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Oryzaephilus mercator, the merchant grain beetle, is a small, flattened beetle about 2.5mm in length. [1] It is a common, worldwide pest of grain and grain products as well as fruit, chocolate, drugs, and tobacco. [1] The biology of O. mercator is nearly identical with Oryzaephilus surinamensis (the sawtooth grain beetle). [1]
Oryzaephilus is a genus of beetles in the family Silvanidae, containing 16 species: [1] Oryzaephilus abeillei Guillebeau; ... Oryzaephilus mercator Fauvel;
O. surinamensis is a slender, dark brown beetle 2.4–3 mm in size, with characteristic "teeth" running down the side of the prothorax. [4] It is nearly identical to Oryzaephilus mercator, or the Merchant Grain Beetle, [2] however, O. surinamensis has smaller eyes and a broader, more triangular head; [2] O. surinamensis unlike O. mercator are unable to fly.
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Home-stored product entomology is the study of insects that infest foodstuffs stored in the home. It deals with the prevention, detection and eradication of pests. [citation needed]
Oryzaephilus mercator – merchant grain beetle; Oryzaephilus surinamensis – saw-toothed grain beetle; Psammoecus bipunctatus; Silvanus bidentatus; Silvanoprus fagi; Silvanus unidentatus; Uleiota planata; Family Cucujidae. Pediacus depressus; Pediacus dermestoides; Family Laemophloeidae. Cryptolestes capensis; Cryptolestes duplicatus ...
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The species is very similar to saw-toothed grain beetle, Oryzaephilus surinamensis and the merchant grain beetle, Oryzaephilus mercator. [3] Male is about 3.7 mm and female is about 3.5 mm in length. Adults are dark brown to black. Body is more elongate and covered with recumbent golden setae. Pronotum in large males.