A taxonomic study of Psyllaephagus Ashmead (Hymenoptera, Encyrtidae) from China.

Fifteen species of Psyllaephagus from China are studied. Three species, P.clavus Zou & Zhang, sp. nov. , P.obliquus Zou & Zhang, sp. nov. , and P.tangae Zou & Zhang, sp. nov. , are described as new to science. A diagnosis or a description/redescription, figures of the characters, as well as the known distribution and hosts of each species are provided. A dichotomous key is also given to facilitate the identification of species.