Casemaking Clothes Moth (larva)

Scientific Name: Tinea pellionella

Order & Family: Order Lepidoptera, Family Tineidae

Size: Case length typically 6 mm to 10 mm (1/4 to 3/8 inch); larva inside is slightly smaller.

Casemaking Clothes Moth (larva)

Natural Habitat

Indoor environments, particularly in closets, drawers, or storage areas where animal-based fibers are present; also found in bird nests.

Diet & Feeding

Larvae feed on keratin-containing materials such as wool, feathers, fur, hair, upholstered furniture, and silk. They do not eat synthetic fabrics unless blended with natural fibers.

Behavior Patterns

Larvae construct a portable silken case incorporating debris and fibers from their food source. They carry this case as they move and feed, eventually pupating within it. Unlike webbing clothes moths, they rarely leave silk trails.

Risks & Benefits

Significant household pest capable of damaging expensive clothing, rugs, and heirlooms. Do not bite humans or pets. Beneficial in nature as decomposers of animal remains like fur and feathers.

Identified on: 4/13/2026