Northern Prairie Wildlife Research Center
Brown with vague tan, pinkish, and black mottling, and swollen rounded rump. Head shiny reddish brown, darkened to either side of midline. Thoracic shield with thin middorsal stripe and often vague subdorsal stripes. Back of first thoracic and first 8 abdominal segments often with pale, elongate, middorsal spot which may be broken into 2 parts. Diffuse pale stripe running just above spiracles. May be confused with angle shades (Phlogophora species). Food: cherries and oaks and perhaps other trees. Caterpillar: May to June; 1 generation.