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A guide to the black carpet beetle

The black carpet beetle, Attagenus unicolor, has distinct adults and larvae from the other carpet beetles mentioned earlier. Black carpet beetles' adult sizes range from 1/8 to 3/16 inches. They are dark brown and shiny black, and their legs are brownish. Larvae that reach full size can be as long as 5/16 of an inch in length and can be light brown or nearly black.

The body of the larvae is covered in short, stiff hairs that are shiny, smooth, and hard. Their body ends in a tuft of long hairs and tapers toward the back. The black carpet beetle is a more serious pest than a fabric pest for stored products like grains, flours, and cereals in California and other arid regions.

The black carpet beetle typically produces 90 eggs, which is more than the other two species combined. The larvae live for 166 to 330 days before pupating, and the eggs hatch after 9 to 16 days. Between 8 and 14 days pass during the pupal stage. Black carpet beetles reach adulthood after 4 to 8 weeks.

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