMENS EXAMINEDArgentina: Carcarana (Brunner) ; Porterillos, Mendoza (March 18-20, 1920,Cornell University Expedition).Boliva: Cavinas, Rio Beni (January, 1922, W. M. Mann) ; Reyer (October1921, W. M. Mann) ; Huaclii Beni (September, 1921, Mann).Beazil: Chapada; Itapura, Matto Grosso (December 8, 1919, Cornell Univer-sity Expedition) ; Manaos (Mann and Baker) ; Natal (Mann) ; Para(Miss H. B. Merrill) ; Parintins (September 27, 1919, Parish).Costa Rica: San Carlos (Schild and Bergdorf),Paraguay : Sapucay (March 12, 1902),Peru: La Chorera to La Sombra, Putumayo District (August 21, 1920, CornellUniversity Expedition) ; Palcazu (Rosenberg).Venezuela: Rio Moto, Cuara District (October 9, M. A. Carricker).Handlirsch reports this species also from Mexico, Surinam, andUruguay. BICYRTES TRICOLORATA, new speciesFigure 40Type (male).?The maculations on this insect are an unusualcombination or fusion of yellow and ferruginous. As distinct fromthe black ground color the maculations are as follows : labrnm ; man-dibles, except tips; clypeus, except narrow basal border; frons be-tween and below insertion of antennae, except median apical spot;scape and first four segments of flagellum ; anterior orbits shortenedabove; narrow posterior orbits; posterior border of pronotum; sideof prothorax, including tubercle; broad, shortened lateral lines onscutum; fascia on posterior border of scutellum interrupted medi-ally; fascia on metanotum; curved fascia on dorsum of propodeumk
172 PROCEEDINGS OF THE NATIONAL MUSEUM vol.73extended in two points on its posterior surface; posterior lateralangles broadly and vertical anterior line on side of propodeum;metapleura; very large spot on mesopleura enclosing black spotbelow and prolonged on mesosternum ; broad, continuous fasciae ontergites 1-6, those on tergites 2 and 3 narrower on the disk than onthe sides of the tergites and notched at dorsal midline; apex ofseventh broadly; sternites, except median longitudinal spot on sec-ond and basal border more or less on others ; legs, except black spotson coxae and trochanters and dark line below on middle andposterior femora. The labrum and the tarsi are yellow; the tibiaeare largely yellow; the fasciae on the tergites are a combination ofyellow and ferruginous; elsewhere the maculations are either fer-ruginous or a fusion of yellow and ferruginous.The antenna is relatively heavy and stout, but aside from color itpresents no specific characters. The tegula, the base of the wingsand the veins are ferruginous in color and the infumation of thewings is slight and uniform. The second sternite bears a well-developed median, rounded, bluntly-pointed process situated aboutmidway between the basal and apical borders of the sternite. Thepubescence on head and thorax is white and short and on the clypeusand lower part of the frons it is silvery. On the abdomen thepubescence has a golden luster and on the seventh sternite it isunusually long and abundant.Length 18 mm. Described from a single male bearing the No.3782 and the label, "America Merid."Type.?In the Zoologisches Museum der Universitat, Berlin.BICYRTES VIDUATA (Handlirsch)Figure 47Bembid/ula viduata Handlibsh, Sitz. Akad. Wissensch. Wlen, Math.-Nat. CI.,vol. 98, 1889, p. 491.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 496.Bivyrtes viduata Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 69.This species may be distinguished, both males and females, fromall others, except gracilis, by the presence of the heavily infumatedarea (including the first cubital cejl) on the anterior wing. It isdistinguished from gracilis by its more extensive maculations andby the character of the male genitalia.I have before me of this species eight males and four females,collected by Mitchell and Cushman at Chisos Mountain, BrewsterCounty, Tex., June 10-12, 1908. I have also a female collected byC. F. Baker, labelled " Mexico," and a male that bears the label " SanRafael, Jicoltepec." The localities from which were collected the
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PAEKER 173two femajes on which Handlirsch based his description of the speciesis likewise indefinite.BICYRTES QUADRIFASCIATA (Say)Figures 15, 44MonedAila quadrifasciata Say, Exp. St. Peters River, vol. 2, 1824, p. 336.Brmhidula qimdrifasdata Handlirsch, Sitz. Akad. Wissenscli. Wien, Malh.-Nat. CI., vol. 98, 1889, p. 492.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 49S.Bcmbidula variegata Fox, Proc, Acad. Nat. Sci. Pliila., 1895, p. 353.Blciirtes quadrifasciata Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 65.This is one of the largest and most easily recognized species inthe United States, over the eastern part of which it is widely dis-tributed. It is replaced in Mexico, Central and South America byvariegata. from which the most elaborately maculated forms of thisspecies can with difficulty be distinguished. The males of the twospecies can usually be distinguished by the fact that quadHfasciatahas the scutum black or with weakly developed discal marks and hasthe fascia on the sixth tergite widely separated or reduced to lateralspots, whereas variegata has well-developed discal lines on the scutumand has the fascia on the sixth tergite broad and no more widelyinterrupted than are the fasciae on the other tergites. In case ofdoubt the genitalia must be considered. In the case of the femalethe sixth tergite of quadrifasciata is black; of variegata^ riiacuiated.SPEJCIMENS EXAMINEDAlabama: (C. F. Baker).Connecticut: Sheffield Island (August 16, 1901, J. L. Zabriskie).Florida: Crescent City (April 24, 1908, Van Duzee) ; Enterprise (May 1).Georgia: Okefenokee Swamp, Billy's Island (June 12, 1912); Stone Mountain(August 3, 1913).Illinois.Indiana.Iowa : Ames.Maryland: Great Falls (July 17, 1915, J. B. Parker).Massachusetts: Amherst (July 28, 1905).Netw Mexico: Albuquerque (Ashmead).New York: Long Island (Ashmead).Ohio: Cedar Point, Sandusky (July 23, 1913, J. B. Parker).Pennsylvania: Philadelphia (Skinner).South Carolina: Calhoun (E. S. G. Titus).Texas: Columbus; Mineola (June 26, 1906, E. C. Bishopp) ; Rosser (June 7,1905, F. C. Bishopp) ; San Antonia (Ashmead).Virginia: Norfolk (July 15, 1910, F. A. Johnston).Wisconsin: N. Hudson, St. Croix County (July 7, 1910); Genoa (July 12,1911).The species has been reported also from Kansas and New Jersey.
174 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75BICYRTES ANNULATA ParkerFigure 221Bicyrtes annulata Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 67.This species stands close to capnoptera Handlirsch, the female hav-ing the sixth tergite provided with a well-developed pygidial areaset off by distinct lateral ridges. It differs from capnoptera in havingmesopleural maculations, in the greater clearness of the wings, andin the more extensive development of the abdominal fasciae. Thetype of this species is a female in the collection of the University ofKansas. In a paragraph following the original description of thisspecies the type is referred to as a male. This was an error that Itake the opportunity here to correct.
specimens examinedArizona.California: Bard (June 15, 1920, H. R. Reed).New Mexico: Albuquerque (Ashmead) ; Mesilla Park (September 18, 1899,Cockerell )
.
