Mealy Bug, a very destructive insect in greenhouses, of the order hemiptera, and family coccidae or bark lice, the coccus Adonidum, (Linn.). The perfect insects resemble small scales; the reddish larvae are small, but very active, flat and oval in shape; the females have a beak with which they pump up the juices of plants; they fix themselves from time to time for the purpose of changing their skin, when they cover themselves with a white, powdery, cottony substance, which has given them their common name. Several broods are produced in a year, which cause great annoyance in hothouses; the eggs are deposited in a similar cottony material. In the natural state many are destroyed by ichneumon parasites and are devoured by birds. Alkaline washes are found most effectual in checking their ravages, both within and out of the greenhouse.

Meal Worm Moth (Pyralis farinalis).

Meal Worm Moth (Pyralis farinalis).