Selenops marcanoi Alayon-Garcia , 1992

Crews, Sarah C., 2011, A revision of the spider genus Selenops Latreille, 1819 (Arachnida, Araneae, Selenopidae) in North America, Central America and the Caribbean, ZooKeys 105, pp. 1-182 : 93-94

Selenops marcanoi Alayon-Garcia, 1992 Figs 123-126Map 13

Selenops marcanoi Alayón-García 1992: 3, Figs 3a-3b (♀, not examined).

Type material.

Holotype female: El Aguacate, Neyba, Baoruco, Dominican Republic (IES), not examined.

Other material examined.

DOMINICAN REPUBLIC: Pedernales: El Banano, Rio Mulito, 18°09.165'N, 71°45.388'W, ~288 m, 25 XI.2004, S. Crews, under bark, SCC04_081, 1♀, 4♂, 1 imm. (EME sel_150-152, MNHN sel_153-154, CAS sel_155). Barahona: Carretera El Higuero-Polo, 18°00.251'N, 71°18.838'W, ~466 m, 26.XI.2004, S. Crews, under bark, SCC04_083, 3 imm. (CAS sel_169-170, 172).

Diagnosis.

Females can be separated from others by having only a lightly sclerotized median area, with a sinuous opening and large, round spermathecae (Figs 123-124). The male palpal organ is most similar to that of Selenops insularis , though the circular space formed by the conductor connections is more semi-circular, and the RTA is not as wide distally and is truncate (Figs 125-126).

Description.

Male (sel_152): Color:carapace yellow, slightly dusky laterally; sternum pale yellow; chelicerae dusky yellow; maxillae pale yellow; labium pale yellow; abdomen dorsally cream-colored background with many small spots, particularly medially, a median lanceolate stripe, with the chevrons below, with a single dot below this, festoon prominent; ventrally cream-colored, dark laterally, caudally; legs light yellow, darkening slightly distally, with faint annulations. Carapace: 0.89 times longer than broad; fovea longitudinal, broad, very shallow. Eyes:AER nearly straight; PER slightly recurved; PME larger than AME, PLE largest, ALE smallest; eye diameters, AME 0.10, ALE 0.09, PME 0.16, PLE 0.25; interdistances AME-PME 0.06, PME-ALE 0.14, ALE-PLE 0.33. PME-PME 1.00. ALE-ALE 1.60; ocular quadrangle AME-AME 0.35, PLE-PLE 1.60; clypeus 0.05 high. Mouthparts:chelicerae with stout setae medially and anteriorly; maxillae longer than broad, with tuft of conspicuous setae distally; labium distally rounded. Sternum:as long as broad, posteriorly indented. Legs:leg I only slightly shorter than II and III; leg formula 2314; scopulae present on all 4 tarsi and metatarsi and tibia I and II; tarsi I-IV with strong claw tufts; pr claw per foot slightly toothed; spination: leg I, Fm pr 1 –1– 1, d 1 –1– 1, rl 1 –1– 1; Ti pr 1 –0– 1, d 1 –0– 1, rl 1 –0– 1, v 2 –2– 2; Mt pr 1 –1– 0, v 2 –2– 0, rl 1 –0– 0; leg II, Fm pr 1 –1– 1, d 1 –1– 1, rl 1 –1– 1; Ti pr 1 –0– 1, d 1 –0– 1, rl 1 –0– 1, v 2 –2– 2; Mt pr 1 –1– 0, v 2-2, rl 1 –0– 0; leg III, Fm pr 1 –1– 1, d 1 –1– 1, rl 1 –1– 1; Ti pr 1 –0– 1, rl 1 –0– 1, v 2-2; Mt pr 1 –1– 0, rl 1 –0– 0, v 2-1; leg IV, Fm pr 1 –1– 1, d 1 –1– 1, rl 1 –1– 1; Ti pr 1 –0– 1, rl 1 –0– 0, v 1-1; Mt pr 1 –1– 0, rl 1 –0– 0, v 2-1. Abdomen:without terminal setal tufts. Pedipalp:Fm, spination d 0 –1– 4; cymbium oval in ventral view, slightly angled posterolaterally; scopulae scattered, denser toward tip; conductor hammer shaped to T-shaped, arising anteromedially on slightly curved stalk, reconnecting laterally, pointed laterally; embolus long and slender, beginning at 4 o'clock, terminating at 11 o'clock; MA narrow, sinuous, distally curved into small single hook, originating at 3-4 o'clock, directed distally; RTA extending 1/5 the length of cymbium in ventral view; with two apophyses, dorsal apophysis rectangular, only slightly curved, wider, truncate distally, ventral apophysis narrower, shorter (Figs 125-126). Dimensions: Total length 6.75. Carapace length 3.30, width 3.70. Sternum length 1.75, width 1.75. Abdomen length 3.45, width 2.85. Pedipalp: Fm 0.80, Pt 0.25, Ti 0.45, Ta 0.85, total 2.35. Leg I: Fm 4.00, Pt 1.75, Ti 4.00, Mt 3.75, Ta 1.60, total 15.10. Leg II: Fm 5.45, Pt 1.95, Ti 4.75, Mt 4.00, Ta 1.75, total 17.90. Leg III: Fm 5.00, Pt 1.50, Ti 4.75, Mt 4.00, Ta 1.60, total 16.85. Leg IV: Fm 4.50, Pt 1.00, Ti 3.75, Mt 3.50, Ta 1.25, total 14.00.

