On four new canopy spiders of Dictynidae (Araneae) from Xishuangbanna Rainforest, China Author Zhang, Zhi-Sheng Author Li, Shuqiang text Zootaxa 2011 3066 21 36 journal article 46133 10.5281/zenodo.201342 dee215f5-41cd-4501-b8af-9f06c9434722 1175-5326 201342 Bannaella sinuata sp. nov. Figs 2–3 Type material. Holotype : Female, CHINA : Yunnan Province, Mengla County, Menglun Nature Reserve, from canopy of the primary tropical seasonal rain forest, 21°57.669ʹ N, 101°11.893ʹ E, alt. 790± 15 m , 7 July 2007 , G. Zheng leg. Paratypes : 2 females , same data as for holotype ( IZCAS ); 4 females , Menglun Nature Reserve, from canopy of the secondary tropical montane evergreen broad-leaved forest, 21°57.809ʹ N, 101°12.173ʹ E, alt. 633± 17 m , 4 August 2007 , G. Zheng leg. FIGURE 2. Bannaella sinuata gen. nov. & sp. nov. , holotype female. A. Epigyne, ventral view; B. Vulva, dorsal view. Abbreviations: CD = copulatory duct; CO = copulatory opening; FD = fertilization duct; S = spermatheca. Etymology. The specific name is derived from the Latin word ‘ sinuata ’, meaning ‘wind in and out’ and refers to the curved copulatory ducts; adjective. Diagnosis. Females of the new species similar to those of B. tibialis sp. nov. ( Figs 4 D–E, 6D–E) in having the same appearance, anteriorly located, slit-like copulatory openings and similar structure of epigyne, but can be distinguished by the longer copulatory ducts ( Figs 2 B, 3H) and the shape of spermathecae ( Figs 2 B, 3H). Description. Female. Total length 1.50–1.80. Holotype ( Figs 2 A–F): total length 1.80. Prosoma 0.79 long, 0.64 wide; opisthosoma 1.14 long, 0.72 wide. ALE 0.077, PME 0.060, PLE 0.075; ALE–ALE 0.048, PME–PME 0.046, PME–PLE 0.028, ALE–PLE 0.010. Clypeus smaller than the radius of ALE. Chelicerae with 2 or 3 promarginal and 3 or 4 retromarginal teeth. Calamistrum consisting of 6 curved setae. Leg measurements: I 1.72 (0.56, 0.61, 0.35, 0.21), II 1.43 (0.46, 0.48, 0.29, 0.20), III 1.13 (0.38, 0.38, 0.22, 0.15), IV 1.54 (0.52, 0.55, 0.30, 0.17). Leg formula: 1423. Epigyne ( Figs 2 A–B, 3G–H) with a pair of copulatory openings located anteriorly. Copulatory ducts slender and strongly curved. Spermathecae curved like “7” (left part). Fertilization ducts slender and pointing anterior-laterally, widely separated from each other. FIGURE 3. Bannaella sinuata gen. nov. & sp. nov. , holotype female. A. Habitus, dorsal view; B. Same, lateral view; C. Same, ventral view; D. Eyes and chelicerae, frontal view; E. Chelicera, ventral view; F. Metatarsus IV, calamistrum, retrolateral view; G. Epigyne, ventral view; H. Vulva, dorsal view. Male unknown. Distribution. Known only from the rainforest canopy of Xishuangbanna, Yunnan Province, China .