| Scientific name | Authorship | Rank | Status | Images | |
|---|---|---|---|---|---|
| Idaea damadensis | Wiltshire, 1986 | species | Accepted | ||
| Idaea daucina | Herbulot, 1978 | species | Accepted | ||
| Idaea demaculata | Krüger, 2019 | species | Accepted | ||
| Idaea digitella | Herbulot, 1978 | species | Accepted | ||
| Idaea draconigena | Herbulot, 1981 | species | Accepted | ||
| Idaea echo | (Prout L. B., 1916) | species | Accepted | ||
| Idaea enargeia | Fletcher D. S., 1978 | species | Accepted | ||
| Idaea enteucha | Krüger, 2007 | species | Accepted | ||
| Idaea eremica | (Brandt, 1941) | species | Accepted | ||
| Idaea eugeniata | (Dardoin & Millière, 1872) | species | Accepted | ||
| Idaea eugeniata algeriaca | (Culot, 1917) | subspecies | Accepted | ||
| Idaea exilinota | (Warren, 1897) | species | Synonym | ||
| Idaea exquisita | (Warren, 1897) | species | Accepted | ||
| Idaea fimbriata | (Bang-Haas, 1907) | species | Misapplied | ||
| Idaea flamingo | (Warren, 1901) | species | Accepted | ||
| Idaea fortificata | (Prout L. B., 1916) | species | Accepted | ||
| Idaea fumigata | Hausmann, 2006 | species | Accepted | ||
| Idaea fumilinea | (Warren, 1903) | species | Accepted | ||
| Idaea fumilinea confracta | (Prout L. B., 1925) | subspecies | Accepted | ||
| Idaea fumilinea fumilinea | (Warren, 1903) | subspecies | Accepted | ||
| Idaea fylloidaria | (Swinhoe, 1904) | species | Accepted | ||
| Idaea gallagheri | Wiltshire, 1983 | species | Accepted | ||
| Idaea glomerata | (Prout L. B., 1937) | species | Accepted | ||
| Idaea granulosa | (Warren & Rothschild, 1905) | species | Accepted | ||
| Idaea griveaudi | Herbulot, 1978 | species | Accepted |