Plaster Bagworm

Humid environments, often found inside homes on walls, floors, or in closets

Larvae feed on spider webs, wool, human hair, and silk fabrics

The larva constructs a protective flattened, pumpkin-seed-shaped case from silk and environmental debris, which it drags along as it moves.

Mostly a nuisance pest, though they can occasionally damage natural fabrics like wool or silk rugs and garments.