IPA: /ˈmiːliˌbʌɡ/
KK: /ˈmiliˌbʌg/
A type of small insect that has a white, cottony or waxy covering and can harm plants, especially fruit trees and citrus trees.
The gardener found mealybugs on the leaves of the orange tree, which were damaging the plant.
The word 'mealybug' is formed from 'mealy' (from Old English 'melige', meaning resembling meal or flour) and 'bug' (from Middle English 'bugge', meaning a bug or insect). The term 'mealybug' refers to an insect that has a powdery or mealy appearance, resembling flour.
Think of something that looks 'mealy' or like 'flour' — that's why a mealybug is an insect that appears powdery.
No commonly confused words.