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.

Colias is a genus of butterflies in the family Pieridae. They are often called clouded yellows in the Palearctic and sulphurs in North America. The closest living relative is the genus Zerene, which is sometimes included in Colias.