- Young larvae gregariously (in groups) skeletonize leaves, i.e. eat the leaf tissue between the veins so that it appears lace-like
- Older larvae are solitary and feed along leaf margins, eventually eating entire leaves, except the petioles
- Orange yellow rectangular spot behind its head; can be colored either black with orange yellow stripes or orange yellow with red orange stripes; black head; fine white hairs over entire body
- Lifts head and tail into a "U"
- Feeding occurs July into September
- More information on Yellownecked caterpillar...