Delacour's Langur

Kingdom Order Family Genus Species
Animalia Primates Cercopithecidae Trachypithecus Trachypithecus delacouri
IUCN Status: Critically-Endangered
  • Common Name: Delacour’s Langur
  • Taxonomy Classification Year: 1932
  • Monkey Size: 57 to 62 cm (22 to 24 in)
  • Skin Color(s): Black
  • Habitat: Rainforest
  • Diet: Herbivorous
  • Native Countries: Vietnam

Delacour’s Langur Distribution

Delacour’s Langur Characteristics

The Delacour’s langur[1], also known as Delacour’s Lutung, is an endangered Lutung native to northern Vietnam.

  • Delacour’s langurs are known for the distinct patches of white fur on their thighs that contrast with their black fur.
  • Females also have a patch of white fur close to their genitalia. Like its relatives ​​in the Langur and Lutung families, the Delacour’s langur has tufts of gray hair on its cheeks and a tuft on its head.
  • Like many of its relatives, baby Delacour’s langur has bright orange fur for the first 4 months of life.
  • This odd feature has been the subject of several scientific theories and studies.
  • You might think bright colors would make the baby more visible to predators, but the color seems to help babies.

Delacour’s Langur Facts

  • The species is named after Jean Théodore Delacour, a French-American ornithologist.
  • Delacour’s langurs prefer rocky habitats and live in “karst forests, ” basically tropical forests with limestone caves and cliffs.
  • They are among the few mammals referred to as trogloxenes – animals that spend most of their lives in burrows.
  • Any adult in the group can look around, quickly spot the infants and move to protect them when danger is detected.
  • The color patterns of the Delacour langur give the monkey its local name, “Vooc quan đùi trang“, which is Vietnamese for “white pants langur“.

Suggested Reading: Kinds of Monkeys

Cite This Page

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BioExplorer.net. (2022, December 07). Delacour’s Langur. Bio Explorer. https://www.bioexplorer.net/animals/mammals/monkeys/delacours-langur/.
BioExplorer.net. "Delacour’s Langur" Bio Explorer, 07 December 2022, https://www.bioexplorer.net/animals/mammals/monkeys/delacours-langur/.
BioExplorer.net. "Delacour’s Langur" Bio Explorer, December 07 2022. https://www.bioexplorer.net/animals/mammals/monkeys/delacours-langur/.
Key References
  • [1]“DELACOUR’S LANGUR”. Accessed November 24, 2022. Link.

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