NOTES ON INSECTS OF THE ORDER STREPSIPTERA,WITH DESCRIPTIONS OF NEW SPECIES.By W. Dwight Pierce,Of the Bureau of Entomology , U. S. I')< [xirl. mint of Agriculture.INTRODUCTION.The appearance of a considerable number of publications on theorder Strepsiptera since the publication of the Monographic Revisionin Bulletin 66 of the U. S. National Museum, calls forth this summaryof the recent additions to our knowledge of the group. A number ofcorrections to the preceding paper must be noted and a considerablenumber of new or unpublished records are here to be added. Inview of the approaching publication of the Genera Insectorum onthis group a number of new species are here added. No attemptwill be made at this time to indicate generic c h a ages or arrangement, asthese matters will all receive due attention in the forthcoming paper.Special assistance in making the corrections to Bulletin 60 has beenreceived from Mr. Karl Ilofeneder of Innsbruck, Austria, and Prof.T. D. A. Cockerell of Boulder, Colorado. Material has been receivedfrom the former and also from II. L. Adams (Pennsylvania), W. L.McAtee (District of Columbia), J. D. Mitchell (Texas), V. I. Satro(Louisiana), Prof. L. Brunei- (Nebraska), Charles Robertson (Illinois),Prof. Henry Comstock (New York), Dr. E. D. Ball (Utah), WilliamCockle (British Columbia), Dr. E. Zavattari (Italy), E. E. Green(Ceylon), and Lt. Col. C. G. Nurse (England). Considerable materialhas also been found in the collections of the U. S. National Museum.Determinations of the host insects have very kindly been made byMessrs. Cockerell, Crawford, Heidemann, Robertson, Rohwer, andViereck. BIOLOGY.ACTUAL RELATIONSHIP OF PARASITE TO HOST.POLISTES METRICUS Say.Wheeler (1910&) records studies of 1,000 wasps collected at Cole-brook, Connecticut, in August. On these wasps the following datawere obtained, as tabulated:137 male wasps; 112 unparasitized, 25 parasitized.863 female wasps; 637 unparasitized, 226 parasitized.
1, 000 wasps; 749 unparasitized, 251 parasitized.13.7 per cent of the wasps were males, 86.3 per cent females.9.9 per cent of the parasitized wasps were males, 90.1 per cent females.81.7 per cent of the male wasps were unparasitized, 18.3 per cent parasitized.73.8 per cent of the female wasps were unparasitized, 26.2 per cent parasitized.74.9 per cent of all the wasps were unparasitized, 25.1 per cent parasitized.
Proceedings U. S. National Museum, Vol. 40?No. 1834. 487
488 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.40.The 251 parasitized wasps contained 443 male, 119 female = 562parasites.78.8 per cent of the parasites were males.21.2 per cent of the parasites were females.POLISTES VARIATUS Cresson.Between November 20 and 30, 1909, W. L. McAtee collected allthe wasps which came into his room on Church's Island, NorthCarolina. These wasps were 61 in number, and the data obtainedfrom them can be tabulated as follows:Gl female wasps; 29 unparasitized, 32 parasitized.0.0 per cent of the wasps were males, 100 per cent females.0.0 per cent of the parasitized wasps were males, 100 per cent females.47.5 per cent of the female wasps were unparasitized, 52.5 per cent parasitized.The following data give more specifically the extent of parasitismfound in these wasps, bringing out the percentage of the sexes of theparasites and their relations to each other:1 wasp with 2 male parasites = 2 parasites.5 wasps with 1 male parasite = 5 parasites.6 wasps with 7 male parasites.4 wasps with 3 female parasites=12 parasites.4 wasps with 2 female parasites= 8 parasites.6 wasps with 1 female parasite = 6 parasites.14 wasps with 26 female parasites.1 wasp with 3 male, 1 female (4) parasites= 3 male, 1 female= 4 parasites.1 wasp with 2 male, 2 female (4) parasites= 2 male, 2 female= 4 parasites.1 wasp with 1 male, 3 female (4) parasites= 1 male, 3 female= 4 parasites.3 wasps with 1 male, 2 female (3) parasites= 3 male, 6 female= 9 parasites.6 wasps with 1 male, 1 female (2) parasites= 6 male, 6 female=12 parasites.12 wasps with 15 male, 18 female=33 parasites.Summarizing this I find: 32 wasps with 22 male, 44 female = 66parasites.33.3 per cent of the parasites are males.66.7 per cent of the parasites are females.The location of the parasites may be summarized as follows:15 males protruding from the third segment, dorsal ->1 male protruding from the third segment, ventral/ '4 males protruding from the fourth segment, dorsal |3 males protruding from the fourth segment, ventral/ * '2 females protruding from the third segment, dorsal, total, 2.17 females protruding from the fourth segment, dorsal, total, 17.23 females protruding from the fifth segment, dorsal "i1 female protruding from the fifth segment ventral J '
no. 1834. NEW SPECIES OF STREPSIPTERA?PIERCE. 489The wasps were collected between November 20 and 30 and shippedto Dallas, Texas. Twenty-three wasps arrived dead, of which9 were unparasitized.7 contained one parasite.1 contained two parasites.4 contained three parasites.2 contained four parasites.Nine of the dead wasps contained empty male puparia, but noneof them contained living male puparia.The living wasps were fed sugared water. Of the 20 living unpara-sitized wasps only 6 lived until April 6, 1910, and the average lengthof life in captivity was 90 days. The parasitized wasps lived asfollows
:
1 wasp with 3 females, 1 male exuvium , lived 9 days.3 wasps with 1 female, 1 male exuvium each, averaged 9 days.1 wasp with 1 male exuvium , lived 11 days.3 wasps with 1 female, 1 male pupa each, averaged 17 days.4 wasps with 2 females each , averaged 26 days.3 wasps with 3 females each , averaged 39 days.2 wasps with 1 female each , averaged 62 days.1 wasp with 1 male pupa , lived 84 days.The maximum record was one wasp with 1 female, 125 days.EFFECTS OE PARASITISM ON HOST.In connection with the deformity of Leionotus annulatus (Bull. 66,p. 31) caused by parasitism it is interesting to note the occurrence ofsimilar phenomena in Polistes metricus without the apparent inter-vention of parasitism (Wheeler, 1910, p. 389).Wheeler (1910) finds very few external alterations in parasitizedPolistes metricus.On page 34 of Bulletin 66 several records of copulation of parasitizedhosts are presented. To these Robertson (1910) has added theobservation of copulation of two stylopized Andrena salictaria Rob-ertson, of a parasitized female Parandrcna andrenoides Cresson, andof a parasitized male Pseudopanurgus rudbechiae Roberston.The list of Andrenidse occasionally lacking the second transversecubital vein (Bull. 66, p. 35) should have been credited to Robertson,with but one exception. Robertson (1910) lists 18 species of Andrena,and 17 other species of Hymenoptera in winch this abnormality isknown to occur and states that he does not think the absence of thisvein indicates parasitism or is a result of it. The list was presentedin the Bulletin because it suggested some connection, and, in fact,the matter is still an open question.BIOLOGY OF THE PARASITE.TRIOZOCERA TEXANA Pierce.The occurrence of this species at light at Victoria, Texas, July 4,1908, is of interest.
