Revision of the genus Heterosmylus Krüger, 1913 from China (Neuroptera, Osmylidae)

: A new species of osmylid (Heterosmylus processussp. n.) is described and the other species in the genus from mainland China are redescribed. Heterosmylus zhamanus Yang, 1987, syn. n. is identified as a junior synonym of Heterosmylus yunnanus Yang, 1986. A key is provided to differentiate Palaearctic and Oriental species of Heterosmylus.