Carpet Beetle Larva (Specifically, the molted skin or 'exuviae')
Scientific Name: Anthrenus verbasci (typically)
Order & Family: Order: Coleoptera, Family: Dermestidae
Size: Larvae grow from about 1mm to 4-5mm in length. The circular object pictured is likely a shed skin or a curled-up larva, roughly 2-4mm in diameter.
Natural Habitat
Indoor environments, particularly in dark, undisturbed areas like closets, under furniture, in carpets, woolens, stored clothing, and pantries.
Diet & Feeding
The larvae feed on keratin-based animal products: wool, fur, silk, felt, feathers, pet hair, dead insects, and sometimes stored dry food products.
Behavior Patterns
Larvae prefer dark places and are responsible for the damage associated with carpet beetles. As they grow, they molt their skins several times, leaving behind weak, shell-like casings (often what is mistaken for the live bug). They are photophobic (avoid light).
Risks & Benefits
Risks: They are a common household pest that can destroy expensive fabrics, rugs, and clothing. The tiny hairs on the larvae (hastisetae) can cause skin irritation or allergic dermatitis in some people. Benefits: In nature, they act as decomposers of dead animal matter.
Identified on: 3/1/2026