In working over a collection of Diurnal Lepidoptera sent me by Mr. R. E. Hutchins of the Montana Agricultural College, Bozeman, Mont. for identification I came across a small series of a Euphydryas species which represents an apparently undescribed race or species belonging, according to genitalia, in the nubigena-taylori-editha complex. This group of so-called species, as I recently pointed out (1927, Canadian Entomologist, lix, 156) is distinguished genitalically by the reduced uncus and the shape of the harpe (op. cit. Pl. III, fig. I), these two organs being practically similar throughout the group.