Thai National Parks

Mammals of Thailand

Species of Thailand

Banded surili

Binomial name: Presbytis femoralis, William Charles Linnaeus Martin, 1838

The banded surili (Presbytis femoralis), also known as the banded leaf monkey or banded langur, is a species of primate in the Cercopithecidae family. It is endemic to the Thai-Malay Peninsula and the Indonesia island of Sumatra. It is threatened by habitat loss. Three subspecies, femoralis (nominate), robinsoni and percura, are recognized here, but the taxonomy is complex and disputed, and it has also included P. natunae, P. siamensis and P. chrysomelas as subspecies, or alternatively all these (including P. femoralis) have been considered subspecies of P. melalophos. It is diurnal and eats fruit.

In Singapore, the banded leaf monkey is critically endangered with a population of approximately 40 individuals left in the Central Catchment Nature Reserve. The species was formerly found in the Bukit Timah Nature Reserve, but that population died out in 1987. The last individual to live in Bukit Timah is now displayed at the Raffles Museum of Biodiversity Research. The main threat to the Singapore population appears to be habitat loss. The National Biodiversity Centre, in partnership with the Evolution Lab of the National University of Singapore, launched an ecological study to determine suitable conservation strategies.

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.

Scientific classification

Presbytis femoralis

Common names

  • English:
    • Banded langur
    • Banded leaf monkey
    • Banded surili


  • Presbytis keatii, Herbert Christopher Robinson & Cecil Boden Kloss (1991)
  • Presbytis australis, Gerrit Smith Miller, Jr (1913)
  • Presbytis neglectus, Hermann Schlegel (1876)

Conservation status

Near Threatened (IUCN3.1)

Near Threatened (IUCN3.1)

Range map of Presbytis femoralis 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.