Household Casebearer (often specifically the Plaster Bagworm or Case-bearing Clothes Moth larva)

Typically found indoors in dry, dusty areas of homes, particularly on walls, baseboards, carpets, and inside closets. They thrive in high humidity.

Detritivores. They feed on old spider webs, wool, hair, lint, dead insects, and dried animal products. The Plaster Bagworm is particularly known for feeding on spider webs.

The larva constructs a distinctive flattened, pumpkin-seed or spindle-shaped case made of silk and debris (sand, dust, lint) which it carries around for protection. It can emerge from either end of the case to move or feed.

Generally considered a nuisance pest rather than a major threat. They do not bite or sting humans. However, damage can occur to woolens, rugs, and natural fibers if infestations are large.