WordReference Random House Unabridged Dictionary of American English © 2020
plant bug′, 
  • Insectsany of numerous, often brightly colored hemipterous insects of the family Miridae that feed on the juices of plants. Also called  capsid, leaf bug. 
    • 1855–60, American.

    'plant bug' also found in these entries (note: many are not synonyms or translations):
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