Males and females differ. At night, females lay rows of 4-10 eggs on the upperside of host plant leaves.
Young caterpillars feed together while older caterpillars are solitary.
A caterpillar ready to pupate strengthens a leaf petiole with silk and then spins its cocoon inside the curled leaf. The cocoon hangs from the host plant throughout the winter. G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery. A field guide to the moths of eastern North America. Ferguson, D. C. in Dominick, R. B. et al. 1972.