Black and White Langur

• Common Name: Black-and-white Langur
• Taxonomy Classification Year: 1992
• Monkey Size: 42 to 59 cm (16.5 to 23 in)
• Skin Color(s): Black and white
• Habitat: Rainforest
• Diet: Herbivorous
• Native Countries: Indonesia

The black-and-white langur^[1] is a primate species in the Cercopithecidae family.

• Like all members of the Presbytis genus, black-and-white langurs have tiny snouts and poorly developed eyebrow ridges.
• In addition, they have extended frontal legs and relatively longer hind legs, consistent with their preferred mode of locomotion, jumping, and brachiating.
• Black and white langurs are distinguished by the distinct patches of white fur on their thighs that contrast with their black fur.
• Also, females have a patch of white fur close to their genitals.

• It was formerly thought to be a subspecies of the Presbytis melalophos (Black-crested Sumatran langur). Still, the genetic analysis indicated they were separate species.
• The Black-and-white langur is endemic to the Indonesian island – Sumatra. It is listed as Data Deficient (DD) by the IUCN.
• They live in groups consisting of one male and 5 to 7 females. Generally, groups with smaller home ranges are more territorial than groups with more extensive home ranges.
• The scientific name of the species, Presbytis, is derived from a Greek word meaning “old woman, ” referring specifically to the withered features of the monkey.
• Black and white langurs contribute to healthy ecosystems by dispersing the seeds of their plant-based diet via their feces.