Epiglaea decliva, the Sloping Sallow Moth, is a moth of the Noctuidae family. It is found in North America, where it has been recorded from Quebec and Maine to South Carolina, west to Kansas and north to Alberta. The habitat consists of barrens, thickets, woodlots and forests. The larvae feed on the leaves of Malus, Prunus and Quercus species. They have a brown to reddish-brown body and a mottled black head. They reach a length of 50 mm when full-grown. The larvae can be found from May to July. The species overwinters as an egg.