Female (sel_151): Color:carapace orange-brown, duskier laterally, white setae on lateral margins and in cephalic area; sternum light yellow to orange-brown, darker around border; chelicerae brown; maxillae brown, lightening distally; labium brown, lightening distally; abdomen dorsally cream-colored background with many small spots, particularly medially, with the splotches below this forming a fanned chevron pattern, with one dot below this, dark laterally, festoon prominent; ventrally cream-colored, dark laterally and caudally; legs light yellow to brown darkening distally, annulations faint. Carapace: 0.81 times longer than broad; fovea longitudinal, broad, very shallow. Eyes:AER nearly straight; PER slightly recurved; PME larger than AME, PLE largest, ALE smallest; eye diameters, AME 0.26, ALE 0.08, PME 0.28, PLE 0.40; interdistances AME-PME 0.04, PME-ALE 0.15, ALE-PLE 0.26. PME-PME 1.13 mm. ALE-ALE 2.98; ocular quadrangle AME-AME 0.40, PLE-PLE 3.05; clypeus 0.05 high. Mouthparts:chelicerae with stout setae medially and anteriorly; maxillae longer than broad, with tuft of conspicuous setae distally; labium distally rounded. Sternum:as long as broad, posteriorly indented. Legs:leg I only slightly shorter than II and III; leg formula unknown (at least one leg missing), 2341 ( Alayón-García 1992); scopulae present on all 4 tarsi and metatarsi of leg II and metatarsi and tibiae of leg I; 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 0 –0– 1; Ti d 0, v 2 –2– 2; Mt v 2-2; leg II, Fm pr 1 –0– 0, d 1 –1– 1, rl 0 –0– 1; Ti v 2 –2– 2; Mt v 2-2; leg III, Fm pr 1 –0– 0, d 1 –1– 1, rl 0; Ti v 1 –1– 0; Mt v 2-0. Abdomen:without terminal setal tufts. Pedipalp: claw with 7 teeth. Epigyne:anteromedian area less sclerotized than rest of epigynum, lateral lobes fused medially, sinuous projection medially, genital openings occur behind this, epigynal pockets present; internally, ducts lead to large roundish spermathecae, posterodorsal fold present, quadrangular, covering majority of internal ducts (Figs 123-124). Dimensions: Total length 8.00. Carapace length 3.45, width 4.25. Sternum length 1.88, width 1.88. Abdomen length 4.55, width 3.90. Pedipalp: Fm 1.00, Pt 0.30, Ti 1.50, Ta 1.00, total 3.80. Leg I: Fm 4.00, Pt 1.60, Ti 3.30, Mt 3.00, Ta 1.25, total 13.15. Leg II: Fm 5.00, Pt 1.75, Ti 4.40, Mt 3.00, Ta 1.00, total 15.15. Leg III: Fm 5.00, Pt 1.75, Ti 4.00, Mt 3.00, Ta 1.25, total 15.00. Leg IV: Missing.

Natural history.

This species has been collected under bark, in riparian areas and dry forests. Alayón-García (1992) also reported this species occurring under rocks in humid forests.

Distribution.

Endemic to the Dominican Republic and seems to have a range restricted to the south of the country (Map 13).