Three new species of the genus Ischnothyreus Simon, 1893 and the discovery of the male of I. linzhiensis Hu, 2001 from Tibet, China (Araneae, Oonopidae)

Ischnothyreus pome sp. nov., male holotype A–C habitus in dorsal, ventral and lateral views (arrow shows the fused scuta) D–F prosoma, dorsal, ventral and anterior views G–I left chelicera, anterior, lateral and posterior views J–L left palp, prolateral, dorsal and retrolateral views. Abbreviations: flp = flag-like process; rlp = ridge-like protuberance; stp = strong, tooth-like projection; vp = ventral projection. Scale bars: 0.4 mm (A–F); 0.1 mm (G–L).