Plaster Bagworm (or Household Casebearer)

Typically found indoors in warm, humid climates; often seen on stucco walls, under furniture, in garages, or on carpets and wool fabrics.

The larvae feed on silk, spider webs, wool, lint, hair, and other organic debris found in households.

The larva constructs a protective flat, pumpkin-seed-shaped case made of silk and camouflaged with sand, dust, and soil particles. It drags this case around as it feeds, retreating inside when threatened. It has a complete metamorphosis life cycle.

Generally harmless to humans (does not bite or sting). Considered a minor household pest because they can damage woolen fabrics, rugs, or clothing, though they primarily feed on spider webs and loose debris.