| Ichneumon puparum Linnaeus, 1758 |
| Ichneumon roborator Fabricius, 1793 |
| Ichneumon solitus Cresson, 1877 |
| Ichneumon subcyaneus Cresson, 1864 |
| Ichneumon sublutus Cameron, 1885 |
| Ichneumon subspinosus Cresson, 1868 |
| Ichneumon tenebricus Cresson, 1868 |
| Ichneumon tharotis Packard, 1881 |
| Ichneumon tumidulus Cameron, 1885 |
| Ichneumon vexatoria (Thunberg, 1822) |
| Ichneumon vinctus (Say, 1829) |
| Ichneumon zapotecus Cresson, 1873 |
| Ichneumonidae Latreille, 1802 |
| Ichneumoninae Latreille, 1802 |
| Ichneumonologlypta Blanchard, 1941 |
| Icyona Cameron, 1903 |
| Idecthis Förster, 1869 |
| Idecthis paenerivalis Viereck, 1906 |
| Idiolispa Förster, 1869 |
| Idiolispa aestivalis Townes, 1962 |