Consobrina Zetterstedt, 1838, Ins. Lappon. 1: 410 (acc. D.T.93: 68).
Consocians Kinsey. Present assignment.
Conspicua Kinsey. Present assignment.
Corallina Bassett, by Fullaway, 1911, Ann. Ent. Soc. Amer. 4: 343.
Coriaria Haimhoffen, 1867, Verh. zoo.-bot. Ges. Wien 17: 527.
Cornifex Hartig, 1843, Germar Ent. Zeit. 4: 406 (as Cynips carnifex).
Cornigera Osten Sacken, 1865, Proc. Ent. Soc. Phila. 4: 358.
Coronaria Stefani, 1898, Natural. Sicil. (2) 2: 160 (acc. D.T. & K. 10: 431).
Coronata Giraud, 1859, Verh. zoo.-bot. Ges. Wien 9: 343.
Corrugis Bassett, 1881, Canad. Ent. 13: 109.
Corruptrix Schlechtendal, 1870, Stettiner Ent. Zeit. 31: 339.
Corticalis Hartig. 1840. Germar Ent. Zeit. 2: 190.
Corticis Hartig, 1840, Germar Ent. Zeit. 2: 190.
Coxii Bassett, 1881, Canad. Ent. 13: 112.
Crassicornis Curtis, 1838, Brit. Ent. 15: 688.
Crassior Kinsey. Present assignment
Crassitelus Provancher, 1881, Nat. Canad. 12: 232.
Cristatae Henschel, 1876, Leitfad. Best. Schädl. Inset. :225 (acc. D.T.93: 67).
Cruenta Kinsey. Present assignment.
Crustalis Hartig, by Kaltenbach, Verh. Ver. Rheinl. 24: 57 (acc. D.T.93: 62).
Cultellator Fabricius, by Jurine, 1807, Nouv. méth. class. Hymén. :286 (acc. D.T.93: 132).
Curtisii Müller, 1870, Gard. Chron. 40: 1312 (acc. D.T.93: 68).
Curvator Hartig, by Kaltenbach, 1867, Verh. Ver. Rheinl. 24: 63 (acc. D.T.93: 85).
Cydoniae Giraud, by Kaltenbach, 1867, Verh. Ver. Rheinl. 24: 68 (acc. D.T.93: 85).
Dalmanni Dahlbom, 1842, Onychia och Callaspidia, suppl. page 4 No. 39.
Decidua Beucenmüller, 1913, by Felt, 1918, N.Y. Mus. Bull. 200: 110, pi. 3 fig. 1. Cynips decidua for gall only by Bassett, 1864, Proc. Ent. Soc. Phila. 3: 689.
Derivatus Kinsey. Present assignment.
Dichlocerus Harris, 1841, Ins. Mass. Inj. Veget.:399.
Dimorphus Beutenmüller, 1913, Trans. Amer. Ent. Soc. 39: 245.
Discoloris Froggatt, 1892, Proc. Linn. Soc. N.S. Wales (2) 7: 153.
Disticha Hartig, 1840, Germar Ent. Zeit. 2: 188.
Distigma Taschenberg, 1866, Hymen. Deutschl.: 144.
Divisa Hartig, 1840, Germar Ent. Zeit. 2: 188.
Douglasii Ashmead. Present assignment.
Dugèsi Mayr. Present assignment.
Dumosae Kinsey. Present assignment.
Duricoria Bassett, by Ashmead in Packard, 1890, 5th Rpt. U.S. Ent. Comm.: 113.
Echinoides Kinsey. Present assignment.
Echinus Osten Sacken, 1870, Trans. Amer. Ent. Soc. 3: 56.