490 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.40.MYRMECOLAX NIETNERI Westwood.The male referred to by Green (1902) as Elenchus tenuicornis (seeBull. 66, p. 57) has been kindly loaned to the writer and identifiedas above. The slide bears the following data: "Caught at light,March, 1902, Yatujantota, Ceylon."XENOS, species.The proportion of sexes and location of the parasites found in thePolistes variatus, collected by W. L. McAtee at Church's Island, NorthCarolina, are discussed on another page. One observation, however,is of considerable importance. Three wasps were found hibernatingwith male pupa?, which probably only died because the hosts died.It is not known to the writer that hibernating male pupa? have everbefore been found in Polistes.INTERNAL STRUCTURE.The admirable translation into German of Nassonov's works bySipiagin, together with the recent notes on the same by Hofeneder(1910c), have placed this valuable series of papers on the internalstructure of the Strepsiptera in a far more available form, especiallyfor American students.Correction : On page 60, Bulletin 66, next to last line, Aecilius wasincorrectly spelled Acilius.We find in Hofeneder' s (19106) description of the female Sticho-trema dallatorreanum, a very peculiar arrangement of genital canals,which are described as being in three rows of 12 to 14 canals each.Mr. Karl Strohm (1910) has pointed out that eyes of Xenos (rossii)vesparum are "ocellare Komplexaugen," meaning that the lenses arecontinuous, but are interrupted on the surface by partitions.DESCRIPTIONS OF STREPSIPTERA.Correction: On page 84, Bulletin 66, the sentence on the secondline reading "Alimentation probably osmotic," should be omitted.Superfamily MENGEOIDEA Pierce.Family MENGEIDtE Pierce.Genus TRIOZOCERA, emendation,Trioxocera Pierce, 1910 (typographical error).By an inadvertent following of an error in a preceding paper (Pierce,1908) the generic name Triozocera was spelled Trioxocera. Applicationhas been made to the International Rules Committee for permissionto amend the spelling to its proper form.The genus contains two species.KEY TO SPECIES?MALES.Oedeagus very slender, sinuate; medius with two superior branches. 1. mexicana Pierce.Oedeagus stouter, almost straight in basal two-thirds; medius with one superiorbranch 2. texana, new species.
no. 1834. NEW SPECIES OF STREPSIPTERA?PIERCE. 491TRIOZOCERA TEXANA, new species.Described from one specimen collected by Mr. J. D. Mitchell atlight, July 4, 1908, at Victoria, Texas.Male.?Length, 2.2 mm.; wing expanse, 5 mm.; brown; wingsclouded, veins dark and distinct. Head transverse; eyes prominent,normal; antennae (missing in type). Wings with seven primaryveins from base; the first two (costa +subcosta) strong, united,bracing the margin to beyond its middle; parallel to this and veryclose to it is the third (radius), which is much lighter, wavy, and notas long as the first two; about opposite the tips of the subcosta ashort wavy line appears, which is evidently an interrupted continua-tion of the radius; the fourth primary (medius) arises contiguous tothe radius but diverges rapidly ; between the bases of these two veinsis a short darkened area; the medius extends three-fourths of thedistance to the margin of the wing, at about the middle of the wing-there arises a strong branch detached from the main vein, whichextends to the margin of the wing; behind the medius and somewhatnearer its base arises another strong branch, also detached at itsbase and extending to the margin of the wing; the fifth primary(cubitus) diverges from medius at the same angle as medius divergesfrom radius, and extends as a strong vein to the outer margin; thesixth vein (first anal) is halfway between the cubitus and second analand very strong, but reaching only a little way beyond the middle ofthe wing; the seventh primary (second anal) is also strong and reachesthe outer margin; in the region of the third anal there is a very broadinfuscation which might possibly stand for that vein. Anterior andmedian coxae transverse; trochanters arising at the sides, stout,almost as long as the femora; posterior coxae prominent, conical;trochanters stout, clavate, one-half as long as femora; tibiae allslightly shorter than femora; tarsi five-jointed, first joint two-thirdsas long as the tibia, second almost half as long as first; third slightlyshorter; fourth one-half as long, broadened at apex and cupped forreception of fifth; fifth slender, two-thirds as long as third andarmed with two claws. Oedeagus long and slender, barely sinuate,acute at tip.Type.?Cat. No. 13713, U.S.N.M.Family MENGENILLID^ Hofeneder (1910a).Type genus.? Mengenilla Hofeneder (1910a).Antennae six-jointed, with the third, fourth, and fifth joints later-ally produced, and the sixth elongate; tarsi five-jointed.Genus MENGENILLA Hofeneder (1910?).Type of genus.? M. chobautii Hofeneder (1910a).Name based on the generic name Mengea.The habits of the genus are not known, and it is at present restrictedto North Africa.
492 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.40.MENGENILLA CHOBAUTII Hofeneder (1910a).Described from a male collected in Ain Sefra, Algeria, in 1896, inthe collection of Dr. A. Chobaut, in whose possession it remains astype.Male.?Length 4.5 mm., breadth between tips of expandedwings 6.5-7 mm. Color light brown, head darker; abdomen andlegs light golden, wings milky, with the strongest veins brownish.Head approximately twice as wide as long; dorsally emarginate atbase. Mandibles moderately long, acute. Maxillse two-jointed,slender. Antennse sensitive, pubescent, six-jointed, the first twojoints goblet-form; third, fourth, and fifth laterally produced,lamellate; sixth elongate, lamellate. Eyes ellipsoidal, prominent,with about fifty ommatidia. Prothorax short. Mesothorax longerbut shorter on the median line, and wider at the sides. Metathoraxelongate, with prsescutum more or less quadrate, causing emargina-tion of mesothorax; scuti about twice as long as wide; scutellumogival, elongate; postlumbium almost as long on middle line as it iswide at base; postscutellum broad, hardly more than twice as longas wide, rounded at apex, deeply emarginate at base of postlumbium.Elytra normal, pubescent. Wings normal. Anterior and middletrochanters elongate, posterior shorter; femora stout, cylindrical;tibise more slender; tarsi five-jointed, with two large claws. (Edea-gus at base very large, but rapidly diminishing to a point, gentlysinuate, but not angulate.Superfamily XENOIDEA Pierce.Family MYRMECOLACID^ Pierce.Genus MYRMECOLAX Westwood.MYRMECOLAX NIETNERI Westwood.Elcnchus tenuicornis Green (1902).There is practically no doubt in my mind but that Mr. Green'sPeradeniya (Ceylon) specimen is identical with the original Ram-boddo (Ceylon) species described by Westwood. As this rare insectbelongs to the collection of Mr. Green a full description will be pre-sented in the forthcoming generic revision, with a colored illustration.Family STYLOPID.E Kirby.Genus STYLOPS Kirby.The genus Stijlojjs still contains mainly species described fromfemales. In addition to the species described herewith the writerhas just received a number of other species which must be treatedlater. The host genus Andrena is an immense complex which hasbeen divided into many subgenera or species groups. It seems to
no. 1834. NEW SPECIES OF STREPSIPTERA?PIERCE. 493be a matter of considerable difficulty to secure a satisfactory arrange-ment of the species. The females of Stylops show also many smallgroups, and it is probable that when we know the males we will beable to more definitely arrange them. It is, however, of interest tonote the coordination of the parasite and host classifications. Pter-andrena asteris and P. solidaginis are grouped together, and so maytheir parasites Stylops asteridis and S. swenki be grouped. The same
*s true of Andrena solidula and A. vicina and their parasites S.solidulse and S. vicinse; of A. muUiplicata and A. nivalis and theirparasites S. multiplicatse and S. grsenicheri; of A. sparsipilosa andA. subcandida and their parasites S. sparsipilosse and S. subcandidse.In the following table the species known to the writer are arrangedaccording to their relative forms as nearly as is possible.The first column of figures represents the ratio of the breadth ofthe cephalothorax between the spiracles to the distance between themandibles; the second represents the ratio of the breadth of the headto the distance between the mandibles; the third the ratio of thebreadth between the spiracles to the breadth of the head; the fourththe ratio of the breadth between the spiracles to the distance fromspiracles to apex.
