woolly aphid
- any plant louse of the family Aphididae, characterized by a waxy secretion that appears like a jumbled mass of fine, curly, white cottony or woolly threads, as Eriosoma lanigerum (woolly apple aphid or American blight) and Prociphilus tessellatus (woolly alder aphid).
- any of various aphids that produce white waxy threads, as Adelges piceae (balsam woolly aphid).
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Origin of woolly aphid
First recorded in 1835–45
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018