Very widespread and destructive pest of woolens, felts, upholstered furniture, clothes, etc. Case of larva is often conspicuous, as it may incorporate fibres of the material being attacked.
Immature form: Larva up to 10mm long when full grown. Creamy white with dark head. Usually protected in case made of silk and fibres of feeding material.
Adult: 7-10mm long. Forewings silvery-buff with 3 dark spots, sometimes indistinct. Wings fringed. Wingspan about 12mm.
Life cycle: 3-8 months.