mealybug

[mee-lee-buhg]
noun
  1. any of several scalelike, homopterous insects of the families Pseudococcidae and Eriococcidae that are covered with a powdery wax secretion and feed on plants.

Origin of mealybug

First recorded in 1815–25; mealy + bug1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018