Case-bearing clothes moth larva

Natural Habitat

Indoor environments, particularly in dark, undisturbed areas like closets, under furniture, and in storage bins containing natural fibers.

Diet & Feeding

Keratin-rich materials including wool, silk, fur, feathers, hair, and leather. They may also consume dead insects or stored pantry goods.

Behavior Patterns

Larvae construct a portable cylindrical case made of silk and debris (like carpet fibers). They carry this shell with them as they move, extending their head and legs to feed and retreating inside when threatened.

Risks & Benefits

They are a significant domestic pest, causing irreversible damage to carpets, clothing, upholstery, and heirlooms. They provide no significant benefits to human environments.

Identified on: 3/13/2026