Tbjxas: Chisos Mountains, Brewster County (June 10-12, 1908, Mitchell andCushman) ; Columbus; El Paso (August 21, 1908, F. C. Pratt).BICYRTES VARIEGATA (DUvier)Figure 45Benihex variegata Olivier, Enc. Meth., vol. 4, 1789, p. 292.BeinMdula variegata Handlirsch, Sitz. Akad. Wissensch, Wien, Math.-Nat. CL,vol. 98, 1889, p. 488.?Daixa Torre, Cat. Hym., vol. 8, 1897, p. 496.As has been pointed out above, this species is closely related toquadrifasciata. The characters, by means of which the two speciesmay be distinguished, are set forth in the discussion of that species.SPECIMENS EXAMINEDBolivia: Rurrenabaque, Rio Beni (October, Lopez).Brazil: Chapada (March) ; Peruambuco (December 8, 1882) ; Manaos (MissH. B. Merrill).British Guiana: Bartica (May 10, 1901).Chile: Santiago (1923, Father Claude Joseph).Ecuador : Guayaquil ; Posoria.Guatemala: Livingston (April 18, 1923, E. G. Smyth).Mexico : Jicaltepec ; Mazatlan ; San Juan Bantista. ^Paraguay: Sapucay (December 17, 1902).Venezuela: Rio Moto, Cuara District (October, 1909, M. A. Carricker).
"West Indies : St. Vincent.Handlirsch reports this species also from Cayenne and Peru.
ABT. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 175BICYRTES SPINOSA (Fabricins)Figure 37Bembex spinosa Fabricius, Ent. Syst., vol. 4, 1794, p. 458.Bembidula spinosa Handlirsch, Sitz Akad. Wissensch. Wien, Math.-Nat. CI.,vol. 98, 1889, p. 487.?Daixa Tokee, Cat. Hym., vol. 8, 1897, p. 495.This species bears some resemblance to variegrata. The discalmarks on the scutum, however, are distinctive, being relatively veryshort and very broad, either oval in outline or triangular, in whichcase the anterior end of the discal mark forms the base of the triangle.The triangular lateral spots on the scutellum show a tendency toelongate along the anterior border of the sclerite. The color, inwell-preserved specimens, is a bright orange yellow. The sixth ter-gite of some females bears, on the apical part of the tergite, short,weakly-developed lateral lines and the seventh tergite of the malebears well defined, rounded basal lateral angles. On many of thespecimens that I have referred to this species, both males andfemales, there is a consi^icuousi black spot at the base of the clypeus.SPECIMENS EXAMINEDEcuadoe: Guayaquil.Panama: Penta de Pena (July 24, 1908, R. E. B. McKenney),West Indies: Isle of Pines (July 9, 1900, Palmer and Riley) ; San Domingo.Handlirsch reports this species from Cuba.BICYRTES MENDICA (Handlirsch)Bembidula mendica Handlirsch, Sitz. Akad. Wissensch. Wien, Math.-Nat. CI.,vol. 98, 1889, p. 490.?Daixa Torre, Cat. Hym., vol. 8, 1897, p. 495.I have before me two females that I have referred to this species.They were taken at Pie de Paulo, San Juan, Argentina, March 11,1920, by the Cornell University Expedition.BICYRTES GRACILIS ParkerFigure 48Bicyrtes gracilis Parkeb, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 68.This species is known only from the type, a male, in the collectionof the University of Kansas, collected by F. H. Snow, Santa RitaMountains, Ariz.BICYRTES QUINQUEMACULATA, new speciesFigure 35Type (male).?Black: median spot at base of labrum; small basalspot below on scape; narrow, shortened anterior orbits; narrow,
176 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75much reduced, posterior orbits; fascia on metanotum ; curved fasciaon dorsum of popodeum; posterior lateral angles of propodeumjwidely separated spots on tergites 1-5, decreasing in size from oneto five ; spot at apex of anterior and middle femora ; line on anteriorborder of anterior and middle tibiae and metatarsus; basal part ofapical segment of anterior tarsus; yellow.The wings are slightly but distinctly and evenly infumated. Theflagella of the antennae are lost, only the first and second segmentsof one remain and these are black. The second sternite on the mid-line basally bears a carina that extends about half the length ofthe sternite, but does not terminate in a process or tooth. The pu-bescence on the labrum, clj^peus, and lower part of frons is quiteshort and silvery. Elsewhere it is short or lacking.Length 17 mm. Described from a single male collected by WilliamM. Mann at Carinas Beni, Bolivia, January, 1922.Ti/pe.?Cut. No. 40855, U.S.N.M.BICYRTES PULLATA, new speciesType (male).?Black: short, narrow anterior orbits; small spot atbase of scape below; minute lateral spot on scutellum; fascia onmetanotum; fascia on propodeum continued downward on posteriorsurface about half^vay; broad spot on posterior and dorsal surfacesof lateral angles of propodeum; widely separated lateral spots ontergites 1-4, decreasing in size from one to four; spot on distal endof middle femur ; anterior border of middle tibia ; anterior border ofanterior tibia and metatarsus; and basal part of apical segment ofanterior tarsus; yellow.The pubescence is short and sparse, being longest on the vertexand upper part of the frons. The antennae show no special mark-ings or modifications. The second sternite bears a small sharp-pointed but prominent median tooth. The wedgelike edge of thelateral angle of the propodeum shows, slightly above its middlepoint, a small toothlike prominence. The wings are hyaline.Although this form differs from quinquemaculata in having thewings hyaline instead of infumated, in having only four of thetergites maculated instead of five, and in having a prominent toothon the second sternite; nevertheless, further collecting and studymay prove that it is only a regional variety of that species. How-ever, with only these two specimens before me it seems to me bestto regard them as representatives of two distinct species.Length 17 mm. Described from a single male taken at Chapada.Brazil.Type.?In the Carnegie Museum at Pittsburgh, Pa.
