Nephele argentifera is a moth of the family Sphingidae. It is known from coastal bush and savanna from Somalia to northern South Africa. The length of the forewings is 32–35 mm and the wingspan is 78–85 mm. The black lateral spots of the abdomen are large and well defined. The ground colour of the body and forewings is dark olive, usually fading to light ochreous brown. The forewings have a straight silvery-white subbasal band and a thick silvery-white postmedial band with the proximal margin evenly curved and the distal marginstraight. The stigma consists of a large silvery-white triangular spot. The hindwings are olive with a wide blackish margin.