Eumorpha achemon (Achemon sphinx) is a moth of the family Sphingidae. It is native to North America, where it is known from most of the United States, southern Canada, and northern Mexico. It is rare or absent in the Pacific Northwest, Great Basin, and Southeastern United States except Florida. The wingspan is 87–97 mm. It can be distinguished from all other Eumorpha species by the hindwing upperside being almost uniformly pale pink from the base to the diffuse, dark brown submarginal band.