Saw-toothed Grain Beetle vs Confused Flour Beetle

Side-by-side species comparison

Attribute Saw-toothed Grain Beetle Confused Flour Beetle
Scientific Name Oryzaephilus surinamensis Tribolium confusum
Order Coleoptera Coleoptera
Family Silvanidae Tenebrionidae
Size 2.5-3.5 mm 3-4 mm
Habitat Gardens Indoors
Diet Seed Feeders Seed Feeders
Regions Worldwide Worldwide
Conservation Not Evaluated Not Evaluated

Saw-toothed Grain Beetle

A slender brown beetle with six tooth-like projections on each side of the thorax. It is a cosmopolitan pest of processed grain products and dried foods.

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Did You Know?

Its flat body allows it to squeeze through incredibly narrow gaps in food packaging.

Confused Flour Beetle

A small reddish-brown beetle nearly identical to the red flour beetle, hence the 'confused' name. It is a worldwide pest of stored flour.

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Did You Know?

It was named 'confused' because entomologists kept confusing it with the red flour beetle.