Carpet Beetle (specifically a Case-bearing Clothes Moth larva casing or Carpet Beetle debris)

Scientific Name: Tinea pellionella (Case-bearing Clothes Moth) or Anthrenus verbasci (Varied Carpet Beetle)

Order & Family: Lepidoptera: Tineidae (Moths) or Coleoptera: Dermestidae (Beetles)

Size: Larval case is typically 5-10 mm long.

Carpet Beetle (specifically a Case-bearing Clothes Moth larva casing or Carpet Beetle debris)

Natural Habitat

Found indoors, typically in dark, undisturbed areas such as closets, under carpets, in air ducts, or around baseboards where natural fibers accumulate.

Diet & Feeding

Larvae feed on keratin-rich materials, including wool, silk, fur, feathers, hair, lint, and sometimes stored food products.

Behavior Patterns

The larvae of the Case-bearing Clothes Moth carry a silken case around with them, which they camouflaged with fibers from their environment. Carpet beetles hide in cracks and crevices. They avoid light.

Risks & Benefits

Risks: Major textile pests; larvae can cause significant damage to clothing, carpets, upholstery, and taxidermy. They do not bite or sting humans, though some people may have allergic reactions to larval hairs. Benefits: In nature, they act as scavengers/decomposers of animal matter.

Identified on: 3/2/2026