Trilacuna simianshansp. n., male. A habitus, dorsal view B habitus, ventral view C habitus, lateral view D prosoma, dorsal view E prosoma, ventral view F prosoma, lateral view G prosoma, anterior view. Abbreviations: ehb = elevated hair base; ldi = labium deep incision; sdb = slightly distal branch. Scale bars: 0.2 mm (A–C); 0.1 mm (D–G).