A revision of the spider genus Selenops Latreille, 1819 (Arachnida, Araneae, Selenopidae) in North America, Central America and the Caribbean Author Crews, Sarah C. text ZooKeys 2011 105 1 182 http://dx.doi.org/10.3897/zookeys.105.724 journal article http://dx.doi.org/10.3897/zookeys.105.724 1313-2970-105-1 Selenops actophilus Chamberlin, 1924 Figs 53-56198Map 7 Selenops actophilus Chamberlin 1924 : 655, Figs 95-98 (♂, ♀, examined). Selenops actophilus : Muma 1953 : 14, Figs 19-22 (♂, ♀). Type material. Holotype male: San Carlos Bay, Sonora, Mexico , 7.VII.1921, J.C. Chamberlin (CAS1435, examined). Other material examined. MEXICO : Baja California: Meling Ranch, 26.V.1981, V. Roth, 1♂ (AMNH). Chihuahua: 19 mi SW Tejaban along Urique River, 19.V.1991, R.E. Stecker 1♂ (CAS); 10 mi SW Tejaban along Urique River, 11-15.V.1991, R.E. Stecker, 2♀, 1♂, 3 imm. (CAS); 25 mi SW Tejaban along Urique River, 20-23.V.1991, R.E. Stecker, 1♂ (CAS). Sinaloa: 40 miles south of Culiacan , 6.VIII.1956, V. Roth, W.J. Gertsch, 1♀ (AMNH). Sonora: Guaymas, under a rock on hill above Jamison's Dock, 3.IV.1964, W. Shear, 1♀ (AMNH); Guaymas, 24.VI.1943, F.J. Pough, 1♀ (AMNH); Guaymas, 14.IV.1921, J. C. Chamberlin, 1♀ (AMNH); Guaymas, 9.IV.1921, E.P. Van Duzee, 1♀ (AMNH); San Pedro Bay, 7.VII. 1921, J.C. Chamberlin (CAS1436); 15 miles west of Yecora, 4000', 7.VIII.1986, V. Roth, 1♀ (CAS); Navajoa, 1.VIII.1952, P., C. Vaurie, 1♂ (AMNH); Alamos, on building, 27.IV.1986, V. Roth, several (AMNH); Sonoran Highway on way to Yecora, 28°34'08.7"N , 109°39'28.1"W , 1512', 14.VII.2007, M. VanDam, 1♀ (EME sel_851). UNITED STATES: Arizona: Cochise Co., Chiricahua Mtns.,1.VI.1952, M. Cazier, W.J. Gertsch, R. Schrammel, 1♀ (AMNH); Cochise Co., 4 mi west of Portal, South fork of Cave Creek, 10.VI.1958, W.J, J.W. Gertsch, 1♀ (AMNH); Cochise Co., Chiricahua Mtns, SWRS, 5400', 5.VI.1965, D. Ligon, 1♀ (AMNH); Cochise Co., Chiricahua Mountains, South Fork of Cave Creek, 31.51 N, 109.12 W, 24.V.1963, W.J. Gertsch, W. Ivie, 1♂, 1♀ (AMNH); Mohave Co., South of Wickieup, 2.7 miles from Hwy 93, Burro Creek Crossing Road, 34°36'449"N, 113°28'921"W, S. Crews, L. Bell, 1♂ (CAS sel_001); Pima Co., Organ Pipe Cactus National Monument, 10.VI.1952, M. Cazier, W. J. Gertsch, R. Schrammel, 1♂ (AMNH); Santa Cruz Co., Pena Blanca Lake, northwest of Nogales, 31.24 N, 111.05 W, 19.V.1963, W. J. Gertsch, W. Ivie, several (AMNH); Santa Cruz Co., 10 miles east of Nogales, 9.V.1961, W.J. Gertsch, 1♀, 1 imm. (AMNH); Santa Cruz Co., Santa Rita Mountains, Madera Canyon, 7.VI.1952, Cazier, Gertsch, Schrammel, 1♀ (AMNH - with a male, however, male cannot be confirmed as this species). Texas: Alpine Co, 30.VI.1965, running on ground, M.H. Muma, 1♂ (FSU); Brewster Co., Big Bend National Park, The Basin, 5400', 24.V.1965, K.W. Haller, 1♂ (AMNH); Presidio Co., 11 miles west of Valentine, VI.1948, Reagan, Flury, 2♀ (AMNH); Val Verde Co., 19 miles north of Comstock, 14.IV.1973, C. Soileau, 2♀, 1♂, 3 imm. (AMNH); Val Verde Co., Seminole Canyon, Hwy 90, under bridge, 29°42.523"N , 101°18.138"W , 18.XI.2004, along road, under rock, P. Paquin, PP-8804, 