Casemaking clothes moth (larva case)

Scientific Name: Tinea pellionella

Order & Family: Order: Lepidoptera, Family: Tineidae

Size: 5 mm to 10 mm (larval case length)

Casemaking clothes moth (larva case)

Natural Habitat

Found globally in indoor environments, specifically in closets, storage chests, and areas with natural fibers.

Diet & Feeding

Larvae feed on animal-based fibers including wool, fur, feathers, silk, and felt. They do not eat synthetic fabrics unless blended with natural fibers.

Behavior Patterns

The larva constructs a silken portable case which it incorporates fragments of its food source into. It carries this case as it feeds and eventually pupates within it. They prefer dark, undisturbed areas.

Risks & Benefits

Potential risk for significant damage to clothing, upholstery, and carpets. They provide no direct benefit to humans and are considered a common household pest.

Identified on: 7/1/2026