Case-bearing Clothes Moth (larva)

Scientific Name: Tinea pellionella

Order & Family: Lepidoptera (Order), Tineidae (Family)

Size: Larvae can grow up to 10-15 mm (.4-.6 inches) in length. Adults have a wingspan of 9-16 mm (.35-.63 inches).

Case-bearing Clothes Moth (larva)

Natural Habitat

Indoors, especially in dark, undisturbed areas such as closets, attics, under furniture, or rugs, where host materials are present.

Diet & Feeding

The larvae feed on materials of animal origin, including wool, silk, fur, feathers, and keratin. They can also consume lint, dust, and food crumbs.

Behavior Patterns

Larvae develop in cracks and crevices, feeding on organic matter. They are generally slow-moving. Adults are short-lived and primarily focused on reproduction. They are typically nocturnal and avoid light.

Risks & Benefits

Risks: Can cause significant damage to fabrics, clothing, carpets, and other items made of natural fibers, leading to economic loss. They generally pose no direct health risk to humans. Benefits: None specifically for humans; in natural environments, they contribute to the decomposition of animal remains.

Identified on: 9/2/2025