1 imm. (EME sel_208). Diagnosis. Males can be distinguished from Selenops debilis and Selenops nesophilus by a combination of the embolus beginning at the 5 o'clock position and a MA that is broad, but tapers suddenly to a finger-like extension. Additionally, the conductor and RTA are shaped differently than those of Selenops debilis and Selenops nesophilus (Figs 59-62). Females can be distinguished by a more triangular epigynal plate, with a distally narrower septum. Internally, there is a much smaller invagination of the posterodorsal fold than in the other two species, and the spermathecae consist of two nearly parallel branches extending anteriorly (Figs 55-56). Description. Holotype male: Color:carapace brownish-red; sternum red-brown; chelicerae reddish-brown; maxillae light yellow-brown, lightening to white distally; labium grey-brown, lightening distally; abdomen dorsally grey-brown, damaged; ventrally dusky grey with no markings; legs orange-brown, annulations no longer apparent on this specimen. Carapace:0.96 times longer than broad; Eyes:AER slightly recurved; PER recurved; PME larger than AME, PLE largest, ALE smallest; eye diameters, AME 0.15, ALE 0.05, PME 0.20, PLE 0.33; interdistances AME-PME 0.05, PME-ALE 0.18, ALE-PLE 0.43. PME-PME 0.95 mm. ALE-ALE 1.58; ocular quadrangle AME-AME 0.40, PLE-PLE 1.95; clypeus 0.08 high. Mouthparts: chelicerae with a few stout setae medially and anteriorly; maxillae longer than broad, with tuft of conspicuous setae distally; labium distally rounded. Sternum:1.11 times longer than broad, posteriorly indented. Legs:Leg formula 4321 (Muma, 1953); scopulae present on distal end of all 4 tarsi; tarsi I-IV with strong claw tufts; pr claw toothed, rl claw with fewer teeth; Leg I, missing; Leg II, Fm pr 1 -1- 1, d 1 -1- 1, rl 1 -1- 1; Ti pr 1 -1- 0, d 1 -2- 0, rl 1 -1- 0, v 2 -2- 2; Mt pr 1 -1- 0, v 2-2, rl 1 -1- 0; Leg III, Fm pr 1 -1- 1, d 1 -1- 1, rl 1 -1- 1; Ti pr 1 -1- 0, d 1 -1- 0, rl 1 -1- 0, v 2 -1- 2; Mt v 2-2; Leg IV, Fm pr 1 -1- 1, d 1 -1- 1, rl 1 -1- 1; Ti pr 1 -1- 0, d 1 -2- 0, rl 1 -1- 0, v 2 -2- 2; Mt pr 1 -1- 0, v 2-2, rl 1 -1- 0. Abdomen:without terminal setal tufts. Pedipalp:Fm, spination dorsal 0 -1- 4; cymbium ovoid in ventral view; conductor large, subangular structure arising mediolaterally, curved on one side and sinuous on the other, angular at bottom, tapering upwards with small hook distally, pointed toward 12 o'clock; embolus long, slender, curving around edge of bulb, beginning at 4 o'clock, terminating at 12 o'clock; MA located at 2 o'clock position, directed laterally, with short, very wide base and a long finger-like process; RTA with two branches, ventral process smaller of the two and blunt and curved, the lateral process a stout stalk with large nearly quadrangular process; tibial apophyses extend at least 1/4 the length the cymbium in ventral view (Figs 53-54). Dimensions: Total length 8.60. Carapace length 4.25, width 4.45. Sternum length 2.00, width 1.80. Abdomen length 3.35, width 2.55. Pedipalp: Fm 1.50, Pt 0.30, Ti 0.75, Ta 1.00, total 3.55. Leg I: Missing. Leg II: Fm 5.50, Pt 