Northern Prairie Wildlife Research Center
Green with thin white or yellow stripes and numerous minute white spots. Head sea green, shiny. Middorsal stripe thin, with white spot to either side; subdorsal thickened, white; supraspiracular very faint and broken; and spiracular and subspiracular thin, creamy. Food: many broadleaf trees and shrubs. Caterpillar: April to June; 1 generation.