Case-bearing Clothes Moth (Larva)
Scientific Name: Tinea pellionella
Order & Family: Order: Lepidoptera, Family: Tineidae
Size: Larval case is typically 5-10 mm long.

Natural Habitat
Typically found indoors in dark, undisturbed areas such as closets, basements, and attics, often on carpets, wool clothing, or upholstered furniture.
Diet & Feeding
Feeds on natural fibers of animal origin including wool, fur, silk, feathers, felt, and leather. Can also feed on pet hair and synthetic fibers blended with natural ones.
Behavior Patterns
The larva constructs a portable, silken tube-like case around itself, often incorporating debris and fibers from its environment (which helps camouflage it). It drags this case around as it feeds and will retreat inside when disturbed.
Risks & Benefits
Risks: Does not bite or sting humans, but is a significant household pest that causes damage to clothing, rugs, and natural fiber textiles. Benefits: In nature, they help break down keratin-rich animal remains, but have no direct benefit in a household setting.
Identified on: 2/28/2026