Case-bearing Clothes Moth Larva (or similar Tineidae larva)
Scientific Name: Tinea pellionella (or other species within Tineidae)
Order & Family: Lepidoptera (Moths and Butterflies), Tineidae (Fungus and Clothes Moth family)
Size: Larvae typically 0.5 - 1.5 cm (0.2 - 0.6 inches) in length, adult moths are small, about 0.6 - 1.2 cm (0.25-0.5 inches) wingspan.
Natural Habitat
Indoors, especially in areas with natural fibers like wool, silk, fur, felt, and feathers. Can be found in closets, attics, storage areas, and under furniture.
Diet & Feeding
Keratin-containing materials, including wool, fur, feathers, silk, felt, upholstered furniture, and carpets. They can also feed on lint, dust, and human hair.
Behavior Patterns
Larvae construct a portable silken case incorporating fibers from their food source. They carry this case with them as they feed and grow. They are slow-moving and prefer dark, undisturbed areas. Adults are poor flyers and are often seen scurrying rather than flying. The larval stage is the damaging stage.
Risks & Benefits
Potential Risks: Significant damage to natural fiber textiles, clothing, carpets, and fur. Can cause considerable economic loss by destroying valuable items. They do not bite or sting humans. Potential Benefits: None known for humans; they are generally considered pests due to their destructive feeding habits.
Identified on: 11/29/2025