Selenops willinki Corronca, 1998

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 : 15-17

Selenops willinki Corronca, 1998 Figs 11-14179197Map 2

Selenops willinki Corronca 1998: 146, Fig. 69 (♂ holotype from Port of Spain, Goodwar Park, Trinidad (AMNH), not available for examination).

Note.

The male holotype of Selenops willinki Corronca, 1998, is stated to be deposited in the AMNH ( Corronca 1998: 146) but the specimen has not arrived at AMNH. Nevertheless, the description and illustrations are adequate to recognize the specimens described and listed below as this species.

Material examined.

TRINIDAD AND TOBAGO: Little Tobago: 11°18'03.7"N, 60°30'11.1"W, ~63 m, 16.VII.2005, S. Crews, C. Chaboo, C. Barr, B. Shepard, left trail along ridge, SCC05_041 4♀, 2♂, 18 imm. (CAS sel_230-236, 238, 240, 242-243, 245, 251-253, 255-256, 258-259, 261-263).

Diagnosis.

Males can be distinguished from other species by the sclerites which obscure the cymbium laterally, and the RTA is directed lateroventrally, and the very small, finger-like, distally directed MA (Figs 11-12). Females can be distinguished from all other species by the anteriorly located genital openings, and medially located epigynal pockets (Figs 13-14).

Remarks.

The female of Selenops willinki is described here for the first time. Corronca (1998) associated the female of Selenops geraldinae with this species. Additional collecting and molecular genetic data ( Crews and Gillespie 2010) confirmed that the male and female described here as Selenops willinki are conspecific.

Description.

Male sel_251: Color:carapace yellow, dusky around edges, fovea and mediolaterally; sternum pale yellow; chelicerae yellow, dusky u-shaped markings terminating halfway down; maxillae pale yellow; labium pale yellow; abdomen dorsally light dusky yellow, becoming more orange 3/4 way down, 3 markings at the top, one in the middle and 2 on the sides, a pair of dots in the anterior 1/4, a pair located medi ally and some specks below and on the sides, edges dark and festoon present; ventrally yellowish, dark lateroposteriorly; legs light yellow, darkening slightly distally with light annulations visible. Carapace: 1.01 times longer than broad; fovea longitudinal, broad, very shallow. Eyes:AER slightly recurved; PER slightly recurved; PME larger than AME, PME same as PLE, ALE smallest; eye diameters, AME 0.20, ALE 0.05, PME 0.30, PLE 0.30; interdistances AME-PME 0.08, PME-ALE 0.08, ALE-PLE 0.35. PME-PME 1.95. ALE-ALE 1.58; ocular quadrangle AME-AME 0.48, PLE-PLE 1.78; clypeus 0.07 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:1.17 times longer than broad, posteriorly indented. Legs:leg I only slightly shorter than leg III; leg formula 3214; scopulae present on distal end of all 4 tarsi; 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– 0; Ti d 1 –1– 0, pr 1 –0– 1, rl 1 –0– 1, v 2 –2– 2; Mt v 2-2; leg II, Fm pr 1 –1– 1, d 1 –1– 1, rl 1 –1– 1; Ti pr 1 –0– 1, d 1 –1– 0, rl 1 –0– 1, v 2 –2– 2; Mt v 2-2; leg III, Fm pr 1 –1– 1, d 1 –1– 1, rl 1 –1–1– 1; Ti pr 1 –0– 1, d 1 –0– 0, rl 1 –0– 1, v 2-2; Mt pr 0, rl 1 –1– 0, v 2-1; leg IV, Fm pr 1 –1– 0, d 1 –1– 1, rl 1 –1– 1; Ti pr 1 –0– 1, rl 1 –0– 1, d 1 –0– 0, v 2-2; Mt pr 1 –1– 0, rl 1 –1– 0, v 2-1. Abdomen:without terminal setal tufts. Pedipalp:Fm, spination dorsal 0 –1– 4; cymbium triangular in ventral view, angled posterolaterally; scopulae scattered, denser distally; conductor large, angular, arising lateromedially on bulb, c-shaped laterally, truncate and sinuate distally; embolus short, sickle-like, arising at 4 o'clock, ending at 10 o'clock, very stout basally, tapering distally, though fairly stout throughout; MA finger-like, wide basally, curved anteriorly, located at 2 o'clock, directed ventrally; RTA barely reaching cymbium in ventral view, 2 apophyses, ventral apophysis small, curved ventrally, dorsal apophysis very wide, angular (Figs 11-12). Dimensions: Total length 7.78. Carapace length 4.00, width 4.03. Sternum length 1.75, width 1.50. Abdomen length 3.78, width 2.78. Pedipalp: Fm 1.00, Pt 0.50, Ti 0.80, Ta 1.00, total 3.30. Leg I: Fm 3.90, Pt 1.50, Ti 3.50, Mt 3.25, Ta 1.65, total 13.80. Leg II: Fm 4.00, Pt 1.50, Ti 3.75, Mt 3.50, Ta 1.55, total 14.20. Leg III: Fm 4.65, Pt 1.50, Ti 3.75, Mt 3.50, Ta 1.35, total 14.75. Leg IV: Fm 4.50, Pt 1.00, Ti 3.65, Mt 3.40, Ta 1.00, total 13.55.

