Household Casebearer

Natural Habitat

Found inside homes, particularly in bathrooms, kitchens, and garages. They often hide on walls near floorboards or under furniture.

Diet & Feeding

Larvae feed on spider webs, wool, fur, hair, and various types of organic debris found in household dust.

Behavior Patterns

The larva builds a flattened, spindle-shaped protective case out of silk and debris. It can poke its head out from either end of the case to move or feed. The life cycle includes egg, larva, pupa, and adult moth stages.

Risks & Benefits

They are considered a minor domestic pest. While they do not bite or sting, they can cause damage to natural fiber textiles, clothing, and rugs made of wool or silk.

Identified on: 1/3/2026