Northern Prairie Wildlife Research Center
Red- to purple-brown with thin, interrupted middorsal, subdorsal, and supraspiracular stripes that may be obscure in some individuals. Head orange-brown and mottled; patterning absent along sides where band would be continued onto head. Spiracles on first and last segment along edge of broad creamy spiracular stripe, others positioned within stripe. Food: many forest shrubs and trees. Caterpillar: May to June; 1 generation.