Household Casebearer
Scientific Name: Phereoeca uterella
Order & Family: Lepidoptera, Tineidae
Size: 8mm to 13mm in length

Natural Habitat
Commonly found inside residential homes, garages, and sheds, often on walls or under furniture.
Diet & Feeding
Larvae feed on spider webs, debris, and natural fibers such as wool, hair, and silk.
Behavior Patterns
The larva constructs a spindle-shaped silk case covered in dust, sand, and debris for protection; it can protrude its head from either end to move or feed.
Risks & Benefits
They are considered minor household pests as they may damage silk or woolen fabrics, but they do not pose a direct health risk to humans.
Identified on: 6/19/2026