| Tetrapediini Michener & Moure, 1957 |
| Thygater Holmberg, 1884 |
| Thygater (Nectarodiaeta) Holmberg, 1903 |
| Thygater (Nectarodiaeta) mexicana Urban, 1967 |
| Thygater (Thygater) Holmberg, 1884 |
| Thygater (Thygater) aethiops (Smith, 1854) |
| Thygater (Thygater) analis (Lepeletier, 1841) |
| Thygater (Thygater) cockerelli (Crawford, 1906) |
| Thygater (Thygater) micheneri Urban, 1967 |
| Thygater (Thygater) montezuma (Cresson, 1878) |
| Thygater (Thygater) rubricata (Smith, 1879) |
| Townsendiella Crawford, 1916 |
| Townsendiella (Townsendiella) Crawford, 1916 |
| Townsendiella pulchra Crawford, 1916 |
| Townsendiellini Michener, 1944 |
| Triepeolus Robertson, 1901 |
| Triepeolus cameroni (Meade-Waldo, 1913) |
| Triepeolus grandis (Friese, 1916) |
| Triepeolus kathrynae Rozen, 1989 |
| Triepeolus lunatus (Say, 1825) |