| Scientific name | Authorship | Rank | Status | Images | |
|---|---|---|---|---|---|
| Idaea banghaasi | (Prout L. B., 1934) | species | Accepted | ||
| Idaea basicostalis | (Warren, 1900) | species | Accepted | ||
| Idaea benescripta | (Prout L. B., 1922) | species | Synonym | ||
| Idaea brevissimipes | (Herbulot, 1955) | species | Accepted | ||
| Idaea buchanani | (Prout L. B., 1932) | species | Accepted | ||
| Idaea bura | (Prout L. B., 1932) | species | Accepted | ||
| Idaea burtti | (Fletcher D. S., 1958) | species | Accepted | ||
| Idaea carneilinea | (Prout L. B., 1922) | species | Accepted | ||
| Idaea circumsticta | (Warren, 1904) | species | Accepted | ||
| Idaea cochlearia | (Herbulot, 1956) | species | Accepted | ||
| Idaea consectatrix | Krüger, 2007 | species | Accepted | ||
| Idaea consericeata | (Prout L. B., 1913) | species | Accepted | ||
| Idaea contrastata | Hausmann, 2006 | species | Accepted | ||
| Idaea controversata | (Prout L. B., 1922) | species | Accepted | ||
| Idaea coronata | Hausmann, 2006 | species | Accepted | ||
| Idaea crassisquama | (Warren & Rothschild, 1905) | species | Synonym | ||
| 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 |