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 Genus Sinoderces Li & Li, 2017 Type species. Sinoderces nawanensis Li & Li, 2017 Diagnosis. The genus is distinguished (together with Thaiderces Li & Li, 2017) from all the other genera in Psilodercidae by the absence of an apical protrusion on the male cymbium. It is distinguished from the genus Thaiderces by the presence of a single tooth on the cheliceral retromargin and the long embolus of the palpal bulb ( Liu et al. 2017 ). Cheliceral promargin with lamina, retromargin with a tooth or denticle; palpal bulb with long embolus; conductor present or absent-if present, then embolus and conductor separated basally; female with two pairs of elongate, curved spermathecae ( Liu et al. 2017 ).