Case-bearing clothes moth (larva)
Scientific Name: Tinea pellionella
Order & Family: Lepidoptera: Tineidae
Size: Case typically 8–10 mm in length; larva inside is slightly smaller.

Natural Habitat
Indoors, primarily in closets, drawers, and storage areas where there are natural animal fibers.
Diet & Feeding
Keratin-rich materials including wool, silk, fur, feathers, hair, and some synthetic blends containing organic matter.
Behavior Patterns
The larva builds a silk-lined protective case using debris and fibers from its food source, which it carries around as it feeds. It undergoes complete metamorphosis, eventually pupating inside the case.
Risks & Benefits
Risk: Serious domestic pest that causes permanent damage to clothing, upholstery, and carpets. Benefit: Provides no significant benefit to indoor human environments; in nature, they help break down animal remains.
Identified on: 1/7/2026