Household Casebearer

Natural Habitat

Typically found inside houses, on walls, or under furniture in warm, humid climates.

Diet & Feeding

Larvae feed on spider webs and organic fibers such as wool, hair, and some synthetic materials.

Behavior Patterns

The larva builds a flattened, spindle-shaped silken case covered in sand or dust. It can poke its head out of either end of the case to crawl or feed.

Risks & Benefits

They are considered a minor household pest because they can damage silk or wool fabrics. They are not harmful to humans or pets.

Identified on: 1/2/2026