Household Casebearer

Natural Habitat

Indoors within residential or commercial buildings, often found on walls or under furniture.

Diet & Feeding

Larvae feed on spider webs, wool, silk, hair, and other natural keratin-containing fibers.

Behavior Patterns

The larva constructs a protective silk case covered in sand or dust and drags it along as it moves. They undergo complete metamorphosis with a pupal stage spent inside the case.

Risks & Benefits

Generally harmless to humans but can be a minor household pest as they may damage silk or wool fabrics.

Identified on: 1/3/2026