G. H.  Verrall, ?Catalogue of the Platypezidae, Pipunculidae and Syrphidae of the European District with references and synonymy?, British Flies, vol. 7, p. 121, 1900.

G. H.  Verrall, ?A list of British Diptera?, p. 47 pp., 1901.

G. H.  Verrall, ?Platypezidae, Pipunculidae and Syrphidae of Great Britain?, British Flies, vol. 8, pp. 1-691, 1901.

G. H.  Verrall, ?Another hundred new British species of Diptera?, The Entomologist's monthly Magazine, vol. 48, pp. 190-197, 1912.