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

Natural Habitat
Found inside buildings, particularly in humid or damp areas like bathrooms and closets
Diet & Feeding
Larvae feed on spider webs, wool, hair, and various biological remains
Behavior Patterns
The larva builds a flattened, spindle-shaped protective case out of silk and dust/debris; it can emerge from either end to move or feed
Risks & Benefits
Generally considered a minor household pest; they do not bite humans but can cause damage to natural fiber textiles or fabrics
Identified on: 2/27/2026