Northern Prairie Wildlife Research Center
Similar to spiny oakworm but with broad subdorsal and subspiracular pink to red stripes, finely speckled with white. Head orange-brown. Second thoracic segment with long, black spinulose horns. Abdominal spines shorter than those of spiny oakworm. Gregarious in early instars, then solitary. Two other oakworm species with similar caterpillars occur in the South. Food: various hardwoods but strongly favors oaks, especially red and black oaks. Caterpillar: April to October; up to 3 generations in Florida, 1 in North.