| Idaea leucorrheuma Prout L. B., 1932 |
|
Prout L. B. 1932c. New genera and species of Sterrhinae (Fam. Geometridae). page: 247 |
| Idaea lilliputaria (Warren, 1902) |
Northern Cape |
Janse A. J. T. 1933–1935. The Moths of South Africa. Volume II. Geometridae (concluded). page: 245 |
| Idaea lilliputaria (Warren, 1902) |
|
Prout L. B. 1932a. Voyage de Ch. Alluaud et R. Jeannel en Afrique Orientale (1911–1912). Insectes Lépidoptères. III. Geometridae. page: 412 |
| Idaea lilliputaria (Warren, 1902) |
Gauteng |
Janse A. J. T. 1933–1935. The Moths of South Africa. Volume II. Geometridae (concluded). page: 245 |
| Idaea lilliputaria (Warren, 1902) |
North-West |
Janse A. J. T. 1933–1935. The Moths of South Africa. Volume II. Geometridae (concluded). page: 245 |
| Idaea lilliputaria (Warren, 1902) |
Western Cape |
Staude H. S., Picker M. & Griffiths Ch. 2023. Southern African moths & their caterpillars. page: 148 |
| Idaea lilliputaria (Warren, 1902) |
Limpopo |
Janse A. J. T. 1933–1935. The Moths of South Africa. Volume II. Geometridae (concluded). page: 245 |
| Idaea lilliputaria (Warren, 1902) |
Eastern Cape |
Krüger M. 2019b. Geometridae (Lepidoptera, Geometroidea). – In: Mey W. & Krüger M. (Eds), The Lepidoptera fauna of a crater valley in the Great Escarpment of South Africa: The Asante Sana Project. page: 374 |
| Idaea lipara (Prout L. B., 1917) |
KwaZulu-Natal |
Prout L. B. 1917a. New Geometridae (Lepidoptera) in the South African Museum. page: 50 |
| Idaea malescripta (Warren, 1897) |
KwaZulu-Natal |
Warren W. 1897a. New genera and species of moths from the Old-World regions in the Tring Museum. page: 57 |
| Idaea nasifera (Prout L. B., 1916) |
Limpopo |
Prout L. B. 1916a. New South African Geometridae. page: 162 |
| Idaea nasifera (Prout L. B., 1916) |
Gauteng |
Staude H. S., Picker M. & Griffiths Ch. 2023. Southern African moths & their caterpillars. page: 148 (map) |
| Idaea nasifera (Prout L. B., 1916) |
KwaZulu-Natal |
Staude H. S., Picker M. & Griffiths Ch. 2023. Southern African moths & their caterpillars. page: 148 |
| Idaea nasifera (Prout L. B., 1916) |
North-West |
Staude H. S., Picker M. & Griffiths Ch. 2023. Southern African moths & their caterpillars. page: 148 (map) |
| Idaea nigrosticta (Warren, 1897) |
KwaZulu-Natal |
Warren W. 1897a. New genera and species of moths from the Old-World regions in the Tring Museum. page: 61 |
| Idaea nigrosticta (Warren, 1897) |
Gauteng |
Janse A. J. T. 1933–1935. The Moths of South Africa. Volume II. Geometridae (concluded). page: 243 |
| Idaea parallelaria (Warren, 1902) |
Gauteng |
Janse A. J. T. 1933–1935. The Moths of South Africa. Volume II. Geometridae (concluded). page: 237 |
| Idaea parallelaria (Warren, 1902) |
Mpumalanga |
Prout L. B. 1916a. New South African Geometridae. page: 161 (as paraplesia) |
| Idaea parallelaria (Warren, 1902) |
KwaZulu-Natal |
page: ZSM (as paraplesi) |
| Idaea pericalles (Prout L. B., 1913) |
Free State |
Janse A. J. T. 1933–1935. The Moths of South Africa. Volume II. Geometridae (concluded). page: 225 |
| Idaea pericalles (Prout L. B., 1913) |
Limpopo |
Janse A. J. T. 1933–1935. The Moths of South Africa. Volume II. Geometridae (concluded). page: 225 |
| Idaea pericalles (Prout L. B., 1913) |
Gauteng |
Prout L. B. 1913b. New South African Geometridae. page: 202 |
| Idaea pericalles (Prout L. B., 1913) |
North-West |
Janse A. J. T. 1933–1935. The Moths of South Africa. Volume II. Geometridae (concluded). page: 225 |
| Idaea plesioscotia (Prout L. B., 1925) |
Western Cape |
page: ZSM |
| Idaea plesioscotia (Prout L. B., 1925) |
Eastern Cape |
Prout L. B. 1925d. New species of Geometridae (Lepidoptera) in the collections of the South African Museum. page: 585 |