Sap sucker

(Zool.) any one of several species of small American woodpeckers of the genus Sphyrapicus, especially the yellow-bellied woodpecker (S. varius) of the Eastern United States. They are so named because they puncture the bark of trees and feed upon the sap. The name is loosely applied to other woodpeckers.

See also: Sap

References in periodicals archive ?
This looks like hydrangea scale insect, a sap sucker which weakens the plant, and it's not a problem that will go away on its own.
The cushion scale - a sap sucker that eats foliage of evergreen trees and shrubs, especially camellia and rhododendron - is also in the top 10.
From a bounty of some 300 wasps, weevils, stem borers, sap suckers, seed eaters, and others, the scientists have narrowed the field of potential control agents to about 12 candidates that attack not just C.
In their PNAS article, Strassmann and Queller sum up social sap suckers of the 21st century: "Not only are the aphids fierce, but they are also sneaky and clever.