Northern Prairie Wildlife Research Center
Very large, bright green, charcoal and brown, or pinkish with long, white hairlike setae. Dorsum of second and third thoracic segments with prominent spinulose horns. Spiracles white, rimmed with black or blue. Food: pines, oaks, maples, sweet gum, sassafras, and many others. Caterpillar: July to September; 1 generation.