| Label | Id | |
|---|---|---|
| Tymnes | 226564 | |
| Tziminema | 2268916 | |
| Unionicola | 322641 | |
| Unionicolidae | 322640 | |
| Urmitella | 1965226 | |
| Urospora | 1852268 | |
| Urothraupis | 1226243 | |
| Verhoeffiella | 2267855 | |
| Volucella | 226148 | |
| Xenodacnis | 62260 | |
| Xenoligophoroides | 2269072 | |
| Xenospingus | 1226245 | |
| Xerus | 226859 | |
| Xestophanes | 162263 | |
| Zoltanzonitis | 2981226 |