Household Casebearer

Typically found inside residential buildings, often on walls, ceilings, and in corners with high humidity.

Larvae feed on spider webs and natural fibers like wool, hair, and fur. They also consume organic debris and lint.

The larva builds a flattened, spindle-shaped silk case covered in sand, dust, and spider webs for protection. It can move by poking its head out from either end of the case.

They are considered minor household pests because they can damage woolen clothing or carpets. They do not bite or pose a direct health risk to humans.