Plaster Bagworm

Natural Habitat

Commonly found in households, particularly in warm, humid climates, often seen on walls, ceilings, and under furniture.

Diet & Feeding

Larvae feed on spider webs, wool, hair, and many natural fibers, as well as dead insects.

Behavior Patterns

The larva builds a flattened, spindle-shaped case from silk and debris (like dust and sand) that it carries for protection. It can protrude from either end of the case to feed or move.

Risks & Benefits

They are considered minor household pests because they can damage silk or wool fabrics. They are not harmful to humans or pets and play a small role in the ecosystem by consuming detritus.

Identified on: 12/31/2025