Synonymized with Pholus satellitia as a subspecies by Barnes & Benjamin, 1927, Bull. Southern Calif. Acad. Sci.26: 39. Synonymized with Eumorpha pandorus by Hodges, 1971, in Dominick et al., Moths Amer. N. of Mexico21: 124. Reinstated as a species and transferred to Eumorpha by Brou, 1981, J. Lepid. Soc.34: 302. Erroneously resynonymized with Eumorpha pandorus by Carcasson & Heppner, 1996, Atlas Neotrop. Lepid.4B: 57. Reinstated as a species by Kitching & Cadiou, 2000, Hawkmoths of the world: 45.