J. F.  McAlpine, ?A revised classification of the Piophilidae, including 'Neottiophilidae' and 'Thyreophoridae' (Diptera: Schizophora)?, Memoirs of the Entomological Society of Canada, vol. 103, pp. 1-66, 1977.

H.  Andersson, ?Taxonomic and phylogenetic studies on Chloropidae (Diptera) with special reference to Old World genera?, Entomologica scandinavica, Supplements, vol. 8, pp. 1-200, 1977.