Household Casebearer

Typically found indoors in humid climates, often on walls, ceilings, and under furniture.

Larvae feed on old spider webs, wool, hair, and silks (keratin-based materials).

The larva builds a flattened, spindle-shaped case from silk and debris, such as sand and dust. It can retreat into the case from either end, allowing it to move quickly and avoid predators.

Generally harmless to humans but considered a minor domestic pest as they can occasionally damage clothing or household textiles made of natural fibers.