Common name for a harmful plant parasite in the family Aphididae, some species of which are vectors of plant virus diseases.

1884, Englished from Modern Latin aphides, plural of aphis, coined by Linnaeus (1758), though where he got it and why he applied it to the plant louse are mysteries. The theory favored by OED as " [..]

tiny insect that eats the sap of plants.

A small sucking insect. They are only a few milimetres long, pear shaped, and appear in great numbers at the tender growing points of the attacked plant. They are most easily recognized by the fact th [..]

(n) any of various small plant-sucking insects

these are sap sucking and soft-bodied insects that come in four different colors. Some are green, white and yellow with others are black.

A small sap-sucking insect (and a favorite food of ladybugs).

an insect in the family Aphidiidae which are sometimes called plant lice

<zoology> One of the genus Aphis; an aphidian. They are small insects that suck the juices of plants. Some genera are asterochiton, eriosoma, and phylloxera. (25 Jun 1999)