Household Casebearer

Found inside homes, particularly in bathrooms, kitchens, and garages. They prefer humid environments and are often found on light-colored walls.

Larvae feed on spider webs, wool, human hair, fur, and dead insect remains. They are primarily scavengers of keratin and silk.

The larva builds a flattened, spindle-shaped case from silk and environmental debris (dust, hair, sand). It can protract its head from either end of the case to feed or move. After several molts, it pupates inside the case attached to a vertical surface.

They are considered a minor domestic pest. While they can damage fabrics made of wool or silk, they primarily act as scavengers of household dust and spider webs. They pose no direct health risk to humans.