Plaster Bagworm

Indoor environments with high humidity, typically found on walls, undersides of furniture, and baseboards.

Larvae feed on spider webs and natural fibers, including wool, hair, and silk, as well as organic dust.

The larva constructs a protective silk case covered in sand, dust, and debris. It is open at both ends, allowing the larva to feed from either side and drag the 'bag' across surfaces.

Generally considered a nuisance pest. While they can occasionally damage silk or wool fabrics, they are primarily scavengers of old spider webs and do not bite or sting humans.