Plaster Bagworm

Natural Habitat

Typically found indoors in dry, dusty areas such as garages, closets, under furniture, or on stucco walls. They are common in humid, warm climates like Florida.

Diet & Feeding

Larvae feed on detritus, including spider webs, dust, lint, wool, and occasionally dead insects.

Behavior Patterns

The larva constructs a flattened, pumpkin-seed-shaped case made of silk and camouflaged with sand, dust, and debris. It drags this protective case around with it as it moves up walls or across floors. The moth itself is rarely seen compared to the larva.

Risks & Benefits

Generally harmless to humans and pets; they do not bite or sting. They are considered minor household pests because their presence can be unsightly, and they may feed on woolen fabrics or rugs, though damage is usually minimal compared to clothes moths.

Identified on: 3/5/2026