T.  Becker, ?Dipterologische Studien. III. Lonchaeidae.?,  Entomologische Zeitschrift, vol. 40, pp. 313-344, 1895.

J. F.  McAlpine, ?Identities of Lonchaeid Flies described by Zetterstedt, with notes on Related Species (Diptera).?, The Canadian Entomologist, vol. 90, pp. 402 - 418, 1958.