Trilacuna cangshan sp. nov., left male palp A–F (light) and right male palp G–L (SEM, images flipped horizontally) A, G prolateral view B, H dorsal view C, I retrolateral view D, J distal part of bulb, prolateral view E, K distal part of bulb, dorsal view F, L distal part of bulb, retrolateral view. Abbreviations: blp = basal leaf-shaped projection; bth = basal thin “hairs”; dth = distal thick “hairs”; lcb = lateral curved branch; lh = lateral “hairs”; lmb = long median branch; vbl = ventral broad lobes. Scale bars: 0.2 mm (A–C, G–I); 0.02 mm (D–F, J–L).