Black carpet beetle

The black carpet beetle, Attagenus unicolor, is a beetle, 3–5 millimetres (0.12–0.20 in) long, that can be a serious household pest. The larvae grow to 7 mm (0.28 in) in length, are reddish brown in colour and covered with bristles. The larval form feeds on natural fibres, damaging carpets, furniture and clothing.