SOME SPIDERS AND OTHER ARACHNIDA FROM SOUTH-ERN ARIZONA.
By Nathan Banks,Custodian, Section of Araehnida.
Hardly anything is known regarding the spiders of Arizona.Count Keyserling described a few species from the Marx collection,and in recent years Simon has described several curious forms col-lected, doubtless, by Morrison. Dr. McCook, in his AmericanSpiders, records a few species of Epeiridte from this region. Arizonais especially interesting for two reasons: first, because of its prox-imity to Mexico, and second, because the isolated mountainous regionsgive rise to many local faunas.In the collection made by Mr. E. A. Schwarz there are 55 species?43 spiders and 12 other arachnids. Eight species are described asnew. Five species, namely, Sparassus minax, Misumena pallida, Mis-umena fidelis, Oxyopeidon molestmn, and Ammofreeha penlmHlana,have not previously been recorded north of the Mexican boundary.'About twenty of the spiders are of rather general distribution in theUnited States, at least in the southern portions. Most of the othersare more or less restricted in their range, and about thirteen of thespiders are known only from Arizona. Only one species, PhUodro-nius aureolm, also occurs in Europe.ARANEIDA.Family THERAPHOSID.E.EURYPELMA HENTZI (Girardt.Male and female from Oracle, in July. Young, apparently of thisspecies, from Santa Rita Mountains, May.Family SCYTODID^.PLECTREURYS TRISTIS Simon.One from Catalina Springs, April. A rather rare spider.Proceedings U. S. National Museum, Vol. XXIII?No 1223 581
582 PROCEEDINGS OF THE NATIONAL MUSEUM.Family PHOLCID.E.PHYSOCYLUS GIBBOSUS (Taczanowski).An immature specimen, probably of this species, from CatalinaSprings, April. Family DRASSID^E.PROSTHESIMA ATRA (Hentz).One male from Catalina Springs, April.PROSTHESIMA ARIZONENSIS, new species.Length of female, 7 mm.Cephalothorax yellowish brown, black aromid eyes; mandiblesrather darker than cephalothorax; legs yellowish brown, rather darkeron tips; sternum more reddish brown, black on margin; abdomen dullblack above and below, spinnerets pale yellowish. Cephalothoraxconsiderably narrowed in front, quite flat, dorsal groove distinct.Posterior eye-row slightly procurved; posterior median eyes oval,less than their diameter apart, about as close to the equal posteriorside eves; anterior eye-row nearly straight; anterior median eyes fullydiameter apart, nearly touching the equal anterior side eyes, about a.large as posterior median eyes; quadrangle of median eyes muchhigher than broad, and as broad in front as behind. Legs of moderatelength tibia I with one pair of spines at tip beneath, metatarsus 1with three pairs below, one of which is at the tip; metatarsus notscopulate; many spines on hind legs. Sternum nearly oval, broadestbehind coxfe 11. Abdomen depressed, truncate at base, nearly oneand three-fourths as long as broad, broadest behind middle; epigynumshows a narrow transverse cavity open behind into a short, wideningcavity.One female from Catalina Springs, April.Type.?C^t. No. 5424, U.S.N.M.PROSTHESIMA SCHWARZI, new species.Length of female, 12 mm.Cephalothorax yellowish brown, black around eyes; mandiblesyellow-brown; sternum more red-brown; legs yellow-brown, anteriormetatarsi and tarsi much darker; abdomen pale yellowish gray aboveand beneath, black hairs at base, spinnerets more yellow. Cephalo-thorax rather broad in front. Posterior eye-row plainly procurved,not broader than anterior eye-row, eyes widely separate; the posteriormedian eyes oval, more than their diameter apart, more than twicetheir diameter from the smaller posterior side eyes; anterior eye-rowlittle procurved, anterior median eyes larger than posterior medianeves, about diameter apart, much closer to the nearly equal anterior
NO. 1223. SOME SPIDERS FROM A RIZONA?BANKS. 583
