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Merchant Grain Beetle

Oryzaephilus mercator

Appearance

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

Lifecycle

  • Optimum conditions are 30–33°C. Cannot tolerate low temperatures.

Habits

  • A particular pest of dried fruit and chocolate.

Controlling Insects that attack Food Products