Stylops species. Andrena species. Cephalo-
494 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.40.mandibles 0.09 mm. Cephalothorax orange yellow, with disklighter, and with a dark brown band behind the spiracles; cephalo-thorax as long as broad, rather narrowly truncate at apex, truncationless than one-third the breadth at the spiracles. Lateral marginalmost straight from spiracles to apical truncation. Mandiblesobtusely rounded, with a small blunt tooth at apex. Spiraclesvisible at margin but not prominent. Cephalothorax very slightlyconstricted behind spiracles.Type.?Cat. No. 13689, U.S.N.M.STYLOPS ASTERIDIS, new species.Host.?Andrena asteris Robertson (det. Robertson), Carlinville,Illinois. Described from one female collected September 8 by CharlesRobertson.Female.?Length of cephalothorax, 0.76 mm., breadth at spiracles0.79 mm., breadth at base of head 0.54 mm., distance betweenmandibles 0.14 mm. Cephalothorax orange yellow, lighter on disk,with brown band at base; cephalothorax almost as long as broad,truncate at apex, truncation less than one-fourth the width at thespiracles. Lateral margin slightly convex from spiracles to trunca-tion. Mandibles obtuse, with a rather acute outwardly curvedtooth on the inner apical angle. Spiracles lateral, but not prominent.Cephalothorax broader behind spiracles and then very stronglyconstricted.Type.?Cat. No. 13690, U.S.N.M.STYLOPS CLAYTONLE Pierce.Stylops claytonise Pierce.Stylops imitatrix Pierce.Var. $. claytonise vierecki Pierce.Mr. Viereck considers that the host bees Andrena claytonise andA. imitatrix are synonymous and that he considers A. texana as avariety of claytonise. Following his lead the writer finds the para-sites of the first sufficiently close to be considered identical, but theparasite of texana is quite different, as is shown by the precedingtable. For this reason vierecki is now to be construed as a variety.STYLOPS HARTFORDENSIS Pierce.Mr. Viereck now considers Andrena liartfordensis a synonym ofA. nasoni, but the writer has concluded that the parasites are suffi-ciently different to retain their specific rank.STYLOPS MANDIBULARIS, new species.Host.?Andrena mandibv.laris Robertson (det. Robertson), Carlin-ville, Illinois. Described from one female collected April 10, byCharles Robertson.
no. 1834. NEW SPECIES OF STREPSIPTERA?PIERCE. 495Female.?Length of cephalothorax 0.88 mm., breadth at spiracles0.88 mm., breadth at base of head 0.52 mm., distance between mandi-bles 0.10 mm. Cephalothorax orange yellow, with disk lighter, andwith a wide sharply marked dark brown band at base, half on thethorax and half on the abdomen, and not reaching the sides of thethorax in front of the constriction. Cephalothorax as long as broad,truncate at apex, the truncation slightly more than one-fourth thebreadth at the spiracles. Lateral margin almost straight from spira-cles to apex, having a slight sinuation at base of head and also justbefore apex. Mandibles obtusely rounded, not toothed. Cephalo-thorax with sides parallel for a short distance behind the spiracles andthen strongly constricted. Spiracles slightly prominent on margin.Type.?Cut. No. 13691, U.S.N.M.STYLOPS NUDiE, new species.Host.?Andrena nuda Robertson (det. Robertson), Carlinville, Illi-nois. Described from one female collected by Charles Robertson.Female.?Length of cephalothorax 0.80 mm., breadth at spiracles0.81 mm., breadth at base of head 0.42 mm., distance between mandi-bles 0.10 mm. Cephalothorax orange yellow, with disk lighter, andwith a dark brown band at base, extending equally onto the abdo-men, irregular in outline and fading out on the edges. Cephalothoraxas long as broad, truncate at apex, the truncation about one-fourththe breadth at the spiracles. Lateral margin almost imperceptiblyconvex from spiracles to apical truncation. Mandibles small, apicallytoothed. Spiracles laterally prominent. Cephalothorax with sidesconvexly narrowed behind the spiracles to a strong constriction.Type.?Cat. No. 13692, U.S.N.M.STYLOPS PILIPEDIS, new species.Host.?Andrena pilipes Fabricius (det. Cockerell), Pekin, China.Described from one specimen collected by M. L. Robb, April 21, 1901.Female.?Length of cephalothorax 1.30 mm., breadth at spiracles1.26 mm., breadth at base of head 0.83 mm., distance between man-dibles 0.14 mm. Cephalothorax reddish orange, with disk lighter,and with a dark brown band at base, equally on thorax and abdo-men. Cephalothorax slightly longer than broad, rounding truncate atapex, the truncation less than one-fourth the breadth at the spiracles.Lateral margin strongly convex with several very slight indentations.Mandibles obtuse, not toothed. Spiracles touching lateral marginbut not prominent. Cephalothorax with sides almost parallel for ashort distance behind the spiracles and then very strongly constricted.Type.?Cat. No. 13693, U.S.N.M.This is the largest female Stylops yet known to the writer.
