Case-bearing Clothes Moth

Scientific Name: Tinea pellionella

Order & Family: Lepidoptera, Tineidae

Size: Larvae up to 1/2 inch (1.2 cm), Adults 1/4 to 1/2 inch (0.6 to 1.2 cm) wingspan.

Case-bearing Clothes Moth

Natural Habitat

Indoors, particularly in dark, undisturbed areas like closets, attics, and storage spaces, where they can find natural fibers.

Diet & Feeding

Larvae feed primarily on natural fibers containing keratin, such as wool, fur, silk, felt, feathers, and sometimes synthetic blends and even fortified foods.

Behavior Patterns

The larva builds a silk case around itself, incorporating bits of the material it is feeding on, which it carries everywhere it goes. It only pokes its head and legs out to move or feed. Adults are weak fliers and prefer to crawl or make short, darting flights. They are attracted to light but typically stay in darker areas within a home.

Risks & Benefits

Risk: Major pantry and textile pest, causing significant damage to clothing, carpets, upholstery, and stored food items. No known benefits, as they are primarily destructive pests in human environments.

Identified on: 10/30/2025