Pest Library
Varied Carpet Beetle
Carpet beetles are small mottled beetles whose bristly, carrot-shaped larvae are one of the most common bed bug look-alikes people find in bedrooms. The larvae feed on wool, silk, feathers, hair, pet hair and stored dry goods, not on people, and shed skins accumulate in undisturbed corners.

Profile
- Scientific name
- Anthrenus verbasci
- Identification
- Adults are rounded and mottled with white, brown and yellowish scales. Larvae are golden-brown, densely bristly, and taper toward the rear.
- Typical size
- Adults about 1/8 inch; larvae up to about 3/16 inch.
- Behavior
- Adults fly and are attracted to windows and flowers. Larvae feed in dark, undisturbed places — under furniture, along carpet edges, in closets and vents.
- Habitat
- Carpet edges, closets, upholstered furniture, wool rugs, air vents, attics and stored textiles.
- Diet
- Keratin materials — wool, silk, feathers, hair, leather — plus stored dry goods and dead insects.
- Lifecycle
- Larval development is slow, from several months to over a year depending on food and temperature.
- Why it matters
- Textile and stored-product damage. Larval bristles irritate skin for some people, but carpet beetles do not bite or feed on blood — which is why correct identification matters when someone suspects bed bugs.
- DIY considerations
- Thorough vacuuming and textile laundering resolves many light cases; finding the primary infested item is key.
- Professional considerations
- Service inspects for the infested material, treats edges, voids and harborage, and confirms whether the original concern was bed bugs or carpet beetles.
Signs of activity
- Small irregular holes in wool, felt or silk items
- Bristly larvae or shed larval skins along carpet edges and under furniture
- Adult beetles on windowsills in spring
- Damage inside undisturbed closets and storage boxes
Prevention
- Vacuum carpet edges, under furniture and closet floors regularly
- Store wool and specialty textiles clean and sealed
- Clean lint, pet hair and dead insect accumulations from vents and window frames
- Inspect and clean seasonal items before storing them
Sources
Related information
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