Osmylus maoershanicola sp. n. a–e Male: a apex of the abdomen and genitalia, lateral view b genitalia, lateral view c genitalia, ventral view d mediuncus, lateral view e mediuncus, dorsal view f–g Female: f apex of the abdomen and genitalia g spermatheca, lateral view (spiracula omitted). Abbreviation: dp, dorsal process; aag, anterior arm of gonarcus.