Household Casebearer (Plaster Bagworm)

Indoor environments, particularly on walls in humid, tropical and subtropical climates.

Larvae feed on spider webs, wool, hair, and organic debris found in household 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 move on vertical surfaces.

Generally considered a minor household pest. While they can damage fabrics like silk or wool, they primarily scavenge organic debris and pose no direct health risk to humans.