Bug Identifier
Household Casebearer Moth (larva)
Community identification

Household Casebearer Moth (larva)

Phereoeca uterella

Order & Family
Lepidoptera, Tineidae
Size
Larvae can grow up to 10-15 mm (0.4-0.6 inches) in length, while their cases are typically 10-20 mm (0.4-0.8 inches) long.
See this bug in the Encyclopedia

Natural Habitat

Commonly found in human dwellings, particularly in undisturbed areas like closets, attics, storage rooms, and under furniture. They prefer dark, damp environments.

Diet & Feeding

Larvae are scavengers and feed on a variety of organic materials, including wool, hair, silk, lint, and other detritus. They are known to infest carpets, clothing, and stored natural items.

Behavior Patterns

Larvae construct a case from silk and debris, which they carry around for protection. They develop through several instars within this case before pupating inside it. Adults are typically short-lived and may not feed.

Risks & Benefits

Potential risks include damage to natural fibers (wool, silk, fur) in clothing, carpets, and upholstery. They are considered household pests. There are no notable benefits.