François' langur

Weight

7.33 kg – 7.8 kgsrc for Weight

Length

Not recorded

Lifespan

24.7 yearssrc for Lifespan

Diet

Herbivoresrc for Diet

Longest recorded lifespan

26.3 years

Main food

Not recorded

Habitat

forestsrc for Habitat

Young per litter or clutch

Not recorded

Age at maturity

4 yearssrc for Age at maturity

Active

By day (diurnal)src for Active

Lifestyle

Arborealsrc for Lifestyle

Conservation status

Endangered (IUCN)src for Conservation status

Countries on record

Not recorded

Not recorded

The françois' langur is listed as Endangered on the IUCN Red List: it faces a very high risk of extinction in the wild.

1. LCLeast Concern
2. NTNear Threatened
3. VUVulnerable
4. ENEndangered
5. CRCritically Endangered
6. EWExtinct in the Wild
7. EXExtinct

Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Endangered species. What the categories mean.

1. kingdomAnimalia
2. phylumChordata
3. classMammalia
4. orderPrimates
5. familyCercopithecidae
6. genusTrachypithecus
7. SpeciesTrachypithecus francoisi (de Pousargues, 1898)

Synonyms Pithecus francoisi, Presbytis francoisi, Pygathrix francoisi, Semnopithecus francoisi, Trachypithecus francoisi francoisi

Catalogue of LifeWikipediaiNaturalistWikidataIUCN Red List

EN, Endangered

Gee's golden langur

Trachypithecus geei

Cercopithecidae

EN, Endangered

Phayre's leaf monkey

Trachypithecus phayrei

Cercopithecidae

VU, Vulnerable

Capped langur

Trachypithecus pileatus

Cercopithecidae

VU, Vulnerable

East Javan langur

Trachypithecus auratus

Cercopithecidae

EN, Endangered

Dusky leaf monkey

Trachypithecus obscurus

Cercopithecidae

VU, Vulnerable

Silvery lutung

Trachypithecus cristatus

Cercopithecidae

CompareFrançois' langur vs Gee's golden langurFrançois' langur vs Phayre's leaf monkeyFrançois' langur vs Capped langurFrançois' langur vs East Javan langur

• An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
  Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1
• Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
  Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf
• Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
  Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence).
• EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
  Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1
• Wikidata · CC0 1.0 · 2026-11-11
  Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service).
• Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
  Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).

@misc{francois_langur_2026,
  title = {François' langur (Trachypithecus francoisi)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/francois-langur},
  note = {Data as of 2026-11-11}
}