| Scientific name | Authorship | Rank | Status | Images | |
|---|---|---|---|---|---|
| Whalleyana toni | Viette, 1977 | species | Accepted | ||
| Whalleyana vroni | Viette, 1977 | species | Accepted | ||
| Wiltshirocossus aegiptiaca | (Yakovlev, 2011) | species | Misapplied | ||
| Wiltshirocossus aegyptiaca | (Hampson, 1910) | species | Synonym | ||
| Wiltshirocossus aries | (Püngeler, 1902) | species | Accepted | ||
| Wiltshirocossus bongiovannii | (Krüger, 1939) | species | Synonym | ||
| Wiltshirocossus cheesmani | (Tams, 1925) | species | Synonym | ||
| Wiltshirocossus pulcher | (Rungs, 1943) | species | Synonym | ||
| Wiltshirocossus tahlai | (Dumont, 1932) | species | Synonym | ||
| Wiltshirocossus turatii | (Krüger, 1934) | species | Synonym | ||
| Wittoecia brehmi | (Yakovlev & Witt, 2016) | species | Accepted | ||
| Wockia africana | Heppner, 2023 | species | Accepted | ||
| Wolframmeyia imperialis | (Grünberg, 1910) | species | Accepted | ||
| Wyoma striaticostella | (Petersen, 1959) | species | Accepted | ||
| Xanthia basalis | Walker, 1862 | species | Accepted | ||
| Xanthisthisa brunnea | (Warren, 1899) | species | Accepted | ||
| Xanthisthisa copta | Herbulot, 1977 | species | Accepted | ||
| Xanthisthisa extrema | Herbulot, 1999 | species | Accepted | ||
| Xanthisthisa fulva | (Warren, 1902) | species | Accepted | ||
| Xanthisthisa holmi | Fletcher D. S., 1958 | species | Accepted | ||
| Xanthisthisa lemairei | Herbulot, 1973 | species | Accepted | ||
| Xanthisthisa nigrocumulata | (Warren, 1902) | species | Accepted | ||
| Xanthisthisa niveifrons | (Prout L. B., 1922) | species | Accepted | ||
| Xanthisthisa tarsispina | (Warren, 1901) | species | Accepted | ||
| Xanthisthisa tergorinota | Prout L. B., 1928 | species | Accepted |