Wiktionary
woolly adelgid
alt. A common name for insects of either species (taxlink Adelges piceae species) or (taxlink Adelges tsugae species). n. A common name for insects of either species (taxlink Adelges piceae species) or (taxlink Adelges tsugae species).
WordNet
woolly adelgid
n. an insect that feeds on hemlocks; its egg sacs are small fuzzy white balls like artificial snow on a Christmas tree