Trilacuna zayu sp. nov., male left palp A–C (light) and D–K (SEM) A, D prolateral view B, E dorsal view C, F retrolateral view G bulb, prolateral view H, I, K distal part of bulb, dorsal, prolateral and retrolateral views J detail of bulb, prolateral view. Abbreviations: bls = belt-like structure; cbs = cluster of bristle-like structure; lb = lateral branch; mb = median branch. Scale bars: 0.1 mm (A–G); 0.05 mm (H–K).