On Jan 20, 2007, DiOhio from Corning, OH (Zone 6a) wrote:
WARNING: The larvae to this moth have very plush fuzzy hair but underneath are little worts with stinging spines.
These caterpillars can be distinguished from all other Lepidoptera in having 6 pairs of midabdominal prolegs.
Early instar caterpillars have very long swirling pale hair, much different from later instar caterpillars.
Host plants include alder, apple, birches, blackberry, Myrica species, oaks, poplars, Prunus species, sassafras, willows, and other trees and shrubs.
Two or more generations in the south, one generation in the north.