bark beetle

noun
any of numerous small, cylindrical beetles of the family Scolytidae that nest under the bark of hardwood trees, leaving intricate tracings on the wood.


Origin:
1860–65

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World English Dictionary
bark beetle
 
n
any small beetle of the family Scolytidae, which bore tunnels in the bark and wood of trees, causing great damage. They are closely related to the weevils

Collins English Dictionary - Complete & Unabridged 10th Edition
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Example sentences
Changes to watershed processes will occur as a result of the bark beetle
  epidemic.
Using natural bark beetle pheromones to mitigate native bark beetle infestation.
Interest in western bark beetle technology development and transfer.
These trees have been killed by the spruce bark beetle.
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