In the northern part of the insects range, larvae have a black head capsule, a yellowish or greenish body with a dark stripe down the back and long whitish hairs that arise from black and orange tubercles located along its sides. In the south, larvae have an orange or reddish head, a yellowish-tan body with orange to reddish tubercles and brownish hair. Larvae feed gregariously, forming large webs on tree branches. Immature larvae feed on the epidermis of both sides of the leaf, leaving the veins untouched.
Mature larvae consume the entire leaf, leaving only the petiole.
See HForest .