| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Xiphydria camelus | 0 | 0 | 1 |
| Xiphydriidae (xiphydriid wood wasps) | 1 | 0 | 0 |
| Xylaria | 1 | 0 | 0 |
| Xylaria hypoxylon (L.) Grev. 1824 (Candle-snuff Fungus) | 0 | 0 | 1 |
| Xylariaceae | 3 | 0 | 0 |
| Xyleborus | 1 | 0 | 0 |
| Xyleborus cryptographus Wood & Bright 1992 | 0 | 0 | 1 |
| Xylechinus | 1 | 0 | 0 |
| Xylechinus pilosus Chapuis 1869 | 0 | 0 | 1 |
| Xylodon | 1 | 0 | 0 |
| Xylodon serum | 0 | 0 | 1 |
| Xylomoia | 1 | 0 | 0 |
| Xylomoia strix Mikkola 1980 | 0 | 0 | 1 |
| Xysticus | 1 | 0 | 0 |
| Xysticus bifasciatus C. L. Koch 1837 | 0 | 0 | 1 |
