Lesser Grain Borer

Lesser Grain Borer

Scientific name: Rhyzopertha dominica (Fabricius)
(Coleoptera: Bostrichidae)

Facts: The lesser grain borer both in the larval and adult stages is a serious pest of stored grain. The adult feeds on whole or cracked grain, and larvae develop inside kernels, destroying the internal contents. The adult is about 1/8 inch long and has powerful chewing mouthparts. Note how the head is turned down under the thorax, a distinguishing characteristic of the family to which this insect belongs. Click here to see larval form.

Photo courtesy of USDA-ARS-GMPRC Web site

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Lesser Grain Borer