Violovich 1967. New Palaearctic species of the genus Syrphus Fabr. (Diptera: Syrphidae) from Tuva. Cherepanov, A. I.[Ed]. New and little-known species of Siberian fauna., New and little-known species of Siberian fauna. Institute of Biology, Academy of Sciences of the USSR Siberian Branch, Novosibirsk, 1965., 1967: pp. 7-13. Chapter pagination: pp. 7-13