Case-bearing Clothes Moth (larva)

Natural Habitat

Typically found indoors in closets, carpets, dark corners, and cracks in floors; prefers humid environments where natural fibers are stored.

Diet & Feeding

The larvae feed on keratin-rich animal fibers such as wool, fur, silk, leather, feathers, and occasionally detritus like human hair or pet dander found in dust.

Behavior Patterns

The larva builds and lives inside a portable tube-like case made of silk and fibers from the material it is feeding on. It drags this case around as it moves and will retreat inside if disturbed. They prefer darkness and are rarely seen in well-lit areas.

Risks & Benefits

Risks: Considered a household pest; the larvae can cause significant damage to clothing, carpets, upholstery, and tapestries made of natural fibers. Benefits: No significant benefits to humans or indoor ecosystems, though they function as decomposers in nature.

Identified on: 2/13/2026