Heterocampa umbrata (Wlk.)
Male melanic specimen
Identification Covell, Moths of Eastern North America, Page 333. Forewing is mottled gray, whitish, brown, and dark green with black lines. The ante-median line is farther from the base and not bent in the middle like the Mottled Prominent. Look for a white blotch toward the apex, with black reniform crescent at the inner edge and a series of black wedges beyond.
The melanic specimens have forewings that are almost uniform black. The hindwing is white with blackish veins and shading. Caterpillar host plants are oaks. Melanic is an individual of a species that has unusually dark coloration (sometimes solid black). May recur offten enough to be referred to as a form.)