the world > animals > invertebrates > phylum Arthropoda > class Insecta > [noun] > member of > defined by feeding or parasitism > parasite(s) > which produces excrescence on trees
shell-insect1753
vine gall-insect1753
gall-insect1759
gall-mite1881
1759 B. Stillingfleet tr. I. Biberg Oeconomy Nature in Misc. Tracts Nat. Hist. 72 When the gall-insect called cynips, has fixed her eggs in the leaves of an oak, the wound of the leaf swells.