Ischnothyreus yunlong sp. n., paratype female A. habitus, dorsal view; B. prosoma, dorsal view; C. habitus, ventral view; D. prosoma, ventral view; E. habitus, lateral view; F. prosoma, lateral view; G. prosoma, anterior view; H. epigastric region, ventral view; I. endogyne, ventral view; J. endogyne, dorsal view. Abbreviations: a = apodemes, bse = bell-shaped sclerotised extension, wt = winding tube. Scale bars: 0.4 (A–F), 0.2 (G, H) and 0.1 (I, J).