Caterpillars covered with horns or spines, with some being thinly hairy. The horns or spines on the front part of the body are long and usually curved. There are two noticeable, slender horns on the front part of the body and two rows of short spines on each side of the body with four larger spines at the end of the body. Found on tree 18. The full grown caterpillar, about 2 inches long, is black with eight orange-yellow stripes running the entire length of the body, and a pair of black, slender, stiff recurved spines on the front part of the body.
Young caterpillars occur in groups.
The full grown caterpillars, about 2 inches long are greenish to brownish yellow with six rose colored stripes running the entire body length. Two slightly curved and conspicuous spines occur on the front of the body. Caterpillars usually occur singly, although some are nest builders. When disturbed, the caterpillars often hold their ends erect and remain attached by the four pairs of legs at the middle of the body. The full grown caterpillars, about 2 inches, are moderately clothed with long soft, white hairs.