| Toxomyia Hull, 1973 |
| Toxophora Meigen, 1803 |
| Toxophora amphitea Walker, 1849 |
| Toxophora cuprea (Fabricius, 1787) |
| Toxophora maxima Coquillett, 1886 |
| Toxophora pellucida Coquillett, 1886 |
| Toxophora varipennis Williston, 1901 |
| Toxophora virgata Osten-Sacken, 1877 |
| Toxophorinae Schiner, 1867 |
| Toxophorini Schiner, 1867 |
| Trinaria Mulsant, 1852 |
| Triodina Hull, 1973 |
| Triodites Osten-Sacken, 1877 |
| Triploechus Edwards, 1937 |
| Triploechus novus (Williston, 1893) |
| Triploechus recurvus (Coquillett, 1902) |
| Triploechus stagei Hall, 1975 |
| Triploechus vierecki Cresson, 1919 |
| Unduloptomyia Evenhuis, 1978 |
| Usiinae Becker, 1913 |