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Colorado potato beetle

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noun
  1. a black and yellow leaf beetle, Leptinotarsa decemlineata, originally of Colorado and neighboring states but now a common pest in all potato-growing regions of the U.S.
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Origin of Colorado potato beetle

An Americanism dating back to 1865–70
Also called Colorado beetle, potato beetle, potatobug.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018