greenbug

[green-buhg]

noun

a pale-green aphid, Schizaphis graminum, of North America, destructive of wheat, other small grains, and alfalfa.

Origin of greenbug

First recorded in 1705–15; green + bug¹

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018