496 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.40.Family XENID^ Semenov.Genus HALICTOXENOS Pierce.HALICTOXENOS GR^ENICHERI Pierce.Correction: This specific name was wrongly spelled on page 150 ofBulletin 66, but correctly on pages 147 and 148, where it was alsodefined; hence the correct spelling holds and not grxincheri.HALICTOXENOS NYMPHiEARI, new species.Host.? Ohloralictus nymphsearum Robertson (det. Robertson), Car-linville, Illinois. Described from one female collected by CharlesRobertson.Female.?Length of cephalothorax 0.55 mm., breadth at spiracles0.52 mm., breadth at base of head 0.26 mm., distance between mandi-bles 0.07 mm. Cephalothorax yellow, with an orange brown band atbase, which has its posterior margin on the abdomen semicircular.Cephalothorax longer than broad, convexly truncate at apex, con-stricted at base of head, and also behind spiracles. Apical truncationless than one-third the breadth at the spiracles. Lateral marginobliquely convex from spiracles to base of head, thence convex andalmost parallel, rounding evenly into the convex apex. Spiracleslateral but not prominent. Mandibles small, obtuse, apicallyemarginate.Type.?Cat. No. 13694, U.S.N.M.HALICTOXENOS VIRIDUL.-E, new species.Host.?Augochlora viridula Smith (det. Robertson), Carlinville,Illinois. Described from one female collected by Charles Robertson.Female.?Length of cephalothorax 0.73 mm., breadth at spiracles0.85 mm., breadth at base of head 0.33 mm., distance between mandi-bles 0.08 mm. Cephalothorax light yellow, with a small semiellipticalbrown spot at the center of the base which extends on the base ofthe abdomen as a broad band from one side to the other. Cephalo-thorax considerably wider than long, truncate at apex, constrictedat base of head, strongly constricted behind spiracles. Lateralmargin strongly sinuate, with the depressions at the base of thehead and a little in front of the spiracles. Mandibles set obliquely,narrowed toward apex, which is squarely truncate but with a minutedenticle on the inner apical angle. Spiracles marginal, but notprominent. Abdomen with five genital tubes.Type.?Cat. No. 13695, U.S.N.M.
no. 1834. NEW SPECIES OF STREPSIPTERA?PIERCE. 497Genus CRAWFORDIA Pierce.CRAWFORDIA COCKERELLI Pierce.Host.?Panurginus ooylei Cockerell (auth. Cockerell).CRAWFORDIA LABROSI, new species.Host.?Pseudopanurgus labrosus Robertson, Carlinville, Illinois.Described from one female collected July 3 by Charles Robertson.Female.?Length of cephalothorax 0.47 mm., breadth at spiracles0.48 mm., breadth at base of head 0.45 mm., distance betweenmandibles 0.11 mm. Cephalothorax light yellow, with anterior halfof margin clouded with brown. Abdomen with a very broad darkbrown band bordering the cephalothorax. Cephalothorax as longas broad, subquadrangular, very broadly truncate at apex, which isvery little narrower than the width of the spiracles, strongly con-stricted behind spiracles. Lateral margins from spiracles almostparallel to a line through the bases of the mandibles, thence curvingand regularly convex with apex. Head with sides produced almostto spiracles, mouth almost apical, mandibles broad, blunt, andarmed on inner apical angle with a short curved tooth. Spiracleslateral, slightly prominent.Type?Cat. No. 13696, U.S.N.M.CRAWFORDIA RUDBECKXE, new species.Host.?Pseudopanurgus rudbeckix Robertson, Carlinville, Illinois.Described from one female collected August 29 by Charles Robertson.Female.?Length of cephalothorax 0.49 mm., breadth at spiracles0.51, breadth at base of head 0.49 mm., distance between mandibles0.10. Cephalothorax light yellow, with margins tinged with orange.Abdomen with a dark band bordering thorax. Cephalothoraxalmost as long as broad, broadest behind spiracles, thence almostevenly convex on sides and apex, but not subquaclrangular as in thepreceding species, strongly constricted behind spiracles. Spiracleslateral, but not prominent. Head as in the preceding species, broad,blunt, and armed on inner apical angle.Type.?Cat. No. 13697, U.S.N.M.Genus XENOS Rossi.Acroschismus Pierce.Schistosiphon Pierce.After receiving considerable new material the writer has come tothe conclusion that the wing venation can not be used to separateXenos and Acroschismus, and has therefore combined all three genera,which are parasites of Polistes.80796??Proc.N.M.vol.40?11 32
498 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.40.XENOS AURIFERI, new species.Host.?Polistes aurifer Saussure, Palo Alto, California. Describedfrom one female collected in February, 1892, by W. G. Johnson, andreceived from Prof. Henry Comstock.Female.?Length of cephalothorax 1.24 mm., breadth at spiraclesJ..41 mm., breadth at base of head 1.08 mm., distance between mandi-bles 0.29 mm. Cephalothorax dark brown on basal half, light yel-lowish brown on apical portion, the lighter shades run back on themargins in a narrow line almost to the spiracles, and also cause asemicircular emargination of the dark area on the middle of the disk.Cephalothorax broader than long, constricted at base, margin almostperfectly convex, with only two long shallow emarginations in frontof the mandibles; spiracles not reaching lateral margin; mandiblesquadrate, emarginate at apex.Type.?Cat. No. 13699, U.S.N.M.Genus BELONOGASTECHTHRUS, new genus..Name derived from Belonogaster (the host genus) + k%dpbc (enemy),meaning a parasite of the genus Belonogaster.Type of genus?B. zavattarii, new species.The genus is restricted to parasites of Belonogaster and is at presentconfined to Africa.Male unknown.Female.?Based on the figure by Zavattari (1909).Triungulinid.?Length 0.32 mm. Head large, dark, eye spotdark. Head not half as long as thorax. Coxge large, femora andtibice slender, tarsus a broad one-jointed transverse pulvillus, threetimes as broad as the tibiae. First eight abdominal segments normal,ninth elongate and emarginate for tenth which bears two longstylets, and the lateral lobes of the ninth bear each a more slenderstylet. BELONOGASTECHTHRUS ZAVATTARH, new species.Host.?Belonogaster elegans Gerstaecker; Butiti, Congo Free State,collected by the expedition of Due d'Abruzzi, and figured by E.Zavattari (1909). Triungulinids were kindly presented the writerby Doctor Zavattari.Female.?Cephalothorax about as long as broad; sides convex,margin of head sinuate, apex lobately rounded.Genus PSEUDOXENOS Saunders.Leionotoxcnos Pierce.On account of a decision by Mr. S. A. Rohwer, of the U. S. NationalMuseum, to consider Leionotus, Ancistrocerus, etc., as merely speciesgroups of Odynerus, as was done by Saussure, it is expedient for thepresent to combine the genus Leionotoxenos with Pseudoxenos, espe-
