red flour beetle
US /red ˈflaʊər ˈbiːtl/
UK /red ˈflaʊər ˈbiːtl/
1.
a small, reddish-brown beetle (Tribolium castaneum) that is a common pest of stored grain products and flour
:
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The warehouse was infested with red flour beetles.
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To prevent red flour beetles, store flour in airtight containers.