side eyes, quadrangle of median eyes about one and one-half as highas broad. Anterior legs quite stout, hind pairs much more slender;metatarsi and tarsi T and II with fscopula.s; tibia I with one spinebelow near base, one near middle, and a pair at tip; metatarsus I withone pair near base. Abdomen rather thick, truncate at base, morethan one and one-half times as long as broad; epigynum shows a large,oblong corneus area, in the hind part of which is an elliptical cavity,nearly filled by a plate from in front.One female, Catalina Springs, April.Type.?Q^i. No. 5425, U.S.N.M.Family CLUBIONID^.CHEMMIS UNICOLOR, new species.Length of female, 14 mm.Cephalothorax reddish brown, rather darker in front; mandiblesdark red-brown; sternum yellow-brown, dark on sides; legs yellowishbrown on base, darker and more red-brown beyond; al^domen palebrown above and below, darkest near tip. Cephalothorax rather broadin front, moderately elevated; mandibles large and stout. Posterioreye-row longer than anterior eye-row, slightly procurved; posteriormedian eyes round, a little more than diameter apart, nearly twicediameter from slightly smaller posterior side eyes; anterior eye-rownearly straight, anterior median eyes hardly as large as posteriormedian ej^es, scarcely diameter apart, about diameter from scarcelylarger anterior side eyes; quadrangle of median eyes rather higherthan broad, broader behind than in front. Three teeth on hind marginof fang-groove. Legs rather stout, but long, IV a little longer than 1,and more slender. Five pairs of spines under tibia I, metatarsus Iwith 3 pairs, in each case the apical pair is short. All tarsi, metatarsiI and II, and apex of III and IV, ai'e scopulate. Two spines aboveon tibia III. Lip half the length of maxillte, hollow truncate at tip.In front of spinnerets is a curious truncate lip.One female from Santa Kita Mountains, June.Tyi)e.?C?ii. No. 5426, U.S.N.M.Differs from the one species of the genus in having anterior medianeyes not larger than anterior side e3'es, but otherwise agrees ver}' wellin structure. TRACHELAS TRANQUILLA (Hentz).Several specimens from Catalina Springs, April, May; and SantaRita Mountains, May, June.ANYPH.?NA, species.Immature specimens from Santa Rita Mountains, June.
584 PROCEEDINGS OF THE NATIONAL MVSEVM. vol.xxii.THARGALIA LUCTUOSA, new species.Length of female, 7.8 mm,; cephalothorax, 3.5 mm.; tibia + patellaI, 3.-1: mm.Cephalothorax pale reddish l)rown, rather darker on the sides,clothed in the middle with 3^ellowish-white hairs; abdomen blackabove, with white marks?a somewhat triangular mark in front, con-nected behind to a broad band; behind this are two white spots, andbeyond at near middle of length are two transverse white patches;behind these are two small white dots, and near tip a white band,extreme tip black; the sides show two broad oblique bars, both nearbase; venter brown; sternum pale red-brown; legs pale reddish brown,yellowish on anterior pairs beyond patellpe, femur III pale at base,brown beyond and on part of patella and tibia, and most of metatarsus;femur IV pale at l)ase, dark brown beyond, patella and tibia black,the latter with prominent basal and apical white bands, metatarsusblack. Cephalothorax rather slender, narrow in front; eyes closetogether, anterior row straight, subequal, and at equal distances, pos-terior row procurved, posterior median eyes farther from each otherthan from the equal posterior side eyes; sternum truncate in front,rounded on sides, pointed behind. Two pairs of spines under tibia 1,two pairs under metatarsus I, three pairs under tibia IV, and oneabove near tip. Entire dorsum of abdomen rather tough, but no dis-tinct shield. The epigynum shows two approximated elliptical cav-ities; in the anterior part of each is a deeper cavity.One female from Santa Rita Mountains, May.Tyjx^.?Q^t. No. 5427, U.S.N.M.Family THERIDIID.E.LATHRODECTUS MACTANS (Fabricius).One female from Oracle, July.LITHYPHANTES, species.One female from Oracle, Juh% near to L. fulvw^, but apparentlydistinct; at least a color variety.DIPCENA PARVULA, new species.Length of female, 2.2 nnn.Cephalothorax, legs, mandibles, and sternum dark 3^ellowish brown,black in e\"e region; abdomen black. Cephalothorax high, projectingin front, clypeus concave. Posterior eye row nearly straight; poste-rior median eyes less than diameter apart, more than diameter fromslightly smaller posterior side eyes; anterior eye row (seen from above)recurved; the anterior side eyes touching posterior side eyes, and of
