Coelotes acerbus, Liu & Li & Pham, 2010

Liu, Jie, Li, Shuqiang & Pham, Dinh-Sac, 2010, 2377, Zootaxa 2377, pp. 1-93 : 5-6

Coelotes acerbus sp. nov.

Figs 1– 4, 87

Type material. Holotype male, 2 male paratypes, VIETNAM: Ninh Binh Province, Cuc Phuong National Park (20º21.44’N, 105º34.21’E), March 2007 to March 2008, Dinh-Sac PHAM leg.

Etymology. The specific epithet is taken from the Latin adjective ‘ acerbus ’, referring to the sharp distal end of cymbial furrow.

Diagnosis. This new species can be distinguished from other Coelotes species by the distinctly large conductor and strongly modified, broad patellar apophysis ( Figs 1B, 2A, 3B, 4B).

Description. Male. Total length 7.00–7.60. Holotype total length 7.50, prosoma 4.00 long, 2.75 wide; opisthosoma 3.50 long, 2.35 wide. Eye measurements: AME 0.10; ALE 0.15; PME 0.15; PLE 0.15; AME– AME 0.03; AME–ALE 0; ALE–PLE 0; PME–PME 0.05; PME–PLE 0.05. Clypeus height 0.13. Leg formula: IV, I, II, III; leg measurements: I: 13.55 (3. 55, 4.00, 3.50, 2.50); II: 11.70 (3.10, 3.75, 2.90, 1.95); III: 10.35 (2.80, 3.10, 2.90, 1.55); IV: 13.95 (3.75, 4.25, 4.00, 1.95). Chelicerae with three promarginal and five retromarginal teeth ( Fig. 2B). Patellar apophysis broad, strongly modified ( Figs 2A, 4B); RTA with distal end not extending beyond tibia ( Figs 2A, 4B); lateral tibial apophysis broad, close to RTA ( Figs 2A, 4B); cymbial furrow about half of cymbial length, with distal end sharp, slightly protruding ( Figs 2A, 4B); conductor simple, broad, with a triangular-shaped, sharp dorsal apophysis ( Figs 1B, 2A, 3B, 4B); median apophysis broad, round ( Figs 1B, 2A, 3B, 4B); embolus filiform, originating prolaterally ( Figs 1B, 3B).

Female. Unknown.

Habitat preferences. These specimens were collected by leaf-litter sieving, this species mostly lives in leaf litter.

Distribution. Vietnam (Ninh Binh) ( Fig. 87).