Northern Prairie Wildlife Research Center
Wingspan 4.5 cm. Forewing is a mottled brown and pale gray with a small pale reniform spot, narrow dentate basal and postmedian lines, and black marginal dashes; hindwing is white in males and brown in females. This notodontid is common and widely distributed in western North America. Moths fly from late spring to late summer. Caterpillars are generalist feeders on the foliage of flowering trees and shrubs such as cherry (Prunus), oak (Quercus), apple (Malus), maple (Acer), and alder (Alnus), and are occasional pests in orchards.