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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.
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]
The wheat weevil (Sitophilus granarius), also known as the grain weevil or granary weevil, is an insect that feeds on cereal grains, and is a common pest in many places. It can cause significant damage to harvested stored grains and may drastically decrease crop yields. The females lay many eggs and the larvae eat the inside of the grain kernels.
In the US, the legislation regulating the presence of insects in grain is the Official United States Standards for Grain, Subpart A—General Provisions, which stipulates that grain is considered infested if it contains "live weevils" or "other live insects injurious to stored grain"; and in Canada the corresponding legislation is the Canadian ...
The confused flour beetle (Tribolium confusum), a type of darkling beetle known as a flour beetle, is a globally found, common pest insect known for attacking and infesting stored flour and grain. They are one of the most common and most destructive insect pests for grain and other food products stored in silos, warehouses, grocery stores, and ...
Gnatocerus cornutus mainly feed on various types of grain, yeasts, and flours. [1] The broadhorned flour beetle undergoes 4 major life stages: egg, larvae, pupa, and adult. The total developmental time is about 47 days, about 1.5 times longer than the Tribolium castaneum, or red flour beetle. [2] In the larval stages of broad-horned flour ...
The red flour beetle (Tribolium castaneum) is a species of beetle in the family Tenebrionidae, the darkling beetles. The red flour beetle, and other closely related beetles like Gnatocerus cornutus , are a worldwide pest of stored products, particularly food grains , and a model organism for ethological and food safety [ 1 ] research.
Flour beetles consume a number of foods to survive. Flour beetles feed on many grain products, cereal, chocolate, and a number of powdered foods; including flour, spices, powdered milk mix, and pancake and cake mix. [5] Flour beetles also consume their own kind and participate in cannibalism. However, it is not a biological characteristic.