The Nilgiri clouded yellow, Colias nilagiriensis, sometimes considered a subspecies of Colias erate, is a small butterfly native to Shola forests of the Western Ghats. It belongs to the family Pieridae.

Sholas are the local name for patches of stunted tropical montane forest found in valleys amid rolling grassland in the higher montane regions of South India, largely in Kerala, Karnataka and Tamilnadu. These patches of shola forest are found mainly in the valleys and are usually separated from one another by undulating montane grassland. The shola and grassland together form the shola-grassland complex or mosaic. Not all such high-elevation grasslands have sholas in their valleys, especially if they are isolated from other such meadows, such as the meadows found in the Idamalayar Reserve Forest in Ernakulam district of Kerala. The word 'Shola' is probably derived from the Tamil language word cōlai (சோலை) meaning grove.