Body is slightly rounded and they have a pattern of white, brown and yellow scales on the upper surface of their wing covers. Eggs are laid in various locations, where they hatch in 17 to 18 days. Larva molt 7 or 8 times over about 7 to 11 months. They are scavengers and feed on woolens, carpets, hides, feathers, horns, bone and insect pupae.