Females fertilized eggs in early summer. In warmer states, two broods are produced each year (a second wave in August) with late season pupae overwintering inside cracks of logs. Cooler states and provinces produce one generation a year. The caterpillar has orange bands at each foot segmentation. Between the orange bands, the fleshy body is white with thin black lines. Black dots interrupt the black lines and are raised to points on the orange parts of the body. Thin white whiskers sparsely extend from head to the rear. They feed on the leaves of various vine plants including grapevines, peppervines and creepers. Adults are believed to drink nectar from a variety of flowering plants.