Ten new species of the spider genus Sinoderces Li & Li, 2017 from China, Laos and Thailand (Araneae, Psilodercidae) Author Bai, Zilong Author Li, Fengyuan Author Li, Shuqiang text ZooKeys 2019 886 79 111 http://dx.doi.org/10.3897/zookeys.886.39212 journal article http://dx.doi.org/10.3897/zookeys.886.39212 1313-2970-886-79 FF4F3062D2834B5D80C3AEFC6361CE39 FE26EDCBAAAE55D9AF310A7BFBD1FD85 Sinoderces wenshanensis Li & Li sp. nov. Figs 13 , 14 , 21 , 22 Types. Holotype : ♂, Radio and television station hill, Xiqiao County, Wenshan, Yunnan Province, China, 23°25.980'N , 104°40.392'E , 1556 m, 17.V.2015, Li F. and Chen Z. leg. Paratypes : 2♀, same data as holotype. Etymology. The specific name refers to the name of the hill at the type locality; adjective. Diagnosis. Sinoderces wenshanensis sp. nov. can be distinguished from all other known species by the nearly parallel conductor and embolus ( Fig. 13D ). The conductor is membranous ( Fig. 13 B-D ). Palp nearly light yellow. Entrance duct is visible even before soaking them in lactic acid. Epigyne resembles a fan. Females have two pairs of spermathecae, with the inner pair together resembling the smile of a smiley face and the outer pair protruding anteriorly ( Fig. 14A, B ) Figure 13. Sinoderces wenshanensis Li & Li, sp. nov., male holotype A palp, ventral view B palp, prolateral view C palp, retrolateral view D palpal bulb, ventral view Abbreviations: CO conductor, EM embolus. Description. Male (holotype). Total length 1.72; carapace 0.62 long, 0.70 wide; abdomen 1.10 long, 0.60 wide. Carapace round, dark brown, with dark brown margins ( Fig. 14E ). Clypeus light brown. Chelicerae light yellow. Cheliceral promargin with one tooth, followed by a lamina; retromargin with one small tooth ( Fig. 21G ). Endites yellow. Labium light brown. Sternum dark brown. Legs brown, joints dark. Leg measurements: I missing, II missing, III missing, IV 7.05 (1.87, 0.25, 2.25, 1.75, 0.93). The abdomen is slightly distorted from preservation ( Fig. 14E ). Opisthosoma brown. Spinnerets brown. Male palp ( Fig. 13 ): Bulb light, ovate, Conductor almost parallel to the palpal axis. Embolus arising terminally from the bulb, straight and needle-like. Conductor arising close to embolus, membranous. Embolus and conductor completely separated. Tibia, femur and trochanter light yellow with hairs. Female (paratype). Similar to male in color and general features ( Fig. 14C, D ). Sternum heart-shaped. Total length 1.72; carapace 0.63 long, 0.70 wide; abdomen 1.09 long, 0.61 wide. Carapace round and brown. Clypeus brown and chelicerae yellow. Endites dark yellow. Labium and sternum brown. Legs brown, joints dark. Leg measurements: I 6.78 (1.75, 0.31, 2.00, 1.72, 1.00), II 5.15 (1.31,0.31,1.56,1.25,0.72), III 4.13 (1.09, 0.31, 1.16, 0.94, 0.63), IV 6.06 (1.56, 0.31, 1.91, 1.47, 0.81). Abdomen elongated, with yellow pinstripe dorsally and ventrally. Epigyne ( Fig. 14A, B ): fan-like, brown, with sparse hairs. Other features described under Diagnosis ( Fig. 14A, B ). Distribution. Known only from the type locality ( Fig. 22 ). Natural history. Collected from leaf litter at an elevation of 1556 m. Figure 14. Sinoderces wenshanensis Li & Li, sp. nov., male holotype and female paratype A internal genitalia, dorsal view B female epigastric furrow, ventral view C female habitus, dorsal view D female habitus, ventral view E male habitus, dorsal view. Abbreviation: SP spermathecae.