Coelotes polyedricus, Liu & Li & Pham, 2010

Liu, Jie, Li, Shuqiang & Pham, Dinh-Sac, 2010, 2377, Zootaxa 2377, pp. 1-93 : 19-22

Coelotes polyedricus sp. nov.

Figs 15–19, 87

Type material. Holotype male, 29 male and 10 female paratypes, VIETNAM: Vinh Phuc Province, Tam Dao National Park (21º31.56’N, 105º33.15’E), March 2007 to March 2008, Dinh-Sac PHAM leg.

Etymology. The specific epithet is taken from the Latin adjective ‘ polyedricus ’, referring to the polygonal atrium.

Diagnosis. The new species can be distinguished from other Coelotes species by the short and broad retrolateral tibial apophysis, large lateral tibial apophysis which is close to retrolateral tibial apophysis, the absence of cymbial furrow, the unique embolus in male ( Figs 15B, 16A, 17B, 18B); by the large and quadrate atrium with two distinct copulatory openings, the unique copulatory ducts in female. ( Figs 16B–C, 19B–C).

Description. Male. Total length 9.50–10.65. Holotype total length 10.15, prosoma 5.25 long, 3.60 wide; opisthosoma 4.90 long, 3.25 wide. Eye measurements: AME 0.13; ALE 0.23; PME 0.23; PLE 0.23; AME– AME 0.03; AME–ALE 0.04; ALE–PLE 0; PME–PME 0.08; PME–PLE 0.10. Clypeus height 0.15. Leg formula: IV, I, II, III; leg measurements: I: 17.75 (4. 75, 5.75, 4.25, 3.00); II: 14.15 (4.05, 4.55, 3.30, 2.25); III: 13.30 (3.75, 4.00, 3.50, 2.05); IV: 17.25 (4.75, 5.10, 5.00, 2.40). Chelicerae with three promarginal and two retromarginal teeth ( Fig. 15C). Patellar apophysis small ( Figs 15B, 18B); RTA short, broad, slightly shorter than tibial width ( Figs 15B, 18B); lateral tibial apophysis large, close to RTA ( Figs 15B, 18B); cymbial furrow absent ( Figs 15B, 18B); conductor simple, short, ventral part of conductor narrow, dorsal part wide, conductor dorsal apophysis large ( Figs 15B, 16A, 17B, 18B); median apophysis large, spoon-shaped ( Figs 16A, 17B); embolus broad proximally and thin distally, originating prolaterally ( Figs 16A, 17B).

Female. Total length 9.00–11.00. One of paratype total length 10.50, prosoma 4.25 long, 3.00 wide; opisthosoma 6.00 long, 4.10 wide. Eye measurements: AME 0.13; ALE 0.23; PME 0.20; PLE 0.23; AME–AME 0.04; AME–ALE 0.04; ALE–PLE 0; PME–PME 0.08; PME–PLE 0.10. Clypeus height 0.20. Leg formula: IV, I, II, III; leg measurements: I: 13.00 [3.55, 4.30, 3.10, 2.05]; II: 10.95 [3.15, 3.55, 2.60, 1.65]; III: 10.00 [2.85, 3.00, 2.65, 1.50]; IV: 13.60 [3.75, 4.25, 3.80, 1.80]. Chelicerae with three promarginal and two retromarginal teeth. Epigynal teeth small, with sharp end, situated anteriorly and laterally, widely separated ( Figs 16B, 19B); atrium large and quadrate, with two distinct copulatory openings ( Figs 16B, 19B); copulatory ducts large, extending anteriorly, slightly separated at base and widely separated at distal part ( Figs 16C, 19C); spermathecal heads absent ( Figs 16C, 19C); spermathecae simple, large and slightly separated at base ( Figs 16C, 19C).

Habitat preferences. These specimens were collected by pitfall traps, this species may live on the forest floor or in leaf litter.

Distribution. Vietnam (Vinh Phuc) ( Fig. 87).