no. 1834. NEW SPECIES OF STREPSIPTERA?PIERCE. 499
cially as females are now at hand from several of the so-called generarecognized by Ashmead. These parasites are too closely allied towarrant even subgeneric separation.PSEUDOXENOS ARVENSIDIS, new species.Host.?Odynerus (Leionotus) arvensis Saussure, Carlinville, Illinois,Described from one female collected August 2 by Charles Robertson.Female.?Length of cephalothorax 1.16 mm., breadth 1.25 mm.,breadth of head 1.05 mm., distance between mandibles 0.23 mm.Cephalothorax orange brown, the margins very dark, and the anteriorhalf, except in front of opening of brood canal, dark; posterior halfof disk lighter. Cephalothorax broader than long, constricted atbase, broadest behind spiracles, thence more or less evenly convexon sides and apex, apex almost imperceptibly truncate; spiracleslateral and barely prominent: mandibles oblique, emarginate atapex with curved tooth on inner angle.Type?Cat. No. 13700, U.S.N.M.PSEUDOXENOS ERYNNIDIS, new species.Host.?Odynerus erynnys Lepeletier, Inverness, Florida. Describedfrom one female collected by Charles Robertson.Female.?Length of cephalothorax 1.32 mm., breadth 1.39 mm.,breadth of head 1.08 mm., distance between mandibles 0.26 mm.Cephalothorax orange brown, with apex yellow, behind which is aquadrate dark spot as wide as the opening of the brood canal, mar-ginal area from here back darker than disk, and margin from base ofhead very dark to base of cephalothorax. Cephalothorax broaderthan long, constricted at base, broadest immediately behind thespiracles, lateral margins between base of head and spiracles notvery oblique, but at base of head strongly angled and thence oblique,slightly sinuate; apex strongly convex; spiracles lateral, barelyprominent; mandibles distant, very oblique, deeply emarginate atapex, forming an acute tooth on inner angle, and a rounded lobe onouter angle.Type.?Cat. No. 13701, U.S.N.M.This species differs considerably in form from the others so fardescribed. PSEUDOXENOS FORAMINATI, new species.Host.?Odynerus foraminatus Saussure, Trenton, New Jersey.Described from one female collected July 5, 1907.Female.?Length of cephalothorax 1.02 mm., breadth 1.04 mm.,breadth of head 0.85 mm., distance between mandibles 0.17 mm.Cephalothorax dark brown, with part of head between mandiblesyellow, and a small area at base of disk lighter brown, margins verydark, but a lighter round area indicates location of spiracles. Cepha-lothorax almost as long as broad, convexly narrowed to base from
500 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.40.widest point, which is just behind the spiracles; spiracles barelyreaching lateral margin; sides convex, slightly wavy, apex narrowlytruncate ; mandibles oblique with a strong tooth on the- inner apicalangle.Type?Cat. No. 13702, U.S.N.M.PSEUDOXENOS FUNDATI, new species.Host.?Odynerus (Leionotus) fundatus Cresson, Carlinville, Illinois.Described from one female collected June 25, by Charles Robertson.Female.?Length of cephalothorax 0.99 mm., breadth 1.18 mm.,breadth of head 0.91 mm., distance between mandibles 0.19 mm.Cephalothorax light brown, with area in front of opening of broodcanal yellowish, and posterior fourth of disk lighter, margins especiallynear middle very dark, but with a lighter round area indicating thelocation of the spiracles. Cephalothorax convex from base, evenlyrounded at widest point behind spiracles; spiracles not attaininglateral margin; sides sinuately oblique to the narrowly rounded apex;mandibles oblique, with a sharp tooth on inner apical angle.Type.?Cat. No. 13703, U.S.N.M.PSEUDOXENOS HISTRIONIS, new species.Host.?Odynerus (Ancistrocerus) Tiistrio Lepeletier, Inverness,Florida. Described from one female collected March 20, by CharlesRobertson.Female.?Length of cephalothorax 0.86 mm., breadth 0.89 mm.,breadth of head 0.76 mm., distance between mandibles 0.17 mm.Cephalothorax light orange brown, with area in front of mouth yellow,a brown transverse band behind the opening of the brood canal,margins very dark, and remainder of disk lighter in color. Cepha-lothorax rather strongly constricted at base; broadest at spiracleswhich are laterally prominent; thence angulately convex, apexevenly convex; mandibles very oblique, apically emarginate andtoothed on inner angle.Type.?Cat. No. 13704, U.S.N.M.PSEUDOXENOS PEDESTRIDIS, new species.Host.?Odynerus (Leionotus) pedestris Saussure, Carlinville, Illinois.Described from one female collected July 6, by Charles Robertson.Female.?Length of cephalothorax 0.80 mm., breadth 0.80 mm.,breadth of head 0.67 mm., distance between mandibles 0.15 mm.Cephalothorax light orange brown, darkest on margins and acrossdisk behind mouth in basal third, apex yellow, remainder of diskorange colored. Cephalothorax not strongly constricted behind,more or less evenly convex from base to apex, apex narrowly truncate
;
spiracles just reaching lateral margin; mandibles oblique, toothed.Type?Cat. No. 13705, U.S.N.M.
no. 1834. NEW SPECIES OF STREPSIPTERA?PIERCE. 501PSEUDOXENOS ROBERTSONI, new species.Host.?Odynerus (Ancistrocerus) Jiistrionalis Robertson, Carlinville,Illinois. Described from one female collected August 27, by CharlesRobertson.Female.?Length of cephalothorax 1.04 mm., breadth 1.05 mm.,breadth of head 0.85 mm., distance between mandibles 0.20 mm.Cephalothorax light orange brown, with a very dark narrow margi-nal line and a dark line behind the opening of the brood canal, thecolor shading off from these dark lines to a very light disk, apexlight, area of spiracles light on the dark rim. Cephalothorax con-stricted at base convex at widest point behind spiracles, convexwith slight sinuations to apex which is evenly rounded; spiraclesbarely attaining the margin; mandibles with a very acute tooth onthe inner apical angle.Type?Cat. No. 13706, U.S.N.M.PSEUDOXENOS TIGRIDIS, new species.Host.?Odynerus (Ancistrocerus) tigris Saussure, Carlinville, Illinois.Described from one female collected by Charles Robertson on Sep-tember 23.Female.?Length of cephalothorax 0.76 mm., breadth 0.70 mm.,breadth of head 0.58 mm., distance between mandibles 0.16 mm.Cephalothorax light brown, darkest on margins, apex light, disklight orange brown. Cephalothorax oval, constricted at apex,broadest behind spiracles, sides convex from base to apex, veryeven, apex evenly convex; spiracles barely reaching margins, indi-cated by clear round area; mandibles small, oblique with a smalloutward curved tooth on inner apical angle.Type.?Cat. No. 13707, U.S.N.M.Genus TACHYTIXENOS, new genus.Type of genus.? T. indicus, new species.The only species of this genus is a parasite of Tachytes and the genusis at present confined to Asia.Male.?Head transverse, broadly produced over antennae. Man-dibles curved, stout, ensiform, apically acute, maxilla? two-jointed,the first joint stout subclavate, the second longer, tapering but notacute at apex. Eyes large, many-faceted. Antennas normallyxeniform, rami flattened. Prothorax transverse, slightly arched for-ward. Mesothorax shorter, emarginate by prsescutum; elytra slen-der, clavate. Metathoracic prsescutum keystone-shape; scuti broad,angularly produced over base of wings, narrowly separated by pedun-cle of scutellum; scutellum reaching prsescutum in a pedunculateprocess which widens to the main body in a sinuate curve, posteriorangles laterally produced, posterior edge bisinuate; postlumbium ofdifferent consistency from other parts, with both anterior and pos-
