| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Xestia c-nigrum | 0 | 0 | 1 |
| Xestia sincera | 0 | 0 | 1 |
| Xestia speciosa | 0 | 0 | 1 |
| Xestoiulus | 1 | 0 | 0 |
| Xestoiulus fontisherculis (Verhoeff 1899) | 0 | 0 | 1 |
| Xyalidae Chitwood 1951 | 1 | 0 | 0 |
| Xylaria | 1 | 0 | 0 |
| Xylaria polymorpha (Pers.) Grev. 1824 (dead man's fingers) | 0 | 0 | 1 |
| Xylariaceae | 3 | 0 | 0 |
| Xylariales | 2 | 0 | 0 |
| Xylena (Swordgrass Moths) | 3 | 0 | 0 |
| Xylena exsoleta Linnaeus 1758 (Sword-grass moth) | 0 | 0 | 1 |
| Xylena lunifera Warren 1910 | 0 | 0 | 1 |
| Xylena vetusta Hübner 1813 (red sword-grass) | 0 | 0 | 1 |
| Xylocopa Latreille 1802 (Carpenter Bees) | 2 | 0 | 0 |
