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potatobug

or pota·to bug

[puh-tey-toh-buhg, -tey-tuh-]
noun
  1. Colorado potato beetle.

Origin of potatobug

An Americanism dating back to 1790–1800
Also called potato beetle.

Colorado potato beetle

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.

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
British Dictionary definitions for potato beetle

potato beetle

noun
  1. another name for the Colorado beetle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012