Female (sel_236): Color:carapace yellow-orange, 4 dusky spots on each side of carapace, the first, closest to the eyes, is black, dusky markings mediolaterally and laterally from the cephalic area to the posterior end of the cephalothorax; sternum yellow, darker around border; chelicerae same color as cephalothorax with dark marks anterolaterally; maxillae pale yellow, lighter distally; labium dusky yellow, lightening distally; abdomen dorsally cream-colored with 3 dark spots at top, medial dark stripe, 2 dark patches posteriorly, and a prominent festoon, and many dark splotches; ventrally cream-colored; legs orange to yellow, darkening slightly distally, with annulations becoming more prominent distally from patella to tibia. Carapace: 0.97 times longer than broad; fovea longitudinal, broad, very shallow. Eyes:AER slightly recurved; PER slightly recurved; PME larger than AME, PLE largest, ALE smallest; eye diameters, AME 0.15, ALE 0.08, PME 0.28, PLE 0.30; interdistances AME-PME 0.08, PME-ALE 0.10, ALE-PLE 0.30. PME-PME 1.00. ALE-ALE 1.75; ocular quadrangle AME - AME 0.40, PLE-PLE 1.90; clypeus 0.11 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: 1.06 times longer than broad, posteriorly indented. Legs:leg I only slightly shorter than legs II, III and IV; leg formula 3241; scopulae present on all 4 tarsi and metatarsi and tibiae 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 –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 1 –0– 1; Ti v 2 –2– 2; Mt v 2-2; leg III, Fm pr 1 –0– 0, d 1 –1– 1, rl 1 –0– 1; Ti v 2 –2– 0; Mt v 2-1; leg IV, Fm pr 0, d 1 –1– 1, rl 0; Ti v 2-1; Mt v 2-1. Abdomen:with terminal setal tufts. Pedipalp:claw present with 9 teeth. Epigyne:lateral lobes inconspicuous, sinuate ridge in anterior third of epigynal plate, with anteriorly projecting median portion, genital openings located at lateral margins of sinuate ridge, epigynal pockets located medially; internally, ducts long, extending laterally, beginning anteromedially, terminating posteriorly, sinuous, fertilization ducts located posteriorly, small posterodorsal fold present, covering posterior portion of internal ducts (Figs 13-14). Dimensions: Total length 8.53. Cephalothorax length 3.90, width 4.03. Sternum length 1.80, width 1.70. Abdomen length 4.63, width 4.08. Pedipalp: Fm 1.00, Pt 0.50, Ti 0.50, Ta 1.00, total 3.00. Leg I: Fm 3.50, Pt 1.60, Ti 3.00, Mt 2.50, Ta 1.00, total 11.60. Leg II: Fm 4.00, Pt 1.50, Ti 3.50, Mt 2.75, Ta 1.00, total 12.75. Leg III: Fm 4.00, Pt 1.40, Ti 3.50, Mt 3.50, Ta 1.00, total 13.40. Leg IV: Fm 4.00, Pt 1.00, Tj 3.00, Mt 2.75, Ta 0.87, total 11.62.

Natural history.

Found under the bark of Bursera and Diaspyros as well as on Sabal (Figs 179, 197).

Distribution.

Little Tobago and Port of Spain in Trinidad and Tobago (Map 2).