Thai National Parks

Mammals of Thailand

Species of Thailand

Phayre's leaf monkey

Binomial name: Trachypithecus phayrei, Edward Blyth, 1847

Phayre's leaf monkey (Trachypithecus phayrei), also known as Phayre's langur, is a species of lutung found in Southeast Asia. The species epithet commemorates Arthur Purves Phayre.

Its range includes Bangladesh, India, Myanmar, China, Thailand, Laos and Vietnam.

It is mostly arboreal and feeds on leaves of a large number of tree species. A study in Tripura, India found the principal food tree species to be Albizzia procera, Melocanna bambusoides, Callicarpa arborea, Dillenia pentagyna, Litsea sp., Albizzia lebbek, Mikania scandens, Gmelina arborea, Artocarpus chaplasha, Syzygium fruticosum, Ficus fistulosa, Ficus racemosa, Ficus hispida, Ficus indica. Macaranga denticulata and Albizzia stipulata.

This article uses material from Wikipedia released under the Creative Commons Attribution-Share-Alike Licence 3.0. Eventual photos shown in this page may or may not be from Wikipedia, please see the license details for photos in photo by-lines.

Site notes

According some authorities Trachypithecus phayrei crepusculus is a new species as Trachypithecus crepusculus, based on molecular data. Subspecies concerned found in Phu Khieo and possibly in Huai Kha Khaeng. IUCN states that further molecular research needed to confirm.

Scientific classification

Trachypithecus phayrei

Common names

  • English:
    • Phayre's langur
    • Phayre’s leaf-monkey
    • Phayre's leaf monkey
  • French: Semnopithèque de Phayre


  • Trachypithecus phayrei crepusculus

  • Trachypithecus phayrei phayrei

  • Trachypithecus phayrei shanicus

Conservation status

Endangered (IUCN3.1)

Endangered (IUCN3.1)

Range map of Trachypithecus phayrei in Thailand

Important note; our range maps are based on limited data we have collected. The data is not necessarily accurate or complete.

Special thanks to Ton Smits, Parinya Pawangkhanant, Ian Dugdale and many others for their contribution for range data.

Contribute or get help with ID

Please help us improving our species range maps. To add a new location to the range map we need a clear image of the specimen you have encountered. No problem if you do not know the species, we will do our best to identify it for you.

For the location, please provide the district name or the national park/ wildlife sanctuary name.

Please post your images to our Thai Species Identification Help group on Facebook.