spruce gall aphid
See under adelgid.
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Also called spruce gall adelgid.
Definition for spruce gall aphid (2 of 2)
[ uh-del-jid ]
/ əˈdɛl dʒɪd /
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.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019