New adults are emerging by early June. Several other generations occur during the summer and fall but seldom cause much damage. There appear to be three or four generations per year in Oklahoma. There are six large black spots, which tend to run together, on each wingcover. The thorax is black with broad, red orange outer margins.
Mature larvae are gray with several rows of black spots running down the body.
The head and legs are black. Small larvae are entirely black. Ornamental and Lawn Pest Control .