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Mammalia > Primates > Cercopithecidae > Semnopithecus

Semnopithecus hector Pocock, 1928 – Terai Langur

Taxonomic Notes:

Terai Langur or Terai Grey Langur was once considered as subspecies of Northern Plains Grey Langur Semnopithecus entellus, but now treated as separate species. there are no subspecies recognized in this species. 

This species is listed as Near Threatened in the IUCN Red List of Threatened Species (

Indian and global distribution:
records (based on images):
Sexual, seasonal & individual variation:
Status, Habitat and Habits:

Terai Langur is native to northern India, Bhutan and Nepal. It is distributed at higher altitute up to 1600 m in Himalayan foothills, Siwalik hills. It is mainly arboreal and inhabits moist deciduous forests. It largely forages on leaves and fruits of trees present in its range. 

Conservation Status:

This species is listed as Near Threatened in the IUCN Red List of Threatened Species (

According IUCN Red List assessment population of this species is decreasing. Although, its population size is not estimated, it is belived that this species has a very patchy distribution. Threat to its survival mainly come from habitat fragmentation due to human encroachment in its native range for agriculture, residential and commercial development.

Mammalia > Primates > Cercopithecidae > Semnopithecus

Cite this page along with its URL as:
Bayani, A. 2023. Semnopithecus hector Pocock, 1928 – Terai Langur. A. Bayani, R. Chakravarty, P. Roy, and K. Kunte (editors). Mammals of India, v. 1.13. editors.
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