Household Casebearer (Plaster Bagworm)

Natural Habitat

Indoor environments, particularly on walls in humid climates, closets, and under furniture.

Diet & Feeding

Larvae feed on spider webs, wool, hair, and silk, as well as dead insects.

Behavior Patterns

The larva constructs a protective silk case flattened like a pumpkin seed, camouflaged with sand, dust, and lint. It can poke its head out from either end to move or feed.

Risks & Benefits

Harmless to humans but considered a household pest as they can damage natural fiber clothing, rugs, and fabrics.

Identified on: 6/9/2026