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WordReference Random House Unabridged Dictionary of American English © 2024elm′ bark′ bee′tle, - InsectsAlso called smaller European elm bark beetle. a shiny, dark reddish-brown bark beetle, Scolytus multistriatus, originating in Europe and now widespread in the U.S.: the primary vector of Dutch elm disease.
- InsectsAlso called native elm bark beetle. a bark beetle, Hylurgopinus opaculus, of eastern North America, that also transmits Dutch elm disease.
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