SOME SPIDERS FROM ARIZONA?BANKS. 585equal size; the anterior median eyes larger than other eyes, andplaced on the front of the head at highest point, about their diameterapart, and much closer to the smaller anterior side eyes; quadrangleof median eyes much broader in front than behind, and a little hioherthan broad behind. Palpi heavy. Legs rather short and stout.Abdomen large, from abov^ e as broad in front as behind, and equallyrounded each end, about once and one-fourth as long as broad, quitehigh, and projecting behind over the spinnerets. The region ofepigynum is rather prominent, and from behind shows a simpleopening.One specimen from Catalina Springs, April.Type.?Oiit. No. 5428, U.S.N.M.Family lEPEIRID^.EPEIRA GEMMA McCook.Santa Rita Mountains, May (voung); Fort (xrant, July [Hubbard].EPEIRA PROMPTA Hentz.Catalina Springs, May, April; Oracle, July. They are of the formdescribed l)y McCook as E. coitcJJm.EPEIRA LABYRINTHEA Hentz.Catalina Springs, Maj".EPEIRA ARIZONENSIS Banks.A male and young specimens from Madera Canyon, Santa RitaMountains, June. LARINIA DIRECTA (Hentz).Catalina Springs, April.TETRAGNATHA GRALLATOR Hentz.A young male from Santa Rita Mountains.Family SPARASSID^.SPARASSUS MINAX Cambridge.A male from Santa Rita Mountains, May, appears to belong to thisMexican species, previously unknown in our country.OLIOS FASCICULATUS Simon.Sadala slmoni Cambridge.Olios giganteus Keyserling.Several specimens from Catalina Springs, May (young); MaderaCanyon, Santa Rita Mountains, June; and Oracle, July. I suspect
586 PROCEEDINGS OF THE NATIONAL MUSEUM v<u..xxiii.that this is the same as the Ocypete testacea of Koch/ in which caseKoch's name will have priority,SELENOPS, species.A young specimen from Madera Canyon. Santa Rita Mountains,possibly belonging to S. tugrouKiculatuH Keyserling.Family THOMISID^.MISUMENA PALLIDA Cambridge.A few females from Santa Rita Mountains, June, and Oracle, July,pro ba 1)1}' belong to this species.MISUMENA FIDELIS Banks.A female from Catalina Springs, April, appears to belong here.CORIARACHNE VERSICOLOR Keyserling.Females from Catalina Springs, May, and Madera Canyon, SantaRita Mountains, June.PHILODROMUS MARGINELLUS, new species.Length of female, 15 mm.Cephalothorax pale dirty whitish, a purer white V-mark and amedian anterior line, sides evenly and quite broadl}^ margined w ithbrown. Abdomen dirt}^ white above, brown on the anterior sides,and on the posterior sides darker brown, sharply marked otf from thepale above; on posterior median portion of dorsum is a double seriesof dark marks, converging toward tip. Legs pale, darker at tips offemora and on bases of anterior tibiw, elsewhere with a few scatteredbrown dots. Sternum and venter white, the latter margined eachside with brown. Cephalothorax about as broad as long, a littleshorter than femur I; posterior median eyes slightly larger and fartherapart than anterior median eyes. Abdomen large, pointed behind;the epigynum shows a subtriangular cavity, traversed by a medianseptum, broader behind than in front.A female, Santa Rita Mountains, June.Tyjje.?Cat. No. 5429, U.S.N.M.PHILODROMUS AUREOLUS Walckenaer.One specimen from Oracle, July.PHILODROMUS, species.One female from Catalina Springs, May, of uncertain position,quite large, pale, and dorsum marked with brown.iDie Arach., IV, 1838, p. 81, fig. 303.
No.i2L'3. iSOME SPIDERS FROM ARIZONA?BANKS. 587TMARUS CAUDATUS (Hentz).Young- .speciinen.s from Santa Rita Mountains and Catalina Springs.Family LYCOSID^.LYCOSA SCALARIS (Thorell).One miile from Santa Rita Mountains, Ma}'.LYCOSA SCUTULATA Hentz.A young specimen from Santji Rita Mountains.Family OXYOPID.E.PEUCETIA VIRIDANS (Hentz).Several specimens from Catalina Springs, Ma}^; Madera Canyon,Santa Rita Mountains. June.OXYOPEIDON MOLESTUM Cambridge.Several immature specimens from Catalina Springs, Santa RitaMountains, and Oracle appear to agree with this species.Family ATTID^E.PHIDIPPUS MEXICANUS Peckham.A few specimens from Santa Rita Mountains, June (young); andOracle, Julv. PHIDIPPUS, species.An immature specimen from the Santa Rita Mountains, in June.The abdomen is dark, with a yellowish band at base, near middle atransverse row of four white dots, toward tip an oblong white markeach side, and a white dot each side just above the spinnerets.DENDRYPHANTES RETARIUS (Hentz).Specimens from Madera Canyon, Santa Rita Mountains, all in June.DENDRYPHANTES NUBILUS (Hentz).A female from Santa Rita Mountains, June.DENDRYPHANTES, species.An immature male of an apparently undescribed species from SantaRita Mountains, Ms^y. HABROCESTUM, species.A female from Oracle, July. Cephalothorox dark; anterior legsdark, posterior pairs paler, not plainly marked; venter pale; abdomen
