R.  Frey, Enumeratio insectorum fenniae, vol. VI.Diptera. Helsingfors: Helsingfors Entomologiska Bytesförening, 1941, p. 63 pp.

W.  Hackman, ?A check list of the Finnish Diptera. II. Cyclorrhapha?, Notulae entomologicae, vol. 60, pp. 117-162, 1980.