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 177BICYRTES INSIDIATRIX (Handlirsch)Figure 46Bembidula insidiatnx Handlibsch, Sitz. Akad. Wissensch. Wien, Math.-Nat.CI., vol. 98, 1889, p. 491.?Dalla Torre, Cat. Hym., vol. 8, 1897, p. 495.Bicyrtes insidiatrix Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 71,This species seems most closely related to the following species(capnopfera) , with which it shares a tendency toward ferruginousmarkings. There is no tooth on the posterior coxa, the female lacksa pygidial area and lateral ridges on the sixth tergite, and the malelacks the tooth on the posterior proximal edge of the intermediatefemur. The legs are wholly ferruginous.SPECIMENS EXAMINEDNew Mexico.Texas: Clarendon (August 11, 1905, C. R. Jones) ; Jacksonville (June 28, 1906,F. C. Bishopp) ; Mineola (June 26, 1906, F. C. Bishopp) ; Rosser (August23, 1905, C. R. Jones).Handlirsch reports the species also from Kentucky.BICYRTES TRISTIS C. L. FoxBicyrtes trisHs C. L. Fox, Proc. Cal. Acad. Sci., vol. 12, 1923, p. 435.This species was described from a single male taken at La Paz^Lower California. It is closely related to oapnopfera and viesU-lensis, from which species it may be distinguished by the lack ofmaculation on the metanotum, the narrower fasciae on the tergites,and by the form of the seventh tergite, which in this species is muchnarrowed at the apex.BICYRTES CAPNOPTERA (Handlirsch)Bembidula capnoptera Handlirsch, Sitz. Akad. Wissensch, Wien, Math.-Nat.CI., vol. 98, 1889, p. 497.?Daixa Torre, Cat. Hym., vol. 8, 1897, p. 495.Bicyrtes capnoptera Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 72.The wings of this species are infumated, very heavily in the caseof some specimens, much less so in the case of others. The femalebears a well-marked pygidial area on the sixth tergite set off bydistinct lateral ridges, the apical part of the area being somewhatrugose. The male shows no structural modifications of legs orantennae that may serve to distinguish it from the males of otherspecies, SPECIMENS EXAMINEDGeorgia: Bainbridge (September 17-October 10, 1910, J. C. Bradley); Billy'sIsland, Okefenokee Swamp (June, 1912).Louisiana: Mansfield (August 22, 1906, F. C. Bishopp).22764?29 12
178 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75Texas: Barstow (July 22, J. 0. Crawford); Dallas (July 31, 1906, W. D.Pierce) ; Hearne (July 23, 1906, F. C. Bishopp) ; Marfa (June 5, 1908,Mitchell and Cushman) ; Mineola (July 23, 1906, F. C. Bishopp).Handlirsch reports this species also from Kentucky.BICYRTES MESILLENSIS (Cockerell)Bembidula capnoptera Handliesch, var. mesillensis Cockekell, Davenport Acad.Nat. Sci., vol. 7, 1898, p. 142, male.Bembidula mesillensis Cockebell, Can. Ent., 1899, p. 255, female.Bicyrtes mesillensis Parker, Proc. U. S. Nat. Mus., vol. 52, 1917, p. 73.In the collection of the United States National Museum are to befound two specimens of Bicyi'tes, a male and a female, bearing labelsthat point to these two specimens as the ones on which Cockerellbased his description of this species. In my previous paper (citedin the synonomy given above) I called attention to the divergentrelationships of the male and female that had been associated assexes of this species and raised the question of the validity of thisassociation. Since then I have examined a large number of Bicyrtes,including both male and female specimens, in the collection of theCalifornia Academy of Sciences, taken at the same time at PepperSauce Canyon, Ariz., all of which I am convinced belong to a singlespecies. The females in this number I regard as belonging to thesame species as the female that Cockerell described as the female ofmesillensis, but the males of this number do not belong to the speciesrepresented by the male on which viesillensis was based. It is myopinion that this group taken at Pepper Sauce Canyon representseither a regional variety of ventralls or possibly a new species andthat the female assigned by Cockerell to inesilleTisis belongs withthem, while the female of mesillensis still remains to be discovered.New Mexico: Las Cruces (Cockerell) male; Organ Mountains (Townseud)female. BICYRTES BRADLEYI, new speciesFigures 41, 42Type (female).?Black: labrum; clypeus; scape below; lower partof frons continued upward from between the antennae by a narrowline to unite with spot below anterior ocellus ; broad anterior orbits notreaching above level of anterior ocellus ; posterior orbits narrowed bothabove and below ; posterior border of pronotum including tubercles
;
spot on side of prothorax; broad lateral lines and pair of narrow,elliptical discal lines on scutum ; fascia on posterior border of scutel-lum narrowed medially and narrowly interrupted at midline; meta-notum; curved fascia on propodeum; lateral angles and sides ofpropodeum; large anterior and small posterior spot on mesopleura;
ART. 5 GENERIC REVISION OF THE FOSSORIAL WASPS PARKER 179broad fasciae on tergites 1-5 all narrowly interrupted at midline, thefirst broadest and narrowed abruptly at the midline, the remainderslightly sinuate on either side the midline; large median spot onsixth tergite; lateral spots on sternites 2-4, decreasing in size fromtwo to four; pair of small spots on anterior coxae; femora in part;tibiae except line below; and tarsi, pale creamy yellow. The tarsiare dark, almost ferruginous in color, and the maculations of thetibiae and femora are a richer yellow than those on the body.This species differs from a typical species of the genus in that,although the propodeum is concave on its posterior surface, the degreeof concavity is less than normal, and, furthermore, the posterior-lateral angles, although prominent, are rounded instead of beingdrawn out into sharp, wedgelike edges. It is further distinguishedby the fact that, although the specimen is a female, the secondsternite bears a pair of small sharp-pointed processes, which are theposterior ends of a U-shaped ridge on the sternite. The intermediatecoxa bears a small tooth. The sixth tergite, which bears a well-de-fined, heart-shaped pygidial area, ends in a sharp point, while thebroad apical end of the sixth sternite extends laterally on either sidethe tergite (fig. 41) in a fashion characteristic of this species.The mandibles and the flagella are black. The wings are almosthyaline. The pubescence on head and thorax is white, very fine,and very short. The puncturing of the scutum and scutellum isuniform, very fine, and very close, much finer and closer than in thecase of variegata or discisa^ with which species it has been compared.It is a very unusual species.Length 14 mm. Described from a single female collected March,1920, at Pie de Palo, San Juan, Argentina, South America, by J.Chester Bradley, for whom the species is named.Type (female).?In the collection of Cornell University.BICYRTES PEXA, new speciesTyjye (female).?Black: labrum; base of mandibles; clypeus, ex-cept large triangular blotch at base; scape below; small spot be-tween antennae; broad, but short, anterior orbits; posterior orbitsvery narrow above ; broken fascia on posterior border of pronotum
;
posterior border on tubercles; spot on tagulae; spot on base of an-terior wings; short, lateral lines on scutum at base of wings; small,rounded lateral spots on scutellum ; narrow, arcuate fascia on dorsumof propodeum; broad spot on its lateral angles; small spot nearbase of wings on mesopleura; interrupted fasciae on tergites 1-5,with width of interruption increasing from first to fifth, and allfasciae narrowed toward the middorsal line, except the fifth; smalllateral spots on sixth ; lateral spots on sternites 2-4 ; spot on coxae
