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Saw-Toothed Grain Beetle

Oryzaephilus surinamensis


  • Adult — 1/16"–1/8" in length. 6 saw–like projections on each side of the thorax. Long length of head behind the eyes.
  • Larva — yellow to brown with a brown head.


  • 20 days at 35°C, 3–4 months at 20°C. Lower limit of 18°C. More tolerant to temperature extremes than O. mercator.


  • Feeds on cereals and cereal products and can also be found on dried fruit, nuts, etc.

Controlling Insects that attack Food Products