Mutin 1987. [New information on Xylota and Chalcosyrphus Curr. (Diptera, Syrphidae).] Kapustina, O.G.Taksonomiia nasekomykh Sibiri i Dal'nego Vostoka SSSR. Taxonomy of the insects of Siberia and Soviet Far East., 'AN SSSR', Vladivostok, 1987: 34-36, 129. Chapter pagination: 102-106, 131