| Scientific name | Authorship | Rank | Status | Images | |
|---|---|---|---|---|---|
| Idaea sympractor | (Prout L. B., 1932) | species | Accepted | ||
| Idaea tahamae | Wiltshire, 1983 | species | Accepted | ||
| Idaea tineigidiata | Hausmann, 2006 | species | Accepted | ||
| Idaea tornivestis | (Prout L. B., 1932) | species | Accepted | ||
| Idaea torrida | (Warren, 1904) | species | Accepted | ||
| Idaea townsendi | (Fletcher D. S., 1956) | species | Accepted | ||
| Idaea transcatenulata | (Rothschild, 1915) | species | Accepted | ||
| Idaea triangulifera | Hausmann, 1998 | species | Synonym | ||
| Idaea trissosemia | (Prout L. B., 1922) | species | Accepted | ||
| Idaea tristega | (Prout L. B., 1932) | species | Accepted | ||
| Idaea umbricosta | (Prout L.B., 1913) | species | Accepted | ||
| Idaea umbricosta ambiscripta | (Prout L. B. 1922) | subspecies | Synonym | ||
| Idaea umbricosta depleticosta | (Prout L. B., 1916) | subspecies | Accepted | ||
| Idaea umbricosta omoscotia | (Prout L. B., 1922) | subspecies | Synonym | ||
| Idaea umbricosta umbricosta | (Prout L.B., 1913) | subspecies | Accepted | ||
| Idaea variabilis | Hausmann, 2006 | species | Accepted | ||
| Idaea volloni | (Lucas & Joannis, 1907) | species | Accepted | ||
| Idaea wittmeri | Wiltshire, 1982 | species | Accepted | ||
| Idia fumosa | (Hampson, 1896) | species | Accepted | ||
| Idiochlora approximans | (Warren, 1897) | species | Accepted | ||
| Idiochlora bischofi | (Hausmann, 1999) | species | Accepted | ||
| Idiochlora eborilitoris | (Prout L. B., 1930) | species | Accepted | ||
| Idiochlora inornate | (Prout L. B., 1916) | species | Misapplied | ||
| Idiochlora schreieri | (Hausmann, 1999) | species | Accepted | ||
| Idiochlora subrufibasis | (Prout L. B., 1930) | species | Accepted |
Designed, implemented and hosted by the Belgian Biodiversity Platform
version 2023-09-18