| Scientific name | Authorship | Rank | Status | Images | |
|---|---|---|---|---|---|
| Xenosocia lampouris | Diakonoff, 1989 | species | Accepted | ||
| Xenosocia panegyrica | Diakonoff, 1989 | species | Accepted | ||
| Xenosocia polyschelis | Diakonoff, 1989 | species | Accepted | ||
| Xenosocia tryphera | Diakonoff, 1989 | species | Accepted | ||
| Xenostega eurhythma | Prout L. B., 1934 | species | Accepted | ||
| Xenostega ochracea | (Butler, 1879) | species | Accepted | ||
| Xenostega segmentaria | (Saalmüller, 1891) | species | Accepted | ||
| Xenostega treptostiches | Prout L. B., 1934 | species | Accepted | ||
| Xheroctys jeannelliella | Viette, 1954 | species | Accepted | ||
| Ximacodes affinis | (Mabille, 1890) | species | Accepted | ||
| Ximacodes malagasy | Viette, 1980 | species | Accepted | ||
| Ximacodes pyrosoma | (Butler, 1882) | species | Accepted | ||
| Ximacodes subrufa | (Hering, 1957) | species | Accepted | ||
| Xylia sophrosyne | Leraut G., 2019 | species | Accepted | ||
| Xylophanes thyelia | (Linnaeus, 1758) | species | Accepted | ||
| Xylopteryx cowani | Viette, 1972 | species | Accepted | ||
| Xylopteryx doto | Prout L. B., 1925 | species | Accepted | ||
| Xylopteryx doto doto | Prout L. B., 1925 | subspecies | Accepted | ||
| Xylostola punctum | Berio, 1956 | species | Accepted | ||
| Xyroptila irina | Kovtunovich & Ustjuzhanin, 2006 | species | Accepted | ||
| Xyrosaris secreta | Meyrick, 1912 | species | Accepted | ||
| Yponomeuta fumigatus | Zeller, 1852 | species | Accepted | ||
| Yponomeuta gnophera | Agassiz, 2019 | species | Accepted | ||
| Yponomeuta madagascariensis | Gershenson, 2003 | species | Accepted | ||
| Yponomeuta malagasella | Agassiz, 2019 | species | Accepted |