Bug Identifier
Household Casebearer
Community identification

Household Casebearer

Phereoeca uterella

Order & Family
Order Lepidoptera; Family Tineidae
Size
Case length: 8–14 mm; Larva: up to 10 mm
See this bug in the Encyclopedia

Natural Habitat

Typically found inside houses, on walls, or under furniture. They prefer humid climates and architectural structures.

Diet & Feeding

Larvae scavenge for organic materials including spider webs, wool, hair, felt, and dead insect remains.

Behavior Patterns

Larvae construct a silk-lined, flattened, spindle-shaped case covered with sand or dust for protection. They can move by protruding their head and front legs from either end of the case.

Risks & Benefits

They are considered a minor domestic pest. Risks include cosmetic damage to natural fabrics and clothing. They do not pose a direct health risk to humans.