Household Casebearer
Scientific Name: Phereoeca uterella
Order & Family: Order Lepidoptera, Family Tineidae
Size: Larval cases are typically 8 to 14 millimeters in length.

Natural Habitat
Found inside residential homes, specifically in bathrooms, bedrooms, and on walls in humid climates.
Diet & Feeding
The larvae feed on wool, silk, hair, and biological debris such as spider webs.
Behavior Patterns
The larva constructs a protective, spindle-shaped silken case covered in dust and sand. It can turn around inside the case to feed from either end. The adult is a small, inconspicuous moth.
Risks & Benefits
They are considered minor household pests because they can damage natural fibers and clothing. They pose no health risk to humans.
Identified on: 1/13/2026