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. Of the 4 eastern species, 3 have a wispy tail
of hairlike setae. Puss caterpillars are broadly polyphagous on shrubs and trees.