Gemmaria Ashmead, 1885, Trans. Amer. Ent. Soc. 12: IX.
Gemmula Bassett, 1881, Canad. Ent. 13: 104. Also as gemula.
Geniculata Dufour, by D.T.93: 70.
Gibbosus Provancher, 1881, Nat. Canad. 12: 232.
Gigas Weld. Present assignment.
Glandiformis Giraud, by Kaltenbach, 1867, Verh. Ver. Rheinl. 24: 69 (acc. D.T.93: 42).
Glandis Dahlbom, 1842, Onychia och Callaspidia suppl. page 5 no. 53.
Glandium Giraud, by Kaltenbach, 1867, Verh. Ver. Rheinl. 24: 67 (acc. D.T.93: 88).
Glandulae Schenck, 1865, Jahrb. Ver. Nassau 17-18: 177, 184. For gall only by Hartig 1840: 207.
Glechomae Linnaeus, 1758, Syst. Nat. ed. 10(1): 553.
Globuli Hartig, 1841, Germar Ent. Zeit. 3: 336.
Globulus Fitch, by Osten Sacken, 1861, Proc. Ent. Soc. Phila. 1: 67.
Glutinosa Giraud, 1859, Verh. zoo.-bot. Ges. Wien 9: 342.
Gracilicomis Kieffer, 1903, André Hymén. Europe 7(2): 578.
Groseulariae Giraud, by Kaltenbach, 1874, Pflanzenfeinde: 673, 793.
Guadaloupensis Fullaway. Present assignment.
Hartigi Kollar in Hartig, 1843, Germar Ent. Zeit. 4: 404.
Hayneanus Ratzeburg in Brandt and Ratzeburg, 1833, Mediz. Zoöl. 2: 154 (acc. D.T.93: 111).
Heldae Fullaway. Present assignment.
Hieracei Bouché, 1834, Naturg. Ins.: 164. For gall only by Linnaeus, 1758, Syst. Nat. ed. 10, Is 553.
Hildebrandae Kinsey. Present assignment.
Hirta Bassett, 1864, Proc. Ent. Soc. Phila. 3: 688.
Hispanica Hartig in Rosenhauer, 1856, Th. Andalus.: 373 (acc. D.T.93: 72).
Hungarica Hartig, 1843, Germar Ent. Zeit. 4: 403.
Hyalinus Hartig, by Thomson, 1877, Opusc. Ent. :786.
Ignota Christ, 1791, Naturg. Ins.: 475, pi. 55 fig. 3 (acc. D.T.93: 71). Also as ignita.
Ignota Bassett, 1881, Canad. Ent. 13: 106.
Ilicicola Kinsey. Present assignment.
Ilicifoliae Bassett, 1864, Proc. Ent. Soc. Phila. 3: 682.
Ilicis Fabricius, 1798, Suppl. Ent. Syst. :213.
Inanis Osten Sacken, 1862, Proc. Ent. Soc. Phila. 1: 58, 242.
Inanita Linnaeus, 1767, Syst. Nat. ed. 12, 1(2): 920.
Incepta Kinsey. Present assignment.
Incompta Kinsey. Present assignment.
Indicta Kinsey. Present assignment.
Infectoria Hartig, 1843, Germar Ent. Zeit. 4: 421 (gall only?).
Inferus Linnaeus, 1767, Syst. Nat. ed. 12, 1(2): 918.
Inflator Hartig, by Ratzeburg, 1844, Forstins. 3: 55.
Inoculatorius Kühn, 1782, Naturforscher 17: 219 (acc. D.T.93: 71).
Insana Mayr, 1901, Verh. zoo.-bot. Ges. Wien 51: 65.
Insignis Smith, 1857, Proc. Linn. Soc. Zoöl. 2: 117 (acc. D.T.93: 71).
