This moth is closely related to the Household Casebearer, which is discussed separately and which is a distinct species. It is often confused with the Casemaking Clothes moth because the larvae of both moths as well as the Household casebearer will create a small silk “case” for itself, camouflaged with debris from its local environment, and drag this case about as it wanders. Females deposit up to 200 eggs, cementing them to surfaces and on debris where larvae may find food. The larva immediately creates its silk case and it is a very active stage, wandering in search of food. While they are not well known it is likely they feed on detritus and bits of organic debris found within structures, but they also will feed on wool materials when they find them. Large numbers also have been found feeding on the growth of mycelia of decay fungi on structural wood. A complete life cycle from egg to adult moth requires about 2.5 months.
It is necessary to find the infested materials in order to eliminate this pest. The larvae will be feeding in a protected place where insecticides will not be likely to contact them, so discovery of the source and disposal or treatment of it are needed. The larvae may also be vacuumed when found wandering in the general environment.