Lintneria smithi is a species of moth in the family Sphingidae, the sphinx moths and hawk moths. It is known by the common name Smith's sphinx.[1] It is known from southern Arizona, southeastern New Mexico, and Sonora in northwestern Mexico.[1]
This moth has a thick, elongated body and a wingspan of about 9 centimeters. The larva is mottled white and grayish brown with a purple tinge.[1] [2]
This moth has only been recorded at three or four locations. Little is known about its life history.