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Cross Timbers

Gateway from forest to prairie

5th poster of the
Biodiversity of Oklahoma series

American Burying Beetle

Nicrophorus americanus
This large beetle is approximately 1-1.5 inches long.  As the largest member of the carrion beetle family, it feeds on the carcasses of dead mammals, birds and reptiles.

The American Burying Beetle occupies a wide range of habitat types including tallgrass prairie, woodlands, and forests. They reproduce in the spring and summer (early May through August). A pair of beetles will find a carcass that is approximately the size of a rat, bury it a few inches below the surface of the ground and lay a small clutch of 10 to 25 eggs on it. Their populations appear to be more limited by the availability of suitable carcasses for reproduction than by habitat loss.

Currently, the American Burying Beetle occurs across the eastern third of Oklahoma. Despite its apparently wide range, it is rare in most of the places where it occurs. In addition to Oklahoma, populations exist in Arkansas, Missouri, Kansas, Nebraska, South Dakota, Rhode Island and Massachusetts. Historically, the American Burying Beetle occurred through the eastern United States from the eastern edge of the Great Plains to the Atlantic Coast.  The reasons for the decline in American Burying Beetles are uncertain. Pesticide use has been speculated as a leading cause. Another potential factor may be a reduction in the abundance of carcasses that are of suitable size for success reproduction.

From the Oklahoma Department of Wildlife Conservation Rare Species Page.

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The Biodiversity of Oklahoma poster series is a project of the Oklahoma Biological Survey and the University of Oklahoma.
For more information contact the Priscilla Crawford, at prill@ou.edu or 405-325-7658.