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One of the genus Aphis; an aphidian.

See Aphis.

Of or pertaining to the family Aphidæ. -- n.

Devouring aphides; aphidophagous.

Feeding upon aphides, or plant lice, as do beetles of the family Coccinellidæ.

See Rhaphides.

ransparent, often needlle-shaped, crystals found in the tissues of plants. [Written also raphides.]

Any aphid from which ants obtain honeydew.

Various kinds of plant lice or aphids tended by ants for the sake of the honeydew which they secrete. See Aphips.

A genus of insects belonging to the order Hemiptera and family Aphidæ, including numerous species known as plant lice and green flies.

The larva of the lacewinged flies (Chrysopa), which feeds voraciously upon aphids. The name is also applied to the larvæ of the ladybugs (Coccinella).

A larva that feeds on aphides.

eaves of certain plants of the order Araceæ. It has an opening at each end through which raphides, generated inside, are discharged.

A genus of small beetles of many species. They and their larvæ feed on aphids or plant lice, and hence are of great benefit to man. Also called ladybirds and ladybugs.

A division of the Hemiptera, including the aphids.

and lay their eggs in the wounds. The larvae live within the galls. Some galls are due to aphids, mites, etc. See Gallnut.

the color of the flame is due. -- Green fly (Zoöl.), any green species of plant lice or aphids, esp. those that infest greenhouse plants. -- Green gage, (Bot.) See Greengage, in the Vocabulary. -- Green gland (Zoöl.), one of a pair of large green glands in Crustacea, supposed to serve as kidneys. They have their ou…

by this name; one exuded from the plants, and the other secreted by certain insects, esp. aphids.

, a small flea beetle (Haltica concinna), very injurious to hops. -- Hop fly (Zoöl.), an aphid (Phorodon humuli), very injurious to hop vines. -- Hop froth fly (Zoöl.), an hemipterous insect (Aphrophora interrupta), allied to the cockoo spits. It often does great damage to hop vines. -- Hop hornbeam (Bot.), an Ameri…

ey have delicate, lacelike wings and brilliant eyes. Their larvæ are useful in destroying aphids. Called also lace-winged fly, and goldeneyed fly.