While rearranging our North American species of the genus Erebia in accordance with the recently published Monograph of the genus by B. C. S. Warren (1936) I was struck by the fact that in several instances our Canadian species had, especially as regards their areas of distribution, been treated in a rather superficial manner and with less of the thoroughness which marks the treatment of the balance of the species. This was probably due both to lack of material for study and of published distributional data; I offer therefore the following notes, based on the material in the Canadian National Collection, with a view to supplementing Warren's monumental work. The arrangement of species is that of the Monograph.