180 PROCEEDINGS OF THE NATIONAL. MUSEUM vol.75femora in part; anterior surface of tibiae; and tarsi more or less;pale yellow.The pubescence is inconspicuous, though the labrum and the basalsegments of the legs show a slight silveriness. The flagellum isblack. The dorsum of the thorax, especially the scutellum, showsa beautiful metallic irridescence. In color the maculations of thehead are a greenish yellow, of the body pale, and of the legs richyellow. On the front legs all segments of the tarsus are marked withyellow, on the second pair only the first and last segments, and onthe third pair only the metatarsus. The wings are almost hyaline,showing only very slight uniform infumation. The sixth tergitebears a pygidial area set off by weak, lateral lines or ridges. Themiddle part of the pygidial area is devoid of punctures and its lateralareas are covered with coarse, rather widely separated punctures.The areas laterad of the ridges are covered wnth fine, closely-placedpunctures. The sixth sternite, which extends laterad of the sixthtergite much as is the case with B. capnoptera Handlirsch, is dis-tinctly carinate on the midline and is finely punctulate with a fewscattered coarser punctures.Length 15 mm. The species is described from a single femalefrom Cayenne, South America.Type (female).?In the Carnegie Museum at Pittsburgh, Pa.BICYRTES ANGULATA (Smith)Moncdula angulata Smith, Cat. Hym. Brit. Mus., vol. 4, 1S56. p. 334.Bcmhidula angulata ITandliksch, Sitz. Akad. Wissensch. Wien. Math.-Nut. CI.,A-ol. 98, 1889, p. 480.?Dalla Torre, Cat. Hym., vol. 8. 1897, p. 494.I have before me three females that I have referred to this species,which differs from all other species in the genus in having the dorsalangle of the posterior-lateral margin of the propodeum drawn outinto a point. The fasciae on both tergites and sternites are usuallybroad and continuous, but on one of the three females at hand thefasciae on tergites 1-3 are very narrowly interrupted. The legs arealmost wholly ferruginous and the wings are slightly and uniformlyinfumated. SPECIMENS EXAMINE?Brazil : Pernambuco (January 1, 1883).Paraguay: Sapucay (April 8, 1903, W. T. Foster).Handlirsch reports this species also from Cayenne.BICYRTES SOLA, new speciesType (female).?Black: labrum; mandibles, except tips; clypeus;lower part of frons; antenna, except last four segments; orbits; line
ART. 5 GENERIC REVISION OF THE FOSSORIAL. WASPS?PAEKEB 181on pronotum; tubercles; tegiilae; lateral line on scutum abovetegula; pair of small discal spots on scutum; curved fascia on pos-terior border of scutellum; fascia on metanotum; curved fascia ondorsum of propodeum extended in two points on posterior surface;lateral angles of propodeum; three spots in vertical line on meso-pleura; broad fasciae on tergites 1-5, interrupted medially on 1-4,much narrowed toward interruption on first tergite, less so on tergites2-4. broad, continuous fascia on 5; sixth tergite entirely; narrow,apical fascia on first sternite; large, lateral spots on second sternite,joined by a narrow, apical fascia; broad fasciae on sternites 3-5,each enclosing a darker median area; sixth sternite entirely; andlegs; yellow or yellow and ferruginous.The markings on the abdomen and thorax are in the main richyellow, but on all parts of the body there is a tendency towardferruginous. The combination of yellow and ferruginous is bestseen on the clypeus and on the legs, the basal parts being ferrugi-nous and the distal parts yellow. The scape is yellow below, fer-ruginous above. The flagellum is ferruginous, growing darkertoward the distal end, where the last four segments are black, exceptthat the ultimate segment is tipped with ferruginous. The clypeusand frons are covered with short, silvery pubescence. On mesopleurathe pubescence is white and somewhat longer. Elsewhere pubes-cence is practically wanting. The wings are without infumation.The punctures on the scutum and scutellum are somewhat coarseand uniform in distribution. The sixth tergite lacks a pygidialarea and lateral ridges.Length 18 mm. Described from a single female from Chapada,Brazil.Type (female).?In the Carnegie Museum at Pittsburgh. Pa.EXPLANATION OF PLATESThe figures of the wings were made from projections of the wings mountedin balsam under cover glasses, and are therefore exact in outline and propor-tions. The degree of magnification in the projections was approximately thesame for all wings, so that the relative sizes of the figures show the relativesizes of the wings of the species selected as illustrations. All other figuresare camera lucida drawings made directly from the parts illustrated, but thescale of magnification is not uniform so that the sizes of the figures do notshow the relative sizes of the parts illustrated. In the case of the males thespecimens were relaxed and the genitalia were then removed, mounted onpaper points, and permitted to dry. All figures of male genitalia were mndefrom such mounts; no balsam mounts of genitalia were used. In assemblingthe flgiires on the several plates the author has endeavored to group themtogether in such manner as will render them most helpful in the determina-tion of species of these wasps.
Plate 1Fig. 1. Stizus ruficomis (Fabricius). Head, front view.2. Stizus texanus Cresson. Wings.3. Bemhioinus tridens (Fabricius). Head, front view.4. Bembicinus godmani (Cameron). Wings.5. Sti^oides tridentatus (Fabricius). Head, front view.6. Stisoides tridentatus (Fabricius). Wings.7. Steniolia duplicata Provancher. Head, front view.8. Steniolia duplicata Provancher. Wings.9. Microhemhex monodonta Say. Head, front view.10. Microbembex monodonta Say. Wings.182
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 75, ART. 5, PL. 1
FOSSORIAL WASPS OF STIZINI AND BEMBICINIFor explanation of plate see page 182
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 75, ART. 5, PL. 2
FOSSORIAL WASPS OF STIZINI AND BEMBICINIFor explanation of plate see page 183
Plate 2Fig. 11. Trichostiotia i^ulpina (Handlirsch). Head, front view.12. Trlchostictia vulpina (Handlirsch). Wings.13. Stictiella pulchella (Cresson). Head, front view.14. Stictiella scitula (Fox). Wings.16. Bicyrtes guadrifasdata (Say). Head, front view.16. Bicyrtes ventralis (Say). Wings.17. Selman angustus Parker. Head, front view.18. Selman angustus Parker. Wings.19. Therapon chilensis (Eschscholz). Head, front view.20. Therapon chilensis (Eschscholz). Wings. 183
Plate 3Fig. 21. Rubrica gravida f Handlirsch ) . Head, front view.22. Rubrica gravida (Handlirsch). Wings.23. Stictia signata (Fabricius). Head, front view.24. Stictia Carolina (Fabricius). Wings.25. Editha magnifica (Perty). Head, front view.26. Editha magnifica (Perty). Wings.184
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 75, ART. 5, PL. 3
FOSSORIAL WASPS OF STIZINI AND BEMBICINIFor explanation of plate see page 184
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 75, ART. 5, PL. 4
FOSSORIAL WASPS OF STIZINI AND BEMBICINIFor EXPLANATfON OF PLATE SEE PAGE 185
Plate 4Fig. 27. BemMx apinolae Lepeletier. Head, front view.28. Benihix similans Fox. Wings.29. Stisus occidentalis Parker. Genitalia, male.30. Stizoides tridentatus (Fabricius). Genitalia, male.31. Steniolia longirostns Say. Genitalia, male.32. SticUeUa formosa Cresson. Genitalia, male.33. Stictiella femorata Fox. Genital stipites, male.34. Stictiella divergens Parker. Genital stipites, male.35. Bicyrtes quinquemaculata Parker. Genitalia, male.36. Bicyrtes odontopJiora (Handlirscli). Anterior tarsus, male.37. Bicyrtes spinosa (Fabricius). Sixth tergite, female.38. Bicyrtes fodiens (Handlirsch). Sixth tergite, female.39. Bicyrtes spinosa (Fabricius). Seventh tergite, male. 185
Plate 5Fig. 40. Bicyrtes tricolorata Parker. Genitaia, male.41. Bicyrtes hradleyi Parker. Sixth tergite, female.42. Bicyrtes hradleyi Parker. Propodeum, dorso-posterior view, female.43. Bicyrtes discisa (Taschenberg). Flagellum, male.44. Bicyrtes quadrifasciata (Say). Genital stipes, male.45. Bicyrtes variegata (Olivier). Genital stipes, male.46. Bicyrtes insidiatrix (Handlirsch). Genital stipes, male.47. Bicyrtes viduata (Handlirsch). Genital stipes, male.48. Bicyrtes gracilis Parker. Genital stipes, male.49. Microbemhex sulphurea (Spinola). Posterior femur, male.50. Microbembex sulpMirea (Spinola). Spine of eighth stemite, latero-ventral view, male.61. Microbembex natalis Parker. Sixth tergite, dorso-posterior view,female.52. Microbembex natalis Parker. Sixth tergite, lateral view, female.53. Microbembex tricosa Parker. Sixth tergite, dorsal view, female.54. Microbembex tricosa Parker. Seventh tergite, dorsal view, male.55. Microbembex tricosa Parker. Genitalia, male.56. Microbembex bidens Parker. Spine of eighth sternite, lateral view,male.57. Microbembex bidens Parker. Genitalia, male.58. Microbembex bidens Parker. Sixth tergite, female.59. Microbembex bidens Parker. Seventh tergite, male.186
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 75. ART. 5. PL. 5
M\ ?
