Household Casebearer
Scientific Name: Phereoeca uterella
Order & Family: Lepidoptera: Tineidae
Size: 8 to 13 mm long
Natural Habitat
Indoor environments, particularly on walls in humid climates
Diet & Feeding
Larvae feed on wool, silk, hair, and biological detritus like spider webs
Behavior Patterns
The larva constructs a protective silken case covered in sand, dust, and lint, which it carries while crawling
Risks & Benefits
Occasional household pest that can damage clothing and natural fibers, but poses no direct health risk to humans
Identified on: 1/12/2026