Coelotes forficatus Liu & Li, 2010, sp. nov.

Coelotes forficatus sp. nov.

Figs 1–5 and 21

Type material: Holotype male, 2 female paratypes, CHINA: Yunnan Province, Xishuangbanna Dai Autonomous Prefecture, Mengla County, Menglun Town, Secondary tropical seasonal moist forest (21º54.607’N, 101º17.005’E, Alt: 633m), 10 October 2006, Guo ZHENG leg.; 2 female paratypes, Menglun Town, Primary tropical seasonal rain forest (21º57.445’N, 101º12.997’E, Alt: 744m), 24 December 2006, Guo ZHENG leg.; 1 female paratype, Menglun Town, Secondary tropical seasonal rain forest (21º55.428’N, 101º16.441’E, Alt: 598m), 24 December 2006, Guo ZHENG leg.

Etymology: The specific epithet is taken from the Latin adjective ‘ forficatus ’, referring to the forficiform (scissor–shaped) distal conductor and conductor dorsal apohysis; adjective.

Diagnosis: The new species is similar to Coelotes pseudoterrestris Schenkel, 1963 in having similar embolic base (Figs 2 A, 3B), large and curved conductor dorsal apophysis (Figs 1 B, 4B), round median apophysis (Figs 1 B, 4B), similar atrium and simple spermathecae in female (Figs 2 B–C, 5B–C). But can be distinguished from the latter by the short conductor (Figs 2 A, 3B), the stout patellar apophysis (Figs 2 A, 3B), the absence of lateral tibial apophysis, the relatively long cymbial furrow in male (Figs 1 B, 4B), by the strongly curved anterior margin of epigynal atrium, the inversely U–shape copulatory ducts and the broad spermathecal heads in female (Figs 2 B–C, 5B–C). These two species can be distinguished from other Coelotes species by the scissor–shaped distal conductor and conductor dorsal apohysis, by the simple spermathecae which are close to each other posterioly but separated anteriorly.

Description. Male (measurements of the holotype): Total length 8.45. Prosoma length 3.90, width 3; Opisthosoma length 4.55, width 2.70. Eye measurements: AME 0.35; ALE 0.50; PME 0.40; PLE 0.40; AME– AME 0.15; AME–ALE 0.05; ALE–PLE 0; PME–PME 0.10; PME–PLE 0.15. Eyes pale, AME slightly reduced. Clypeus height 0.40. Leg formula: IV, I, II, III; leg measurements: I: 17.50 (4. 35, 5.50, 4.75, 2.90); II: 15.25 (4.00, 4.60, 4.15, 2.50); III: 14.00 (3.75, 4.15, 4.00, 2.10); IV: 18.15 (4.65, 5.25, 5.60, 2.65). Chelicerae with three promarginal and five retromarginal teeth (Fig. 1 C). Patellar apophysis stout, with a small distal branch (Figs 2 A, 3B); RTA with distal end slightly extending beyond tibia (Figs 1 B, 4B); lateral tibial apophysis absent (Figs 1 B, 4B); cymbial furrow slightly less than half of cymbial length (Figs 1 B, 4B); conductor simple and short, conductor dorsal apophysis large, curving and forming a scissor–shaped with the distal conductor (Figs 2 A, 3B); median apophysis broad and round (Figs 1 B, 4B); the line between tegulum sclerite and embolic base indistinct (Figs 2 A, 3B); embolus filiform, originating prolaterally (Figs 2 A, 3B).

Female (measurements of one of paratype, another paratype in parentheses): Total length 13.00(14.00). Prosoma length 5.50(5.50), width 3.90(3.80); Opisthosoma length 7.50(8.50), width 4.65(6.25). Eye measurements: AME 0.40(0.38); ALE 0.60(0.55); PME 0.45; PLE 0.50; AME–AME 0.15; AME–ALE 0.15; ALE–PLE 0; PME–PME 0.20; PME–PLE 0.35. Clypeus height 0.65(0.60). Leg formula: IV, I, II, III; leg measurements: I: 17.50(17.40) [4.75(4.60), 5.85(5.85), 4.30(4.40), 2.60(2.55)]; II: 15.25(15.25) [4.30(4.25), 5.00(4.95), 3.80(3.80), 2.15(2.25)]; III: 14.55(14.10) [4.10(4.10), 4.60(4.25), 3.90(3.75), 1.95(2.00)]; IV: 18.15(19.05) [5.00(5.15), 5.50(5.90), 5.25(5.50), 2.40(2.50)]. Chelicerae with three promarginal and five retromarginal teeth. Epigynal teeth small, with sharp end, situated medially and laterally, widely separated (Figs 2 B, 5B); atrium long, shallow (Figs 2 B, 5B); copulatory ducts inversely U–shape (Figs 2 C, 5C); spermathecal heads short and broad, situated anteriorly, widely separated (Figs 2 C, 5C); spermathecae simple, large and slightly separated (Figs 2 C, 5C).

Distribution: Only known from Menglun Natural Reserve of Xishuangbanna Dai Autonomous Prefecture in Yunnan Province in China (Fig. 21).