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 duandai sp. nov. Figs 24 , 55K , 58 Types. Holotype : ♀ (IZCAS), China, Tibet Autonomous Region, Nyingchi, Medog County, Beibung Village, around Jiagagou Bridge, 29°15.0670'N , 95°11.7170'E , elevation ca 805 m, 18.VI.2016, J. Wu leg. Etymology. The species name is a noun in apposition derived from the Chinese pinyin "duandai" (ribbon) and refers to the structure of the spermathecae resembling a ribbon knot (Fig. 24A ). Diagnosis. Females of L. duandai sp. nov. can be distinguished from other congeners by the unique orange coloration of the external genitalia and the spermathecae (Fig. 24A, B ) which resemble a pair of orange-coloured ribbon knots (vs. absence of orange coloration on the external genitalia or spermathecae in congeners). Figure 24. Leclercera duandai 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 2.88; carapace 0.96 long, 1.00 wide; abdomen 1.92 long, 0.80 wide. Carapace round and brown, with three longitudinal dark brown bands, median band 8 times wider than the lateral bands (Fig. 24C ). Chelicerae brown (Fig. 55K ). Clypeus light brown. Endites light brown, dark brown marginally. Labium dark brown. Sternum light brown, with longitudinal dark brown spots laterally. Abdomen elongated, dorsum with dark brown spots, with posterior dark brown stripes medially (Fig. 24C ), antero-ventrally with ovoid, orangish external genitalia, with scattered dark brown spots posteriorly (Fig. 24D ). Leg measurements: I-IV missing. Epigastric area (Fig. 24B ): an elliptical, orangish patch. Endogyne (Fig. 24A ): a pair of spermathecae resembling a ribbon knot, posterior receptacles with a pair of ovoid bodies with two-branched, upturned ends. Male . Unknown. Distribution. Known only from the type locality (Fig. 58 ).