The Nilgiri langur[1] (Semnopithecus johnii), also called the black-leaf monkey, John’s langur, and Indian hooded leaf monkey is a langur (a species of Old-World monkey) found in the Nilgiri foothills of the Western Ghats in southern India.
- These langurs’ range also includes Kodagu in Karnataka, Kodayar Hills in Tamil Nadu, and many other mountainous regions of Tamil Nadu and Kerala.
- Nilgiri langurs have a glossy black coat with a reddish brown to golden head. Newborns are reddish-brown until ten weeks of age when they take on the color of adults.
- Like purple-faced langurs, Nilgiri langurs have dark faces and white whiskers. In addition, female species have white patches on their thighs that distinguish them from male species.
- Nilgiri langurs are sexually dimorphic, with males being slightly larger than females.
