The following stucly is based on the material in the Canadian National Collection supplemented by specimens from the collections of Messrs. Carl G. Siepmann, F. S. Carr, and G. Stace Smith. No new characters for the separation of closely allied species are offered in this paper. The most valuable characters known are those of the so-called flagellum of the male genitalia; the most useful for key purposes are presented by the elytral markings.