2.00, Ti 5.00, Mt 4.75, Ta 2.00, total 18.75. Leg III: Fm 5.90, Pt 1.75, Ti 5.00, Mt and Ta missing. Leg IV: Missing. Female (CAS 1436): Color:carapace (CAS 1436) brown-red (recent) dusky yellow with dark patches laterally; sternum (CAS 1436) red-brown (recent) light orange-brown darker at border; chelicerae (CAS 1436) reddish-brown (recent) dusky yellow with broad lateral brown stripes; maxillae (CAS 1436) red-brown lightening distally (recent) light brown lightening distally; labium (CAS 1436) red-brown, lightening distally (recent) orange-brown, dusky on sides, lightening distally; abdomen dorsally (CAS 1436) grey-brown, damaged (recent) grey to cream-colored, slightly damaged, markings not visible; ventrally (CAS 1436) dark grey (recent) cream-colored; legs (CAS 1436) orange-brown, markings not visible (recent) dusky cream with stripes, not present on retrolateral side of femur. Carapace:0.98 times longer than broad. Eyes:AER slightly recurved; PER recurved; PME larger than AME, PLE largest, ALE smallest; eye diameters, AME 0.23, ALE 0.10, PME 0.35, PLE 0.53; interdistances AME-PME 0.05, PME-ALE 0.23, ALE-PLE 0.53. PME-PME 1.23. ALE-ALE 2.08; ocular quadrangle AME-AME 0.45, PLE-PLE 2.30; clypeus 0.23 high. Mouthparts:Chelicerae with stout setae medially and anteriorly; labium distally rounded. Sternum:1.13 times longer than broad, posteriorly indented. Legs:Leg I only slightly shorter than legs II, III and IV; leg formula 4321 (Muma, 1953); scopulae present on tarsi of all legs and metatarsi of legs I and II; tarsi I-IV with strong claw tufts; pr claw per foot slightly toothed; spination: leg I, Fm pr 1 -1- 0, d 1 -1- 1, rl 1 -1- 1; Ti v 2 -2- 2; Mt v 2-2; leg II, Fm pr 1 -1- 0, d 1 -1- 1, rl 1 -1- 1; Ti v 2 -2- 2; Mt v 2-2; leg III, Fm pr 1 -1- 0, d 1 -1- 1, rl 1 -1- 1; Ti v 2 -2- 0; Mt v 2-2; leg IV, Fm pr 1 -1- 0, d 1 -1- 1, rl 1 -1- 1; Ti pr 1 -0- 0, v 2 -2- 0, rl 1 -1- 0; Mt v 2-2. Abdomen:without terminal setal tufts. Pedipalp:Claw with 11 teeth. Epigyne:epigynal plate triangular, narrow septum that widens and connects to what appear to be epigynal pockets, genital openings located where the septum begins to widen; internally, spermathecae simple, two branched cylindrical structures that extend anteriorly, with each branch nearly parallel to the other, though the outermost branches curve outward a bit; small posterodorsal fold present that doesn't cover any of the internal structures, and is just a very slight invagination of the bottom of the epigynal plate (Figs 55-56). Dimensions: Total length 8.68. Carapace: length 5.00 width 5.10. Sternum: length 2.25, width 2.00. Pedipalp: Fm 1.35, Pt 0.60, Ti 0.80, Ta 1.50, total 4.25. Leg I: Fm 5.00, Pt 1.80, Ti 4.00, Mt 3.50, Ta 1.75, total 16.05. Leg II: Missing. Leg III: Fm 5.80, Pt 2.00, Ti 4.65, Mt 4.00, Ta 1.75, total 18.20. Leg IV: Fm 5.75, Pt 2.00, Ti 4.75, Mt and Ta missing. Natural History. Collected under rocks in the arid southwest (Fig. 198). Distribution. Definitely found from Sonora, Mexico , east to west Texas (Map 7). It may also be found in other areas of desert southwest of North America.