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Confused Flour Beetle (Also see Rust-Red Flour Beetle)


(Tribolium confusum)
Confused Flour Beetle (Also see Rust-Red Flour Beetle)

Adult : Reddish-brown, 3-4mm, antennae gradually enlarged towards the tip, flightless adult (T. confusum), reddish-brown, 3-4mm, elongate body with antennae with enlarged last three segments, able to fly (T. castaneum).

Life Cycle

Adult : 6.4-12.7mm long, black with striped white markings (Aedes Spp.), thin, long-legged winged insect; adults have three pairs of long, slender legs, with an elongate "beak" or proboscis to pierce skin.


Both beetles look very similar and share similar habits. They are very common pests infesting many flourmills, warehouses, and grocery stores, also feeding on grain, beans, dried fruits, nuts, chocolate, and other foods in the house. They can also enter homes through infested flour and can build up into large populations on food accumulations in cabinet cracks and crevices and in furniture.