502 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.40.terior edges bisinuate; postscutellum broad, strongly convex. Wingvenation light. Legs moderate, posterior femora inflated behind.Oedeagus with almost no curve beneath at base and with the firstouter bend very near base, reflexed at the apical fourth at about aright angle, apex very acute.TACHYTIXENOS INDICUS, new species.Host.? Tachytes xenoferus Rohwer, Deesa, India. Described fromone male and one female collected by Lt. Col. C. G. Nurse in June,1898. Four wasps contained four empty puparia, one male pupa-rium, one female. The male puparium contained a fully developedmale.Male.?Length 2.5 mm. Dark brown, antennae and palpi a littlelighter, mandibles and oedeagus transparent yellow, postlumbiumlight brown, abdomen brown strongly tinged with yellow, elytra andlegs yellowish brown, wings pale with venation yellow.Female.?Length of cephalothorax 0.83 mm., breadth 0.97 mm.,breadth of head 0.82 mm., distance between mandibles 0.18 mm.Cephalothorax reddish brown, darkest on edges, orange colored ondisk; slightly constricted at base, widest behind spiracles whichbarely reach the edge, thence convex to apex ; apex broadly rounded,sinuate in front of mandibles; mandibles diagonal, quadrate truncate,with a small tooth on the inner apical angle.Type.?Cat. No. 13729, U.S.N.M.Genus EUPATHOCERA Pierce.EUPATHOCERA LUCTUOSAE, new species.Host.?Spliex (Psammophila) luctuosa Smith; Colorado Springs,Colorado. Described from one female from the collection of Univer-sity of Nebraska.Female.?Length of cephalothorax 0.98 mm., breadth at spiracles1.22 mm., breadth of head 0.95 mm., distance between mandibles0.20 mm. Cephalothorax brown, becoming lighter orange brown onposterior half of disk; widest behind spiracles, evenly convexthroughout; mandibles oblique, subquadrate, concavely emarginateat apex, with a small acute tooth near inner angle; spiracles notreaching margin.Type.?Cat. No. 13708, U.S.N.M.EUPATHOCERA PICTIPENNIDIS, new species.Host.?Spliex (Ammopliila) pictipennis Walsh, Carlinville, Illinois.Described from one female collected by Charles Robertson.Female.?Length of cephalothorax 0.92 mm., breadth at spiracles1.11 mm., breadth of head 0.88 mm., distance between mandibles0.19 mm. Cephalothorax dark reddish-brown, with a small lighterbasal area; widest behind the spiracles, constricted at base, evenly
no. 1834. NEW SPECIES OF STREPSIPTERA?PIERCE. 503convex throughout; spiracles laterally prominent; mandibles oblique,quadrate with a large sharp tooth on the inner apical angle.Type.?Cat. No. 13709, U.S.N.M.EUPATHOCERA VULGARIDIS, new species.Host.?Sphex (AmmopMla) vulgaris Cresson, Carlinville, Illinois.Described from one female collected by Charles Robertson.Female.?Length of cephalothorax 0.91 mm., breadth at spiracles0.99 mm., breadth of head 0.54 mm. Cephalothorax brown, withbasal area of disk lighter; widest just behind spiracles, which arelocated one-third of the distance from the base, sides behind spiraclesalmost parallel, but suddenly constricted at base, sides in front ofspiracles convex, apex truncate; spiracles laterally prominent; man-dibles oblique, emarginate, with an acute tooth on the inner apicalangle.Type.?Cat. No. 13710, U.S.N.M.Genus OPHTHALMOCHLUS Pierce.OPHTHALMOCHLUS AURIPEDIS, new species.Host.?Chlorion (Isodontia) auripes Fernald, Plummers Island,Maryland. Described from one female collected July 10, 1910, byJ. C. Crawford.Female.?Length 1.55 mm., breadth 1.80 mm., breadth of head 1.44mm., distance between mandibles 0.26 mm. Cephalothorax darkbrown, with posterior third of disk lighter; widest at spiracles;obliquely widening from base to spiracles, thence convexly obliquelynarrowing to apex, outline of head sinuate; spiracles not reachingmargins; mandibles oblique, quadrate, truncate, but with a longacute tooth projecting from the inner apical angle.Tpye.?Cat. No. 13711, U.S.N.M.Superfamily STICHOTREMATOIDEA Hofeneder, 1910&.This superfamily has been erected by Hofeneder because of theextremely peculiar arrangement of the female genital pores, whichare arranged in three transverse series of twelve to fourteen each.Family STICHOTREMATID,E Hofeneder, 1910 h.Type genus.?SticJiotrema Hofeneder (1910 b).Parasites of Locustidae.The male is unknown. The triungulinid is similar to those of thepreceding and following families.Genus STICHOTREMA Hofeneder (1910 6).Type of genus.?SticJiotrema dallatorreanum Hofeneder.Name derived from orexog (row) + rpfj/ia (aperture), referring tothe arrangement of the genital pores in rows.
504 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.40.STICHOTREMA DALLATORREANUM Hofeneder (1910 6).Host.?Sexava nubila Stal; Pack Island, Admiralty Islands, Sep-tember 10, 1909, Dr. E. Wolf, collector.Female.?Dorsal side outward, and not as in other Strepsiptera.Genital canals arranged in three parallel rows on the first or secondabdominal segment, with twelve to fourteen in each row. Cephalo-thorax with lateral projections behind the spiracles. Head with twosmall projections, probably rudimentary maxillae.Triungulinid.?Length 0.22 mm. Elongate, head obtusely rounded,with a deep narrow emargination at the center of the apex. Headand thorax together shorter than abdomen. Head over half as longas thorax. Eyes large crystalline. Legs with coxae, large, toothed;femora slender and apically mucronate, tibia longer and more slender,tarsus minute, hairlike. First eight abdominal segments transverse,short, ninth elongate, deeply emarginate, bearing the tenth segmentin the emargination, and on the apices of the lateral lobes armed withtwo pair of short hairs; tenth segment bearing two very long stylets,which are approximate at base.Above description is original from specimens of the triungulinidsgiven the writer by Mr. Hofeneder.Superfamily HALICTOPHAGOIDEA Pierce.Family DIOZOCERIDiE, new name.
