Thirty-one new species of the spider genus Leclercera from Southeast Asia (Araneae, Psilodercidae) Author Chang, Wan-Jin Author Li, Shuqiang text ZooKeys 2020 913 1 87 http://dx.doi.org/10.3897/zookeys.913.48650 journal article http://dx.doi.org/10.3897/zookeys.913.48650 1313-2970-913-1 575D3DC1CBF44E99816D0F68F931F927 2AC899BE84CE53E0B7461D63DA3F0A03 Leclercera sanjiao sp. nov. Figs 35 , 55C , 58 Types. Holotype : ♀ (IZCAS), China, Tibet Autonomous Region, Xigaze, Gyirong County, Zalong Village, 28°22.8650'N , 85°21.1580'E , elevation ca 2715 m, 31.VIII.2014, Y. Li leg. Etymology. The species name is a noun in apposition derived from the Chinese pinyin "sanjiǎo" (triangle) and refers to the distinct triangular shape of the external genitalia. Diagnosis. Females of L. sanjiao sp. nov. can be distinguished from other congeners by the distinct triangular form of the external genitalia (Fig. 35B ) (vs. the absence of triangular external genitalia in congeners), and a pair of transverse linear spermathecae (Fig. 35A ) (vs. the absence of linear spermathecae in congeners). Figure 35. Leclercera sanjiao sp. nov., female paratype. A Endogyne, dorsal view B female epigastric area, ventral view C female habitus, dorsal view D female habitus, ventral view. Abbreviation: SP = spermatheca. Description. Female. Total length 3.80; carapace 1.20 long, 1.20 wide; abdomen 2.60 long, 1.60 wide. Carapace round and brown, with three longitudinal dark brown bands, median band four times wider than the lateral band (Fig. 35C ). Chelicerae brown (Fig. 55C ). Clypeus brown, with dark brown band medially. Endites dark brown, light brown basally. Labium and sternum dark brown. Abdomen elongated, dorsum with scattered dark brown spots laterally, with dark brown median stripes (Fig. 35C ), antero-ventrally light brown with a distinct triangular external genitalia region, with indistinct dark brown patches posteriorly (Fig. 35D ). Legs uniformly brown; measurements: I 17.49 (4.81, 0.50, 5.13, 5.13, 1.92), II 12.90 (3.80, 0.50, 3.60, 3.60, 1.40), III 9.17 (2.88, 0.40, 2.40, 2.40, 1.09), IV 13.67 (4.17, 0.50, 3.75, 3.75, 1.50). Epigastric area (Fig. 35B ): triangular pale brown patch with posterior yellowish slit. Endogyne (Fig. 35A ): a pair of transverse, linear spermathecae, with the posterior pair curving downwards, slightly longer than the anterior pair; both anterior and posterior pairs with rounded tips and similar in width. Male . Unknown. Distribution. Known only from the type locality (Fig. 58 ).