FOSSORIAL WASPS OF STIZINI AND BEMBICINIFor explanation of plate see page 186
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 75, ART. 5, PL. 6
FOSSORIAL WASPS OF STIZINI AND BEMBICINIFor explanation of plate see page 187
Plate 6Fig. 60. Miorobembex nastita Parker. Head, lateral view, female.61. Microbembex nasuta Parker. Head, front view, female.62. Microbembex equuHs Parker. Second cubital cell, female.63. Microbembex equalis Parker. Sixth tergite, female.64. Miorobembex aurata Parker. Process on second sternite, male.65. Microbembex monodonta (Say). Process on second sternite, male.66. Microbembex Mrsuta Parker. Process on second sternite, male.67. Microbembex nasuta Parker. Anterior metatarsus, female.68. Microbembex nasuta Parker. Sixth tergite, female.69. Trichostictia imlpina (Handlirsch). Genitalia, male.70. Trichostictia guttata (Taschenberg). Genitalia, male.71. Trichostictia vulphva (Handlirsch). Seventh tergite, male.72. Stictia trifasciata Parker. Genitalia, male.73. Rubrica survnamensis (Degeer). Genitalia, male.74. Stictia mexicana (Handlirsch). Flagellum, female. 187
Plate 7Fig. 75. Editha magnifica (Perty). Genitaliu, male.76. Therapon chilensis (Eschscholz). Seventh tergite, male.77. Therapon chilensis (Eschscholz). Genitalia, male.78. Therapon chilensis (Eschscholz). Basal segments of middle leg79. Therapon chilensis (Eschscholz). Flagellum, male.80. Bemhix agrestis Parker. Sixth tergite, female.Seventh tergite, male.Genitalia, male.Flagellum, male.Genitalia, male.Genitalia, male.Seventh tergite, male.Genitalia, male.Seventh tergite, male.
male.
81. Bembix agrestis Parker.82. Bembix agrestis Parker.83. Bembix aldabra Parker.84. Bembix aldabra Parker.85. Bembix albata Parker.86. Bembix albata Parker.87. Bembix alacris Parker.88. Bembix alacris Parker.188
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 75. ART. 5, PL. 7
i''>i^"iP';^,;.i
FOSSORIAL WASPS OF STIZINI AND BEMBICINIFor explanation of plate see page 188
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 75, ART. 5, PL. 8(r^^^
101 103 106FOSSORIAL WASPS OF STIZINI AND BEMBICINIFor explanation of plate see paqe 189
Plate 8Fig. 89.90.91.92.93.94.95.96.97.98.99.100.101.102.103.104.105.106.
BetnMxBemhixBemhixBcniHxBemhixBemhixBcmbixBemhixBemhixBemhixBemhixBemhixBemhixBemhixBemhixBemhixBetnhixBemhix
alaerls Parker.haluioe Parker.festiva Parker.festiva Parker.festiva Parker.flavolatera Parker.flavolatera Parker.
Flagellum, male.Genitalia, male.Genitalia, male.Seventh tergite, male.Flagellum (apical segments), male.Genitalia, male.Seventh tergite, male.hellatrix Parker. Clyi)eus and frons, female.foreipata Handlirsch. Middle femur, male.forcipata Handlirsch. Genitalia, male.foreipata Handlirsch. Flagellum (apical part), male.frioensis Parker. Genitalia, male.frioensis Parker. Seventh tergite, male.fumida Parker. Genitalia, male.fiimiila Parker. Seventh tergite, male.fucosa Parkex'. Flagellum, male.fucosa Parker. Genitalia, male.fucosa Parker. Seventh tergite, male. 189
Plate 9Fig. 107. BetnMx g&nerosa Parker. Sixth tergite, dorsal view, female.108. Bemhix generosa Parker. Sixth tergite, lateral view, female.109. Beinbix gracilens Parker. Sixth tergite, female.110. Bemhix hamata C. L. Fox. Seventh tergite, male.111. Bemhix hamata C. L. Fox. Flagellum, male.112. Bemhix hamata 0. L. Fox. Genitalia, male.113. Bemhix krelchhaume^-i Handlirsch. Seventh tergite, male.114. Bemhix hreichhaumeri Handlirsch. Genitalia, male.115. Bemhix laeta Parker. Sixth tergite, female.116. Bemhix levis Parker. Genitalia, male.117. Bemhix levis Parker. Flagellum, male.118. Bemhix levis Parker. Seventh tergite, male.119. Bemhix liheriensis Parker. Sixth tergite, female.120. Bemhix liheriensis Parker. Genitalia, male.121. Bemhix liheriensis Parker. Seventh tergite, male.122. Bem.hix liheriensis Parker. Flagellum, male.190
U. S. NATIONAL MUSEUM PROCEEDINGS. VOL. 75, ART. 5, PL. 9
119 121FOSSORIAL WASPS OF STIZINI AND BEMBICINI 122For explanation of plate see page 190
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 75, ART. 5, PL. 10
137FOSSORIAL WASPS OF STIZINI AND BEMBICIIFor explanation of plate see page 191
I'LATE 10Fig. 123.124.125.126.127.128.129.130.131.132.133.134.135.136.137.
BcmbixBenibixBembixBembixBenihixBembixBembixBembixBembixBembixBembixBonbixBembixBetnbixBembix
loupata Parker.loupata Parker.lotipata Parker.loupata Parker.
Genitalia, male.Seventh tergite, male.Flagellum, male.Middle femur, male.magdalena C. L. Fox. Seventh tergite, male.magdalerva 0. L. Fox. Genitalia, male.merceti Parker. Flagellum, male.Anterior tibia and metatarsus, male.Middle tibia, male.Genitalia, male.Seventh tergite, male.Sixth tergite, dor.so-lateral view, female.Labrum, lateral view, female.Genitalia, male.Seventh tergite, dorso-lateral view, male.191
merceti Parker.merceti Parker.merceti Parker.merceti Parker.mima Handlirsch.mima Handlirsch.mima Handlirsch.mima Handlirsch.
