The Flannel Moths are members of the Superfamily Zygaenoidea. These are medium-sized moths with stout, hairy bodies. Eleven species are found in North America. Wings are typically broad with some wrinkled hair-scales on the forewing, and they are usually white, yellow, or brownish, with almost no markings. The wingspan is 2.4-4 cm. Larvae have stinging hairs hidden among tufts of dense, soft hairs.