Household Casebearer (often referred to as Plaster Bagworm)

Typically found indoors in warm, humid climates. They attach to walls, baseboards, and under furniture, particularly in areas with collected dust or spiderwebs.

Detritivores. They feed on old spider webs, wool, hair, lint, dead insects, and other natural fibers found in household dust.

The larva constructs a flattened, pumpkin-seed-shaped protective case out of silk and potential debris (sand, soil, fibers), which it carries around. The larva can turn around inside the case to feed from either end. It drags this 'home' along walls and floors.

Generally harmless to humans (they do not bite or sting). However, they can be a minor pest if they feed on woolen clothing, rugs, or fabrics. They are often considered a nuisance due to their unsightly cases on walls.