Forewing is pale brownish gray with wavy black and white lines and a black-outlined white cell spot. Hindwing is gray with diffuse darker bands.
Some individuals are very dark, almost black, and others are light yellowish brown.
A variety of forested and open habitats. G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery. A field guide to the moths of eastern North America. Fernald, D. H. 1886. The Sphingidae of New England.