Two kinds of carpet-damaging beetles exist: varied carpet beetles and black carpet beetle. These critters literally eat wool fiber and other natural sources of food, such as leather and dead skin cells, and can be difficult to eliminate. The larvae crawl from room to room hiding in baseboards, molding, and heating systems. Adult beetles fly in from outside and lay eggs.
Varied Carpet Beetle
Black Carpet Beetle
Depending on the part of the country you live in and the wool content of your carpet, you may encounter carpet beetles no matter how well kept your house is. Synthetic carpet fiber is naturally resistant to beetles. Wool carpet yarns are treated to resist moths; this treatment should resist attack by beetles. If you do find them, they need to be handled by a professional pest control specialists.
The best defense is vacuuming frequently especially under furiture. Also when you clean your carpet ask for moth treatment if you do encounter this problem.
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