588 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiii.above dark, with white marks on the posterior sides in the usual man-ner. Can not be named without male.HABROCESTUM, species.One female from Santa Rita Mountains, June. Smaller than thepreceding; cephalothorax brown; legs pale, with small brown blotches;venter pale; dorsum pale, with a large black mark containing a centralpale spot. Ahnost certainly new, but ]>etter not described from thissex. ASTIA MOROSA Peckham.A female from Santa Rita Mountains, May.MARPTUSA CALIFORNICA Peckham.One from Catalina Springs, April.CYRBA TiENIOLA (Hentz).Two specimens from Catalina Springs, May, and Santa Rita Moun-tains, June. SYNAGELES SCORPIONA (Hentz).One specimen from Catalina Springs.PHALANGIDA.LIOBUNUM TOWNSENDI Weed.One specimen from Madera Canyon, Santa Rita Mountains, May.TRACHYRHINUS FAVOSUS (Wood).One specimen from Madera Canyon, Santa Rita Mountains, Wdy.SCORPIONIDA.VEJOVIS SPINIGERUS Wood.Three specimens from Madera Canyon, Santa Rita Mountains, June.CENTRURUS CAROLINIANUS (Beauvois).Two specimens from Oracle, July, seem to belong to this species,but are very pale in color.PSEUDOSCORPIONIDA.IDEOBISUM THREVENETI (Simon).One specimen from Madera Canyon, Santa Rita Mountains, May.CHELIFER HUBBARDI, new species.Length, 8 mm.Dark red-brown, palpi brighter red-brown, legs rather yellow-brown. Cephalothorax of usual shape, surface tinel}' granulate, and
SOME SPIDERS FROM ARIZONA?BANKS. 589with many large, sharp, rough tubercles;, a distinct eye-spot each side.Palpi long, slender; femur much longer than the cephalothorax plusmandibles, gradually thickened to tip, but nearly straight on each side;tibia plainly shorter than femur, but rather longer than the cephalo-thorax, at tip rather larger than tip of fcnnur, inner margin straight,outer slightlj" convex; claw about as long as femur; hand nearly twiceas wide as tibia, broadl}^ rounded at base, tapering each side to fingers,which are about equal in length to the hand, and but slighth" curved.Hairs on palpi are simple, but some on basal joints are thick and nearlyclavate. Abdominal scutse each with a roughened ridge, most promi-nent in the males.Several specimens from Catalina Springs, Madera Canyon, andOracle; in decajdng Cereus and Dasylirion.Type.?C^t. No. 5430, U.S.N.M.CHELANOPS ARIZONENSIS, new species.Length, 3 mm.Cephalothorax very dark brown, abdominal scutffi brown, palpi clearred-brown, legs paler. Cephalothorax nearly smooth, with distinctfurrows, and two faint eye-spots. Palpi large; trochanters globosebehind; femur shorter than width of cephalothorax in middle, abouttwo and one-half times as long as broad at base, slightly concave oninner margin near tip; tibia fully as long as femur, evenl}" convex onouter edge, strongl}?^ convex on middle of inner margin, in middlel)roader than femur; hand subtruncate at base, rounded each side andtapering slightly to the fingers, about one-fourth longer than broad;fingers as long as hand, stout, and slightly curved. Femur and tibiawith short stout hairs, those on inner margin nearly clavate.A few specimens from Catalina Springs, Santa Rita Mountains, andOracle; in decaying Oeretis a,nd Dmylirion. In company with Chelif'irhuhhirdl.Type.?Q2X. No. .5431, U.S.N.M.SOLPUGIDA.EREMOBATES CINEREA (Putnam).Two males: Oracle, July; Madera Canyon, Santa Rita Mountains,June. Both attracted to lights.AMMOTRECHA PENINSULANA (Banks).Several specimens from Madera Can3^on, Santa Rita Mountains,April. Not previously known north of Mexico.
590 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxih.ACARINA.ARGAS SANCHEZI Duges.Catalina Springs, April; also Deming, New Mexico, July. Knownas the ''adobe tick." IXODES, species.Catalina Springs, April. On house bat; not a.dult, and thereforecan not be identified with certaint3^EXPLANATION OF PLATE XXII.Fig. L Thargalia luctnosa, spider and vulva.2. Vhelanopn arizonenitis, palpus.3. Prosthesima arizonensis, vulva.4. Dipcena parvula, spider and vulva.5. Epeira arizonensis, male palpus.6. Plectreurys Iristis, eyes.7. Prostliesima schwarzi, vulva.8. Sparassus minax, male palpus.9. Chelifer hubbardi, palpus.10. Philodromus margindlus, spider and vulva.11. Chemmis unicolor, vulva.
U. S. NATIONA). MUSEUM PROCEEDINGS, VOL. XXIII PL. XXII
Some Arizona Spiders.For explanation of plate see page 590.