Puss caterpillars are often vested in long, downy setae, and like their kin the slug caterpillars, they can inflict a painful sting. Most of the caterpillar stings in the South can be attributed to flannel moth caterpillars. Once in hand, they can be distinguished from all other Lepidoptera in having 6 pairs of midabdominal prolegs, although the first and last pairs, on the second and seventh segments, lack crochets.
Puss caterpillars are broadly polyphagous on shrubs and trees.