Plaster Bagworm

Indoor environments, often found on walls in garages, bathrooms, and kitchens, particularly in humid climates.

Larvae feed on spider webs, wool, human hair, and silk fibers.

The larva constructs a protective silk case covered in sand, dust, or hair. It can turn around inside the case and protrude from either end to feed or move.

Generally harmless to humans but can be a minor household pest if they eat valuable silk or wool fabrics. They are efficient scavengers of spider webs.