Plate 11Fio. 138. Bembix miscrabilis Parker. Genitalia, male.139. Bembix miscrabilis Parker. Seventh tergite, male.140. Bem-bix miscrabilis Parker. Flagellum, male.141. Bembix nigrocorimta Parker. Seventh sternite, ventral view, male142. Bembix nigrocornuta Parker. Genitalia, male.143. Bembix nigrocornuta Parker. Seventh tergite, male.144. Bembix nigrocornuta Parker. Flagellum, male.145. Bembix niponica Smith. Spine of eighth sternite, male.146. Bembix ochracea Handlirsch. Flagellum, male.147. Bembix ochracea Handlirsch, Genitalia, male.148. Bembix ochracea Handlirsch. Seventh tergite, male.149. Bembix opinabilis Parker. (Genitalia, male.150. Bembix opinabilis Parker. Sixth tergite, female.151. Bembix opinabilis Parker. Seventh tergite, male.152. Bembix opinabilis Parker. Flagellum, male.153. Bembix orient alls Handlirsch. Seventh tergite, male.154. Bembix orientalis Handlirsch. Flagellum, male.155. Bembiw orientalis Handlirsch. Genitalia, male.156. Bembix persimilis Turner. Spine eighth sternite, male.157. Bembix persimilis Turner. Anterior metatarsus, male.192
U. S. NATIONAL MUSEUM PROCEEDINGS. VOL. 75, ART. 5. PL. 11
FOSSORIAL WASPS OF STIZINI AND BEMBICINIFor explanation of plate see page 192
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 75, ART. 5, PL. 12
167 170FOSSORIAL WASPS OF SXIZINI AND BEMBICINIFor explanation of plate see page 193
Plate 12Fig. 158. Bemhix persitnilis Turner. Genitalia, male.159. Bemlyix picticollis Morawitz. Flagellum, male.160. Bemhix picti<;ollis Morawitz. Genitalia, male.161. Bemhix inoticolUs Morawitz. Seventh tergite, male.162. Bemhix quinquespinosa Parker. Flagellum, maU'.163. Bemhix quinquespinosa Parker. Genitalia, male.164. Betnbix quinquexpinosa Parker. Seventh tergite, male.165. BcmJyix recurva Parker. Seventh tergite, lateral view, male.166. Bemhi.t recurva Parker. Seventh tergite, dorsal view, male.167. Bemhijp recurva Parker. Flagellum, male.168. Bcmhix recurva Parker. Genitalia, male.169. Bemhix refuscata Parker. Genital stipes, lateral view, male.170. Bemhix refuscata Parkei*. Genitalia, male.171. Bemhix refuscata Parker. Middle metatarsu.s, male.172. Bcmhix rcgia Parker. Labrum, lateral view, female.178. Bcmhix regia Parker. Labrum, front view, female.22764?29 13 193
I
Plate 13Fig. 174. Bemhix175. BemUx176. Betnhix177. Betnhix178. Bcmhix179. Bembix180. Bemhix181. Bembix182. Bembix183. Bembix184. Bembix185. BembixISG. Bembix187. Bembix188. Bembix189. Bembix190. Bembix191. Bembix192. Bembix194
refl'ia Parker. Middle tarsus, male,rcfifia Parker. Genitalia, male,
rcf/iffl Parker. Middle femur, male.reg^/a Parker. Anterior metatarsus, male,re^ia Parker. Spiue of eighth sternite, lateral view, male.regnata Parker. Middle femur, male.regnata Parker. Middle tibia, male.regnata Parker. Flagellum, male.regnata Parker. Genitalia, male.regnata Parker. Seventh tergite, male.residua Parker. Flagellum, male.residua Parker. Geutalia, male.residua Parker. Seventh tergite, male.rostrata Linnaeus. Flagellum, male.rostrata Linnaeus. Genitalia, male.rostrata Linnaeus. Seventh tergite, male.seoulata Parker. Gentalia, male.seculata Parker. Seventh tergite, male.sectiJata Parker. Flagellum, male.
U. S. NATIONAL MUSEUM PROCEEDINGS. VOL. 75, ART. 5, PL. 13
188 191FOSSORIAL WASPS OF STIZINI AND BEMBICINIFor explanation of plate see page 194
192
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 75, ART. 5, PL. 14
208 205FOSSORIAL WASPS OF STIZINI AND BEMBICINIFor explanation of plate see page 195
Plate 14Fig. 193. Bembix spatulata Parker. Middle tibia, dorsal view, made.IJM. Bembix spatulata Parker. Genitalia, male.195. Bembix spatulata Parker. Seventh sternite, ventral view, male.196. Bembix stevensoni Parker, Middle tibia and metatarsus, male.197. Bembix stevensoni Parker. Genitalia, male.198. Bembix stevensoni Parker. Flagellum, male.199. Bembix stevensoni Parker. Seventh tergite, male.200. Bembix stevensoni Parker. Sixth tergite, female.201. Bembix tenebrosa Parker. Genitalia, male.202. Bembix tenebrosa Parker. Flagellum, male.203. Bembix tenebrosa Parker. Left middle tibia, dorsal view, male.204. Bembix tenuifasoiata Parker. Seventh tergite, male.205. Bembix tenuifasciata Parker. Genitalia, male.206. Bembix tenuifasoiata Parker. Flagellum, male.207. Bembix trepanda Dahlbom. Flagellum, male.208. Bembix trepanda Dahlbom. Seventh tergite, male.209. Bembix trepanda Dahlbom. Genitalia, male. 195
Plate 15Fig. 210. BemUx211. Bemhix212. Bembix213. Bembix214. Bembix215. Bembix216. Bembix217. Bembix218. Bembix219. Bembix220. Bembix221. Blcyrtes222. Bembix223. Rnbrica19G
torosu Parkej'. Geuitalia, male.torosa Parker. Spine of eighth sternite, ventral view, male.tarosa Parker. Flagelhim, male.torosa Parker. Seventh tergite, male.iorosa Parker. Middle femur, male.rvgosa Parker. Labrum, female.ruffosa Pra'ker. Sixth rergite. female.arcvata Parker. Genital .stipes, male.V-seripia Fox. Geiiiral stipes, male.palmaia Smith. Anterior metatarsus, female.arcuata Parker. Front wing.anuulata Parker. Genital stipes, male.eom-antis Parker. Genital stipes, male.(/rarida (Ilandlirsi h i. Sixth tergite, female.
U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 75, ART. 5, PL. 15
221 FOSSORIAL WASPS OF STIZINI AND BEMBICINIFor explanation of plate see page 196

( INDEXPageaberantes, B. Heniheces 155ackuowledgiuonts f-. 6adonis, Editha ISadonis, Monedula - -- ISagrestis, Bembix 135alacris, Bembix 99albata, Bembix 127albicantia, Steniolia 52sldabra, Bembix Wamoena, Bembex 104Bembix.. 104andrei, Monedula 3?)Stictia - 3i)angulata, Bembidula 180Bicyrtes - 180Monedula 180angustus, Selman - -- 20annulata, Bicyrfcea - 174antiopa, Monedula 2f5Stictia 2ijApis rostrata - 56, 114surinamensis - 55aiTuata, Bembix., %Monedula 34Stictia 34argentata, Stictiella. - 45atrifrons, Bembex - 140Bembix..- 140aurata, Microbembex 160bahlae, Bembix 138belfragei, Bembex 103Bembix -.- 103bellatrix, Bembix 151Bembex 21,56amoena 104atrifrons 140belfragei. -.. - 103beutenmuUeri - 131bidentata 81borneana 146borrei 148brullei- 129capensis 143Carolina 28cinerea - --. 93connexns - 121cressonis 103diversipennis 138(loriae 91fasclata... 122rtavescens 121forcipata. ? 116fuscipennis 91handlirschi 110heros - 25infumata 132inops - 133insignis 103
