Bug Identifier
Household Casebearer
Community identification

Household Casebearer

Phereoeca uterella

Order & Family
Lepidoptera: Tineidae
Size
Case length: 8-14 mm; Caterpillar: smaller inside.
See this bug in the Encyclopedia

Natural Habitat

Indoor environments, particularly in humid climates, often found on walls or around cobwebs.

Diet & Feeding

Dead insects, spider webs, and natural fibers such as wool, hair, and silk.

Behavior Patterns

The larva constructs a protective silk case covered in sand, dust, and debris. It can poke its head out from either end of the case to move and feed.

Risks & Benefits

Generally harmless to humans but can be a pest by feeding on natural fiber clothing, upholstery, or rugs.