Dioxoceridse, Pierce (1908).Genus DIOZOCERA, emendation.Dioxocera, Pierce (1908), (typographical error).The original spelling was due to an error in copying and is abso-lutely meaningless. Application has been made to the InternationalRules Committee for privilege to emend the spelling to its properform. Family HALICTOPHAGIDiE Pierce.Genus PENTOZOCERA, emendation.Pentoxocera Pierce (1908), (typographical error).The same remarks as above hold for this generic name.PENTOZOE, 1 new genus.Type ofgenus.?P. peradeniya, new species.Male.?Head excavated behind, produced over antennae. Eyesmany facetted. Antennae with flabelli short, flat and broad. Man-dibles short and acute, slightly passing each other; maxillae long,
no. 1834. NEW SPECIES OF STREPSIPTERA?PIERCE. 505second joint long. Prothorax and mesothorax arched far forward intohead, the former appearing only as a disk. Elytra moderately long.Praescutum elongate triangular, narrowly truncate by scutellum;scuti quadrate, diagonal, approximate at apex of praescutum, notreaching to lateral processes of scutellum; scutellum with mediananterior lobe separating scuti, behind which it is more or less quadratewith posterolateral prolongations; postlumbium of different consis-tency from the other parts, and almost as long as the scutellum; post-scutellum convex, broad and about as long as praescutum and scu-tellum together. Wings with seven primary veins, the costa andsubcosta strong, the area between these and medius darkened; avery wide detached vein arising just beyond the darkened area;medius extending to margin with long detached branch in front of it;the two anal veins straight. Legs normal; tarsi three-jointed.Ninth abdominal segment elongate; cedeagus slender, inflated atbasal third and strongly arched, thence very slender and at apicalfourth bent back in an acute angle.Female.?Cephalothorax quadrate, bi-emarginate at apex, withthe lobe thus formed very prominent; mandibles oblique and with along tooth; spiracles not laterally prominent; surface radiatelywrinkled from base; opening of brood canal transverse; abdomenwith a long, darkened area of the same shape as the cephalothorax.PENTOZOE PERADENIYA, new species.Host.? Thompsoniella arcuata Motschulsky, Peradeniya, Ceylon.Described from one male and one female collected by E. E. Green.Male.?Length 1.25 mm. Dark brown, eyes black, antennae andlegs lighter.Female.?Color light brown. Length of cephalothorax 0.26 mm.,breadth 0.22 mm.Type.?Cat. No. 13712, U.S.N.M.HOST LIST.The following additions to the host list of the Strepsiptera may bemade: ORTHOPTERA.Superfamily LOCUSTOIDEA.Family LOCUSTID^E.Sexava Stal.nubila Stal, Pack Island, Admiralty Islands, September 10 (E.Wolf), (female) Stichotrema dallatorreanum Hofeneder (Hofe-neder 19106).species, Wogeo, Schouten Island, Admiralty Islands, September13 (E. Wolf) (Hofeneder 19106).
i Name derived from jrii/re (five) + B?ec, (branches).
506 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.39.HOMOPTERA.Superfamily CICADOIDEA.Family TETIGONIID^.Tribe PHRYNOMORPHINI.TTiompsoniella Signoret.arcuata Motschulsky, Peradeniya, Ceylon, July (E. E. Green)(males, females), (Pentozoe peradeniya Pierce).Deltocephdlus Burmeister.labiatus Gillette, Colorado (male pupa), (received from E. D.Ball). HYMENOPTERA.Superfamily VESPOIDEA.Family EUMENID^.Odynerus Latreille (including Leionotus and Ancistrocerus)
.
anormis Say (Leionotus), Carlinville, Illinois, May 31, October29 (Robertson 1910).arvensis Saussure (Leionotus), Carlinville, Illinois, August 2(Robertson 1910), (female) (Pseudoxenos arvensidis Pierce).bifurcus Robertson (Leionotus), Inverness, Florida, March 3(Robertson 1910).capra Saussure (Ancistrocerus), Washington State (male exuvium)(U. S. National Museum collection).clypcatus Robertson (Ancistrocerus), Carlinville, Illinois, May 24,31 (Robertson 1910).erynnys Lepeletier, Inverness, Florida, February 10, March 10,25 (Robertson 1910), (female) (Pseudoxenos erynnidis Pierce).foraminatus Saussure (Leionotus).2. Carlinville, Illinois, August 13 (Robertson 1910).3. Trenton, New Jersey, July 5, 1907 (female), (Pseudoxenosforaminati Pierce), (U. S. National Museum collection).fundatiformis Robertson (Leionotus), Orlando, Florida, February17 (Robertson 1910).fundatus Cresson (Leionotus), Carlinville, Illinois, June, July(Robertson 1910), (female) (Pseudoxenos fundati Pierce).Jiistrio Lepeletier (Ancistrocerus) , Inverness, Florida, March 20,24 (Robertson 1910), (female) (Pseudoxenos Mstrionis Pierce)
.
Tiistrionalis Robertson (Ancistrocerus), Carlinville, Illinois, August5, 27 (Robertson 1910), (female) Pseudoxenos robertsoniPierce).
no. 1834. NEW SPECIES OF STREPSIPTERA?PIERCE. 507pedestris Saussure (Leionotus), Carlinville, Illinois, July 6 (Rob-ertson 1910), (female) (Pseudoxenos pedestridis Pierce).sexcingulati Ashmead (Ancistrocerus) , Florissant, Colorado, June26, 1907, S. A. Rohwer, on Salix brachycarpa (U. S. NationalMuseum collection).tigris Saussure (Ancistrocerus) , Carlinville, Illinois, September23 (Robertson 1910), (female) (Pseudoxenos tigridis Pierce).turpis Saussure (Leionotus), Inverness, Florida, March 19(Robertson 1910).Family VESPID^.Polistes Latreille.aurifer Saussure, Palo Alto, California, February, 1892 (W. G.Johnston), (female, male exuvium) (Xenos auriferi Pierce)(from Cornell University collection).hebrseus Fabricius, India (Maxwell-Lefroy and Howlett 1909).metricus Say.7. Cornell University (female), (Cornell University collec-tion).rubiginosus Lepeletier.10. Arlington, Texas, September 30 (exuvium).11. Tallulah, Louisiana, January 29 (exuvium) (V. I.Safro); February 16 (female), (V. I. Safro).variatus Cresson.3. Carlinville, Illinois, September 30 (Robertson 1910).4. Church's Island, Maryland, November 3 (W. L. McAtee),(males, females).Belonogaster Saussure.elegans Gerstaecker, Butiti, Congo Free State (female), (Za-vattari 1909) (Belonogasteclitlirus zavattarii Pierce).Superfamily SPHECOIDEA.Family SPHECID^.CJdorion Latreille.auripes Fernald (Isodontia) 1. Plummer's Island, Maryland,July 10, 1910, (J. C. Crawford) (female) (OpUlialmochlusauripedis Pierce).2. Harrisburg, Pennsylvania (H. L. Adams) (female).iclineumoneus Linnaeus.5. Carlinville, Illinois (Robertson, 1910).pollens Kohl, Ain Sefra, Algeria (Hofeneder 1910a).Sceliphron.Isetum F. Smith, Sandgate, Queensland, February 19, 1905.(Dr. J. Turner), (in U. S. National Museum collection).