PagoBembex insularis 95integra - 103kriechbaumeri 128latifasciata 150lincata 32littoralis...- 133lougirostris 47maculata 31madecassa - 139niediterranea 84inegerlei - 115melaucholica 148nielanopa 115niima 70mobii - 83nionodonta 155, 161multipicta - 133muscicapa 119niponica -. 120nubilipsunis --. 109,132obsoleta 131occidentalis 132ochracea - - --- 118oculata - 106orientalis 101palmata 147persimilis -. 88plcticoUis -. 114primaaestate... - 124pruinosa. - 130pugillatris - 87punctata 32raptor 129rostrata 114ruficornis 9sayi 105,119similans 125sinuata - 96spinolae-.- -..- 122,123spinosa 175sulfurea 158sulphurea 158taiwana - 71texana - 136trepanda 101tridentifera 147troglodytes 137U-3cripta 97variablilis - 139variegata 174velox 97zonata 128Bembicinae, key to tribes of 7Bembicini, key to genera of 11Bembicinus, generic description 8Bembidula - 165angulata 180burmeisteri - 168197
198 INDEXPageBembidula capnoptera 177discisa _ - 171fodiens... 168insidiatrix 177ineliloti 169mcndica.-- - 175mesillensis 178odontophora 170parata.- 169quadrifasciata 173spinosa 175variegata 173, 175ventralis 169viduata 172Bembix. 5,66a grestis 135alacris.. 99albata 127aldabra 99amoena '. 104areuata 96atrifrons 140bahiae... 138befragei 103bellatrix 151beutenmulleri 131bidentata 81borneana 146borrei 148brullei 129cameroni 123capensis 143cinerea.. 98comantis _ 131comata 124connexa 121diversipennis 138doriae 91festiva 118flavescens 121flavolatera 134forcipata. 116formosana 128foxi 119frioensis 116fucosa 72fumida 105fnscipennis 91generic description of 56generosa 163gracilens 143gradilis 122hamata 109helianthopolis 137hexaspila 145hinei 98incognita 154infumata 132inops 133insularis 95Integra 103key to species of 57kriechbaumeri... 128laeta 151latifasciata 150latifrons 121levis 78
PageBembix libeiiensis 126littoralis 133liventis 144longipennis.. 149loupata 73luzonensis 141madecassa 139magdalena 81niediterraijea... 84niegerlei 115
?nielanaspis 136melancholica 148melanopa 115merceti 110mima 70miserabilis 108mobii 83multipicta 133muscicapa 119nigrocornuta 106niponica 120nubilipennis 109nubilosa 140nupera 142oeeidentalis 132ochraces 118ocuiata 106opinabilis.. 79orientalis 101palmata 147persimilis 88picticollis 114piraporae 153primaaestate 124pruinosa 130pugillatrix 87quinquespinosa 86raptor 129reciirva 76lefiiscata 94regia 68regnata Illresidua 75rostrata 114nigosa 103sayi 105, 119seculata 101similans. 125sinuata 96spatulata 112spinolae... 122, 123spiritalis 147stenebdoma 83stenobdoma 83stevensoni 92taiwana 71tenebrosa 90t enuifasciata 82texana ^ 136torosa 84trepanda 101troglodjies 137U-scripta 97ariabilis 139vdox 9770nata 138
INDEX 199PageBembyx - 21,50cameroni 123obsoleta 131puncl ata 32beutenmulleri, Bcmbcx 131Bembix 131BicjTtcs 164angulata -- 180annulata 174bradleyi - 178burmeistcri. 168capnoptcra 177discisa 171fodiens 168generic dfscription 165gracilis 175insidiat rix 1 77key of species of .- 165mendica - 175mesillciisis 178odontophora - 170parata 169pexa 179pulata 176quadrifaseiata 173qulnquemaculata 175servilii _ 169sola - 180spinosa - 175trieolorata- 171tristis 177variegata 174ventralis 159viduata 172bidens, Miciobembex 157bidentata, Bembex 81Bembis- 81bifurcata, Stktiella 44bituberculata, Stictlella 41bornena.Bembex l46Bembis 146borrci, Bembex 148Bembix.. 148bradleyi, Bicyrtes 178briillei, Bembex 129Btmbix 129brunncri, Trichosticlia 15burmeisteri, Bembidula 168Bicyrtes 168callista, Stictiella 41cameroni, Bembix 123Bembyx 123capensis, Bembex 143Bembix. 143capnoptera, Bembidula 177, 1 78BiciTtts - 177carbonaria, Moncdula 34Stictia. 34Carolina, Bembex... 28Monedula 28Stictia? 28
?hilensis, Monedula 13Therapon.. 13cinerea, Bembex.. 98Bembix 98comantis, Bembix 131comata, Bembix 124
Pageconnexa. Bembix 121conntxus, Bembex 121crcssonis, Bembex 103decorafa, Monedula 27Stictia 27dcnticornis, Monedula 65Rubrica .55denverensis, Monedula 39discisa, Bembidula 171Bicyrtes 171Monedula 166dissimilis, Steniolia 62divergens, Stictiella.. 46diversipennis, Bembex 138BeAbix 138dives, Monedula.. 28Stictia 28d'Orbignii, Monedula 13doriae, Bembex 91Bembix 91duplicate, Steniolia 51Editha J7adonis 18(uscipennis 19generic description of _ 17key to species of 17roagnifica 18pulcherrima 19elegans, Steniolia... 60emarginata, Monedula.. 41Stictiella 41equalis, Microbembex 164exigua, Monedula. 45Stictiella. 45explanation of plafes.-. 18ifa?riata, Bembex... 122Larra 10femoral a, Monedula 46Stictiella 46festiva, Bembix 118flavescens, Bembex.. 121Bembix 121flavolatera, Bembix 184fodiens, Bembidula 1(8Bicyrtes. -. 168forciiata. Bembex 116Bembix... 116formosa. Monedula. 36,48Stictiella 40formosana, Bembix... 128foxi, Bembix 119frioensis, Bembix 116fucosa, Bembix 72fumida, Bembix 106fuscipennis, Bembex 91Bembix 91Editha 19Monedula 19generic relationship, table of 5generosa, Bembix 153gracilens, Bembix 143gracilis, Bicyrtes 175gradilis, Bembix 122gravida, Monedula 53,54Rubrica 54guatemalensis, Steniolia 53Stictia.. 53
200 INDEXPageguttata, Mone<iula 15Trichost ictia 15hamaU, Bembix - 109handlirschi, Bembei 110heliantliopolis, Bembix ,... 137Ilemiilula - 3hon?, Bembex 25
-Monedula - - 25
-Stictia -. 25tiexaspila, Bembix 145hinei, Bembix --- 98hirsuta, Miorobembex ifiliQcognita, Bembix 154inermis, Monedula 39iatracta, Stictia 33inl'uinala, Bembex 132Bembix 132iaops, Bembex.. 133Bembix 133iosidiatrix, Bembidula 177Bicyrtes 177iusignLs, Bembex 103insularis, Bembex 95Bembix.. 95Monedula 95iiitetjra, -Bembex 103Bembix.. 103introduction 1kriiv.'hbaumeri, Bembex 128Bembix--- 128laeta, Bembix.. 151Larra fasciata 10latifasciata, Bembex 150Bembix 150latiirons, Bembix 121levis, Bembix 78liberieniLj, Bembex. 126lineata, Bembex 32Monedula 32Stictia.- 32littdralis, Bembex 133Bembix... 133liventis, Bembix 144longipennis, Bembix 149longirostris, Bembex 47Steniolia 49luupata, Bembix 73luzonensis, Bembix _. 141maeulata, Bembex 31Monedula 31Stictia 31madecassa. Bembex 139Bembix 139magdalena, Bembix 81magnifica, Editha 18Monedula. 17, 18mamiUata. Monedula 41,43medea, Monedula 25Stictia 25me.litorranea, Bembex 84Bembix 84megacera, Stictiella 44Megastizus 9megerlei, Bembex iioBembix 115melampous, Stictiella 43melanaspis, Bembix 136
