Carpet Beetles: Identification and Control

Carpet beetles are common household pests known for their ability to cause damage to various materials, such as carpets, fabrics, and stored food items. This page serves as a guide to help you identify carpet beetles, understand their behavior, and explore effective methods for their extermination.

Carpet Beetle

What are Carpet Beetles?

Carpet beetles belong to the order Coleoptera and are part of the family Dermestidae. These small, oval-shaped insects are typically 2-5 millimeters long as adults. They are known for their vibrant colors, which may vary from species to species. Carpet beetles are attracted to natural fibers and can infest carpets, upholstery, clothing, and stored food products.

Identifying Carpet Beetles

The most common species of carpet beetles are the varied carpet beetle (Anthrenus verbasci) and the black carpet beetle (Attagenus unicolor). Here are some key characteristics to help identify them:

  • Varied Carpet Beetle: The adult beetles have a distinctive pattern of yellow, white, and dark-brown or black scales on their back. They are approximately 2-3 millimeters long and have rounded shapes.
  • Black Carpet Beetle: These are solid black and slightly larger than the varied carpet beetle, measuring around 3-5 millimeters. They have a more elongated shape compared to the rounded varied carpet beetles.

Life Cycle of Carpet Beetles

Carpet beetles undergo complete metamorphosis, which includes four distinct stages:

  • Eggs: Carpet beetle eggs are small and usually laid in hidden areas, such as cracks, crevices, or underneath furniture. They hatch within one to two weeks.
  • Larvae: The larvae are the most destructive stage of carpet beetles. They are bristly and feed on various materials, including wool, fur, feathers, and dead insects. The larvae undergo several molts before entering the pupal stage.
  • Pupae: The pupal stage is a non-feeding phase where the larvae transform into adult beetles. Pupae can be found in secluded areas like wall voids or inside cracks.
  • Adults: Once the pupal stage is complete, adult carpet beetles emerge and seek mates to continue the life cycle.

Damage Caused by Carpet Beetles

Carpet beetles can cause significant damage to household items, particularly those made of natural fibers. Their larvae feed on carpets, rugs, upholstery, clothing, blankets, and other fabric-based materials. They can also infest stored food products, including grains, cereals, and pet food. Signs of infestation include irregular holes in fabrics, shedding of fibers, and the presence of adult beetles or larvae in infested areas.

Extermination Techniques for Carpet Beetles

Effective control and elimination of carpet beetles involve the following measures:

  • Thorough Cleaning: Regularly vacuum carpets, rugs, and upholstery to remove larvae, eggs, and adult beetles. Pay close attention to hidden areas, such as under furniture and along baseboards.
  • Laundering and Freezing: Wash infested clothing, bedding, and fabrics in hot water or place them in a freezer for a few days to kill larvae and eggs.
  • Insecticide Treatment: Professional pest control services may be necessary in severe infestations. To eliminate carpet beetles, they can apply appropriate insecticides to targeted areas, such as cracks, crevices, and carpet edges.


If you have a persistent carpet beetle infestation or require professional assistance, contact our expert extermination service today. Our experienced team will assess the situation and provide effective solutions to eradicate carpet beetles from your home.