Household Casebearer (often specifically the Plaster Bagworm or Case-bearing Clothes Moth larva)

Natural Habitat

Commonly found indoors on walls, in closets, garages, and underneath furniture. They thrive in humid environments.

Diet & Feeding

Detritivores feeding on organic matter like spider webs, wool, hair, lint, dead insects, and discarded exoskeletons.

Behavior Patterns

The larva constructs a distinctive flattened, pumpkin-seed-shaped protective case out of silk and debris (sand, dust, lint). It drags this case around as it moves and can retreat inside if threatened.

Risks & Benefits

Generally harmless to humans (non-biting, non-venomous). Considered a minor household pest because they can damage fabrics, wool, and carpets, but are often just a nuisance of accumulated dust and lint.

Identified on: 3/6/2026