Pagenielaneholica, Bembex 148Bembix 148melanopa, Bembex. 115Bembix 115melanosterna, Stictiella 40meliloti, Bembidula... 169mendica, Bembidula 175Bicyrtes.. 175merceti, Bembix 110meridionalis, Steniolia 51mesillensis, Bembidula. 178Bicyrtes 178luexicana, Monedula 29Stictia 29M icrobembex 155aurata. 160bldens... 157equalis... 164generic description 155hirsuta... _ 161key to species of 156mouodont a 161nasuta 163natalis 162sulphurea 158tarsalis. 161trlcosa 159mima, Bembex... 70Bembix 70minutula, Monedula 42miserabilis, Bembix 108mobLi, Bembex _ 83Bembix... 83Monedula 2,21andrei _ 36angulata 180antiopa 26arcuata _ 34carbonaria 34Carolina _ 28decorata 27denticornis 55denverensis 39discisa 165,171dives 28emargina ta 41eNigufl-. 45femorata 46formosa? 36,40fuscipenuis 19gravida 53,54heros 25inermis 39insularis 95lineata 32maculata 31magnifica? 17mamiUata 41,43medea 25mexicana 29minutula 42pantherina 30parata 169pictifrons 39plana _ 40proserpina. 35pulchella. 42
INDEX 201PageMonedula pulla 45punctata 27,30,32,34quadrifasciata 1 73scitula 43serrata 40signata 26sinpiilaris 2speciosa 40,42,43ppinifera 43strUiulans 18siirinamensis 55teuuicornis 41, 43
t uberculata 41tisitata -.- 40, 45ventralis 169villosa 43Tjvida 35vulpina 14monodonfa, Bembex 155, 101
^^ icrobembex 1 61miiltipicta, Bembex 133Bembix 133muscipapa, Bembex 119BembLx 119nasuta, Microbembex 163natalis, Mircobembex 162nigripe*;, Slenlolia 49nigrocornula, Bembix 106niponica. Bembex__ 120Bembix 120nubilipennis, Bembex 109,132Bembix 109nubilosa, Bembix.. 140nupera, Bembix 142obliqua, Steniolia 48obsoleta, Bembex 131Bembyx 131oceidentalis, Bembex 132Bembix 132oehracea, Bembex 118Bembix 118oculafa, Bembex.. 106Bembix 106odontophora, Bembidula. 170Bicyrte,s_ 170opinabilis, Bembex 79orlentalis, Bembex 101Bembix 101palmata, Bembex 147Bembix.. _ 147pantherina, Monedula 30Stictia.. 30parafa, Bembidula 169Bicyrtes 169Monedula 169persiinilis, Bembex _ 88Bembix 88pexa, Bicyrtes 179picticollis, Bembex 114Bembix 114pictifrons, Monedula.. 39Stictiella 39pirajiorae, Bembix 153plana, Monedula 40Stictiella 40primaaestate, Bembex 124Bembix 1 24
PageProserpina, Monedula 35Stictia... 3Bpruinosa, Bembex 130Bembix ]30pugillatrix, Bembex 87Bembix.. 87pulchella, Monedula 42Stictiella 42pulcherrima, Editha 19pulla, Monedula 4fStictiella 46pullata, Bicyrtes.- 176punctata, Bembej 33Bembyx _ ?2Monedula. 27,30,32,34Stictia 32quadrifasciata, Bembidula 173BicjTtes. 173Monedula.. 173quinqucmaculata, Bicyrtes ]7fquinquespinosa, Bembix. 8firaptor, Bembex J28Bembix 328recurva, Bembix 76refuscata, Bembix Mregia, Bembix 68regnata, Bembix illresidua, Bembix. 75rostrata, Apis 56, 1 14Bcmbe:; 114B?mbix 314Rubrica .13denticornis U^generic description 63gravida 54key to speeis of. 54surinamensis 5Jruficornis, Bembex.. firugosa, Bembix 103sayi, Bembex 105. 119Bembix lOfscitula, Monedula 43Stictiella 43scolopacea, Steniolia Mseculata, Bembix IMSelman... 20angustus 2iOgeneric description 20serrata, Monedula 40Stictiella 4Csignata, Monedula 26Stictie 26Vespa 26similnns, Bembex 125Bembix 32Jsingularis, Monedula 2sinuata, Bembex.. WiBembix 96sola, Bicyrtes 38Csombrana, Stictia. 30spatulata, Bembix 112speciosa, Monedula ?. 4ft 42, 43Stictiella. 42Sphecius 1?pinifera, Monedula 43Stictiella 43
202 INDEXPageSpinolae, Bembex 122,123Bembix 122, 123spinosa, Bembex 175Bembidula 175Bicyrtes 175spiritalis, Bembix 147stenebdoma, Bembix 83Steniolia ..- 47al bicantia 52
.'lissimilis 52duplicata. 51olegans. 50generic description 47guatemalensis. 53key to species of 47longirostris : 49meridionalis 51nigripes - 49obliqua 48scolopacea 51sulfurea 49tibialis 48stenebdoma, Bembix , 83stevensoni, Bembix 92Stictia 21andrei-. 36antiopa? 26arcuata 34carbonaria 34Carolina 2Schilensis 12decorata..- 27dives 28generic description 21guatemalensis 53heros 25infracta 33key to species of... 22lineata... 32maculata 31medea 25mexicana.. 29pantherina 30proserpina 35punctata 32signata 21,26sombrana 30trifasciata 24vivida.. 35Stictiella 36argentata 45bifurcata. 44bituberculata 41callista 41divergens. ^^, 46emarginata. 41exigua.. _ , 45feraorata 4oformosa 40generic description. _. 36key to species of 37megacera 44melampoiis 43melanostcrna 40pictifrons 39plana 40pulchella 42
PageStictiella pulla 45scitula 43serrata. 40spcciosa 42spinifera 43tenuicornis 43terlinguae 44tuberculata 41villosa. 43Stizini 7key to genera of 8Stizoides 10generic description iiStizus 9generic description.. 9occidentalis.. 9Stridulans, Monedula 18sulfurea, Bembex 158Steniolia 49sulphiirea, Bembex. 158Microbembex... 158suiinameusis, Apis 55Monedula 55Rubrica 55taiwana, Bembex 71Bembix 71tarsalis, Microbembex 161tenebrosa, Bembix 90tenuicornis, Monedula 41,43Stictiella 43tenuifasciata, Bembix 82terlinguae, Stictiella. 44texana, Bembex 136Bembix.. 136Therapon 12chilensis 13generic description 12tibialis, StenUoia.. 48torosa, Bembix.- 84trepanda, Bembex..... 101Bembix 101tribe, Bembicini 11Stizini 7Trichostictia 14brunneri 15generic description. 14guttata-- 15key to species of 14vulpina 15tricolorata, Bicyrtes 171tricosa, Microbembex.. 159tridens, Vespa 8tiidentifora, Bembex 147trifasciata, Stictia 24tristis, Bicyrtes 177troglodytes, Bembex 137Bembix 137tubercuiata, Monedula 41Stictiella 41U-scripta, Bembex 97Bembix 97usitata, Monedula 40,45variabilis, Bembex. 139Bembix 139variegata, Bembex 174Bembidula. 174Bicyrtes 174
INDEX 203Page
ventialis, BcmbldiJa.. 16^Bicyrtes- - ^69Monedula.-- ^69velox, Bembex - ^'^Bembix ^"^Vespa - ^^slgnata ^^tridfns *viduata, Bembidula ^^2
Pageviduata, Bicyrtes ^''2villosa, Monedula ^^Sticticlla *3vlvida, Monedula ^5Stictia 36vulpina, Monedula ^^Trichosticita ^^zoaata, Bembex ^^8Bembix- '28o