508 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.40.Sphex Linnaeus.campestris Latreille, Germany (Scholz, 1909).luctuosa Smith. 1. Idaho, (female) (University of Nebraskacollection) ; 2. Colorado Springs, Colorado (male pupa, female)(Eupathocera luctuosse Pierce) (University of Nebraska col-lection) . Family LARRIMJ.Tachytes Panzer.xenoferus Rohwer. Deesa, India (males, females) (C. G. Nurse)(Tachytixenos indicus Pierce).Superfamily APOIDEA.Family ANDRENIDiE.Subfamily H^LICTIN^E.Augoclilora F. Smith.viridula F. Smith, Carlinville, Illinois, September 17 (Robertson1910), (female) (Halictoxenos viridulse Pierce).Halictus Latreille.nymplisearum Robertson, Carlinville, Illinois (Robertson 1910)(female), (Halictoxenos nymphseari Pierce).sparsus Robertson 2. Carlinville, Illinois, April, May, July, Sep-tember, October (Robertson, 1910).versatus Robertson 2. Carlinville, Illinois, April 11, November 3(Robertson, 1910).zephyrus Smith 2. Carlinville, Illinois, April, July (Robertson,1910). Subfamily ^NIDRENHSTJE.Andrena Fabricius.andrenoides Cresson, Carlinville, Illinois, April 1-29 (Robertson,1910), (female), (Stylops andrenoides Pierce).asteris Robertson, Carlinville, Illinois, September 8 (Robertson,1910) (female), (Stylops asteridis Pierce).crawfordi Viereck, Dallas, Texas (Viereck, 1909).cressoni Robertson, Falls Church, Virginia, June 14 on Ceanothus(female), (in U. S. National Museum collection).desponsa Smith (victima Smith), Nova Scotia (male, female)(Stylops childreni Gray) (Latreille, 1845, Smith, 1853, Cock-erell, 19066).didelta Viereck, Florissant, Colorado, July 17, 1907 (S. A. Roh-wer) (female), (in U. S. National Museum collection).erigenise Robertson, 1. Carlinville, Illinois, April 11 (Robertson,1891, 1910), (female). 2. Castle Rock, Pennsylvania, April 17,1908 (females), (in U. S. National Museum collection).Jiemileuca Viereck, Florissant, Colorado, June 19, 1907 (S. A.Rohwer), (females), (in U. S. National Museum collection).
no. 1834. NEW SPECIES OF STREPSIPTERA?PIERCE. 509liilaris Smith, Georgia (female), (in U. S. National Museum col-lection).Mppotes Robertson, 2. Carlinville, Illinois, April 10 (Robertson,1910).illinoiensis Robertson, 2. Carlinville, Illinois, April 17 (Robert-son, 1891, 1910).imitatrix Cresson race daytonise Robertson, Stylops daytonisePierce.var. texana Cresson Stylops daytonise vieredci Pierce,var. profunda Viereck.The above synonymy will change the location of the referencesin Bulletin 66.lewisii Cockerell, Florissant, Colorado, July 8, 1907 (S. A. Roh-wer), (females) (in U. S. National Museum collection).mandibulars Robertson, Carlinville, Illinois, March 21, 29,April 10 (Robertson, 1910), (female) (Stylops mandibularidisPierce)
.
nasoni Robertson (hartfordensis Cockerell)
.
Stylops hartfordensis is, however, not a synonym of Stylopsnasoni.nuda Robertson, Carlinville, Illinois, March 17 (Robertson, 1910),(female) , (Stylops nudse Pierce)
.
pilipes Fabricius, Pekin, China, April 21, 1901 (M. L. Robb)(female), (Stylops pilipedis Pierce) (in U. S. National Museumcollection)
.
polygoni Viereck (paratype), Florissant, Colorado, July, 1907(T. D. A. Cockerell) (females), (in U. S. National Museumcollection)ribesina Cockerell, Florissant, Colorado (Cockerell, 1906a).salictaria Robertson, Carlinville, Illinois, April 2-17 (Robert-son, 1910).sitilix Viereck, Dallas, Texas (Viereck, 1909).verecunda Cresson types (Robertson, 1910).Biareolina Dufour.neglecta Dufour (Perez, 1886; Pierce, 1909).Family PANURGID^.Panurginus Nylander.boylei Cockerell, Las Vegas, New Mexico, August 3 (W. Porter)(female), (Crawfordia cockerelli Pierce), (Pierce, 1909).Pseudopanurgus Cockerell.labrosiformis Robertson, Carlinville, Illinois, August 3 (Robert-son, 1910), (female).labrosus Robertson, Carlinville, Illinois, July 3 (Robertson, 1910),(female) (Crawfordia labrosi Pierce).
510 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.40.
rudheckise Robertson, Carlinville, Illinois, August 1, 29 (Robert-son, 1910), (female) (Crawfordia rudheckise, Pierce).solidaginis Robertson, Carlinville, Illinois, August 11, 12 (Rob-ertson, 1910), (female).BIBLIOGRAPHY.Brues, Charles Thomas (Reviewer)
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*1910. A monographic revision of the twisted winged insects comprising theorder Strepsiptera Kirby, by W. Dwight Pierce. Psyche, vol. 17,pp. 81-82.COCKERELL, THEODORE D. A.
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1906a. Bull. Amer. Mus. Nat. Hist., vol. 22, pp. 433-134.1906&. Psyche, vol. 13, p. 35.Glover, Townend?*1878. Illustrations of North American Entomology, pi. D, fig. 24 (Stylops chil-dreni, female); pi. 30, fig. 15 (Stylops sp., male); pi. 44, fig. 15 (Stylopschildreni, male).HOFENEDER, KARL?*1910a. Mengenilla n. g. Chobautii n. sp., eine neue Strepsiptere aus Nordafrika.Berichte d. naturw.-med. Vereins, vol. 31, pp. 33-57, pi., text fig.*1910&. Stichotrema n. g. Dalla-Torreanum n. ep., eine in einer Orthopterelebende Strepsiptere. Zool. Anz., vol. 36, pp. 47^9, figs. 1, 2, August.*1910c. Untersuchungen zur Naturgeschichte der Strepsipteren, von Prof. Dr.Nikolai Victorovich Nassonov, aus dem Russischen ubersetzt vonAlexander v. Sipiagin mit Anmerkungen undeinem kritischen Anhangfiber einige Ansichten Meinerts betreffs der Anatomie des Weibchens.Berichte naturwissenschaftlich-medizinischen Vereines in Innsbruck,vol. 33, pp. i-viii, 1-206, pis. 6.Latreille, Pierre Andre?1820. De quelque appendices du thorax de divers insectes (Strepsiptera, Dip-tera). Ann. gener des sci. phys. Brux., vol. 6, pp. 332-349, also inMem. du Mus. d'Hist. Nat., 1821, vol. 7, pp. 1-21.Maxwell-Lefroy, H., and F. M. Howlett?*1909. A Manual of the Insects of the Plains (Tropical India) pp. 395-6.MOTSCHULSKY, VlCTOR DE
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*1853. Etudes Entomologiques. 1852. Helsingfors. p. 19. Motschulsky de-scribes Liposcelis brunneus and places it and his genus Paradoxenus toform a group Paradoxides near Stylops. It is sufficient to say that hedid not have Strepsiptera before him.Nassonov, Nikolai Viktorovich?1910. See Hofeneder 1910c.Nurse, Lt. Col. C. G.
?
1909. Journ. Bombay Nat. Hist. Soc, pp. 510-517. Records parasitization ofTachytes spp. from India. This material is herewith studied.Robertson, Charles?*1910. Hosts of Strepsiptera. Can. Ent., vol. 42, pp. 323-330.Scholz, Eduard J. R.*1909. Die Lebensgewohnheiten schlesischen Grabwespen. I. Zeitschr. f. wissen-schaftl. Insektenbiologie, vol. 5, pp. 22, 23.Sipiagin, Alexander v.?1910. See Hofeneder 1910c.
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