The identity of Scotogramma oregonica Grote has always been a matter of some doubt to taxonomists. Smith gave his idea of the species in a paper entitled “Notes on Mamestra trifolii Rott. and Its Allies” (1910, Ent. News, XXI, 357); Wolley-Dod (1913, Can. Ent., XLV, 31) surmises a mixture of species in Grote's type lot of material and states that the male type in the Neumoegen Collection at Brooklyn (now incorporated in the U. S. Natioonal Museum) is the same as Smith's morana (op. cit., p. 361) ; following Dod morana was made a variety of oregonica in the 1917 Barnes and McDunnough Check List.