Case-bearing Clothes Moth (larva)

Indoor environments, particularly in dark, undisturbed areas like closets, under furniture, or rugs

Keratin-rich items including wool, fur, silk, feathers, and lint; also consumes hair and dead skin cells

Larva constructs a portable silken case incorporating fibers from its environment and carries it while feeding; pupates inside the same case

Risk: Serious household pest that can damage carpets, clothing, and upholstery. Benefit: Negligible in human environments, though they act as natural recyclers of animal remains in the wild