Sinopoda fornicata sp. nov.

Figs 2A–B, 9I –J and 12

Type material: Holotype female, 2 female (all IZCAS) and 1 female (SMF) paratypes, CHINA: Yunnan Province, Fumin County, Sandan Township, Panlong Village, Baoshidong Cave (25º17.679’N, 102º40.057’E, Alt: 1880m, T: 15°C, H: 90%), 4 April 2007, Yucheng Lin, Jie Liu leg.

Etymology: The specific name is derived from the Latin fornicatus, -a, -um, meaning “arched”, referring to the shape of the anterior swelling of the internal duct system; adjective.

Diagnosis: This new species may be recognised by 1. straight margins of lateral lobes roughly forming a triangle in the median epigyne and 2. unique anterior swelling of the internal duct system (Figs 2A–B).

Description: Female (holotype). Measurements (in mm): PL 7.8, PW 7.3, AW 4.0, PH 6.0, OL 9.7, OW 6.7. Eyes: AME 0.29, ALE 0.48, PME 0.57, PLE 0.70, AME–AME 0.22, AME–ALE 0.09, PME–PME 0.28, PME–PLE 0.39, AME–PME 0.36, ALE–PLE 0.24, CH AME 0.30, CH ALE 0.43. Leg and palp measurements: Pp 10.9 (3.4, 1.9, 2.2, -, 3.4), I 30.2 (8.5, 3.9, 7.9, 7.7, 2.2), II 33.0 (9.7, 4.2, 8.8, 8.1, 2.2), III 28.1 (8.4, 3.4, 7.5, 6.7, 2.1), IV 29.6 (8.5, 3.1, 7.9, 7.6, 2.5). Leg formula: II-I-IV-III. Spination: Pp 131, 101, 2121, 1014; Fe I–III 323, IV 331; Pa I, III 101, II 0 0 1, IV 000; Ti I–II, IV 2026, III 2126; Mt I–II 1014, III 2026, IV 3036.

Copulatory organ as in diagnosis. Posterior margin of epigyne only slightly bilobate, with median fissure running up to median part of epigyne. Internal ducts running parallel along the median line, anterior part slightly wider than posterior part, posterior part with twin-structures (Figs 2A–B).

Male. Unkown.

Distribution: China (Yunnan) (fig 12).