Northern Prairie Wildlife Research Center
Charcoal body densely vested with white, downy hair of 2 lengths. Thin stripes variably expressed: middorsal and 2 subdorsal stripes often absent in last instar, most individuals with broken subspiracular line. Prolegs often reddened. Occasionally reported as a pest. Food: many trees and shrubs, but especially hickories and walnuts. Caterpillar: May to September; up to 3 generations in South; 1 in North.