Carpet beetle larvae are small, about 1/4??? long and carrot-shaped with long hairs. The larvae will feed on a wide variety of foods, including wool and cotton fabrics. Other foods include hair, leather, bird's nests and the foods that we eat. They will also feed on dust bunnies under furniture. The adult beetles are small, round and usually black in color, sometimes with lighter markings. Adult carpet beetles feed on the nectar in flowers so they don't do any damage beyond breeding indoors. If you have flowers blooming near your house, you will attract adult carpet beetles and may accidently bring some in the house with the flowers.