Plaster bagworm

Natural Habitat

Found inside residential homes and buildings, typically on walls, tiles, or ceilings in humid environments.

Diet & Feeding

The larvae feed on spider webs, wool, human hair, shed skin, and silk fibers.

Behavior Patterns

The larva constructs a protective silk case covered in sand, dust, and lint. It can drag this case along walls and can emerge from either end to feed.

Risks & Benefits

They are considered household pests because they can damage natural fiber fabrics and carpets. They do not bite or sting humans and pose no direct health risk.

Identified on: 2/3/2026