spruce gall aphid

spruce gall aphid

noun
See under adelgid.
Also called spruce gall adelgid.
Dictionary.com Unabridged

adelgid

[uh-del-jid]
noun
any of various homopterous insects of the family Adelgidae, as Adelges abietis (spruce gall aphid) and Pineus pinifoliae (pine leaf aphid) that feed and form galls on conifers.

Origin:
< Neo-Latin Adelgidae, equivalent to Adelg(es) a genus name (apparently < Greek ádel(os) unseen, invisible (a- a-6 + dêlos visible, clear) + Neo-Latin -ges < ?: unexplained by the name's originator) + -idae -id2

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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