What is "mealy bug"

mealybug \meal"y*bug`\, mealy bug \mealy bug\ (m[=e]l"[y^]*b[u^]g`), n. (Zo["o]l.), Any of several homopteran scale insects (as, Coccus adonidum, and related species of the families Pseudococcidae and Eriococcidae), that cover themselves with a white powderlike or cottony wax secretion. They are common plant-eating pests in hothouses and are also destructive of fruit trees.

n. (alternative spelling of mealybug English)

n. scale-like plant-eating insect coated with a powdery waxy secretion; destructive especially of fruit trees [syn: mealybug]