Household Casebearer (often confused with Plaster Bagworm)

Typically found indoors in climate-controlled environments like homes, garages, and closets, particularly in humid regions. They are often seen on stucco walls, under furniture, or in corners where dust accumulates.

They feed on old spider webs (contains insect remains), wool, hair, lint, and other keratin-based fibers found in household dust.

The larva constructs a flattened, pumpkin-seed-shaped protective case made of silk and camouflaged with sand, soil, lint, and debris. It drags this case along as it moves. The larva has openings at both ends of the case, allowing it to turn around inside and feed from either end without leaving its protection.

Risks: Generally considered a harmless nuisance rather than a major pest. They do not bite or sting. However, in large numbers, they can cause minor damage to woolens or carpets. Benefits: Minimal, though they do consume old spider webs and dust bunnies.