Taxonomic review of the Strongylophthalmyia ustulata group (Diptera: Brachycera: Strongylophthalmyiidae) from China, with the descriptions of three new species.

The Strongylophthalmyia ustulata group (Diptera: Brachycera: Strongylophthalmyiidae) from China is revised. Five species are recognized, including three new species (S. elongata sp. nov., S. flavimarginata sp. nov., and S. sivelli sp. nov.) and one new record species [S. ustulata (Zetterstedt, 1847)]. Strongylophthalmyia yaoshana Yang & Wang, 1998, previously placed in the S. ustulata group, is herein transferred to the S. fascipennis group based on its bare antennal arista and patterned wing. A key to the Chinese species of the S. ustulata group is provided.