Sudesna cangshan sp. nov.

Figs 1, 2, 15 (苍山苏蛛)

Type material.

Holotype: China • ♀ (SWUC -T-DI-14-01); Yunnan Province; Dali City, Mount Cangshan, Dapoqing; 25°34′38″N, 100°07′51″E; elev. 2043 m; 30 August 2009; Z. Z. Yang leg.

Etymology.

The specific name is derived from the county where the type locality is located; used as a noun in apposition.

Diagnosis.

The female of this new species is similar to S. yangi sp. nov. (Figs 13, 14) in having a pale body and 9 - shaped copulatory openings, but it can be distinguished by having copulatory openings as large as the spermathecal head (vs twice as large), gently curved copulatory ducts (vs abruptly bent at an acute angle), and bifurcate spermatheca (vs clavate) (Figs 1, 2 B, C).

Description.

Female holotype (Fig. 2 A) total length 3.31. Prosoma 1.27 long, 1.16 wide; Opisthosoma 2.23 long, 1.65 wide. Dorsum of prosoma pale, with high cephalic area. Eye sizes and interdistances: AME 0.05, ALE 0.08, PME 0.08, PLE 0.07; AME – AME 0.11, AME – ALE 0.09, PME – PME 0.13, PME – PLE 0.12, ALE – PLE 0.02. MOA 0.20 long, anterior width 0.20, posterior width 0.27. Clypeus height 0.12. Chelicerae stout, yellowish brown, with 3 promarginal and 3 retromarginal teeth. Legs yellowish. Leg measurements: I 3.73 (1.04, 1.58, 0.70, 0.41); II 3.28 (1.04, 1.17, 0.68, 0.39), III 2.72 (0.92, 0.91, 0.58, 0.31), IV 3.20 (1.02, 1.12, 0.75, 0.31). Leg formula: 1243. Opisthosoma oval. Dorsum and venter pale. Spinnerets short and yellowish brown.

Epigyne (Figs 1, 2 B, C). Copulatory openings somewhat 9 - shaped and facing away from each other, separated by about 6 times their width. Copulatory ducts membranous, gently curved, longer than spermathecal length. Spermatheca bifurcate, spermathecal heads spherical. Fertilization ducts thin, curved, directed laterally.

Male unknown.

Distribution.

Known only from the type locality, Yunnan, China (Fig. 15).