Javan lutung (Trachypithecus auratus)

Javan lutung (Trachypithecus auratus) is a species of animal in the Cercopithecidae, medium-sized monkeys, head and body length 46-75 cm, tail 61-82 cm, weight 7 kg, two subspecies are East Javan langur (Trachypithecus auratus auratus) and West Javan langur (Trachypithecus auratus mauritius).

T. auratus is diurnal. Adult males and females generally have black or reddish body hair, but females have a yellowish white color around the genitals. Children have golden orange body hair.







Food is plants including leaves, fruits and flowers. This species also feeds on insect larvae. The diet consists of 15-27% unripe fruit and 10-15% ripe fruit. They may eat fruits primarily to obtain seeds and prefer leaves which are rich in protein and low in fiber.

Different groups will feed on the same food source without significant aggression. Adult males do not disproportionately feed as often as other group members, females and juveniles.

They live in groups of about 7-20 individuals, including one or two adult males. Females usually have only one cub at a time and help each other raise the cubs. However, female langurs are also very aggressive towards female langurs from other groups.

This species inhabits various types of forest including mangrove forest, coastal forest, freshwater swamp forest, lowland rain forest, tropical deciduous forest and mountain forest up to an elevation of 3500 meters. Also found in teak, rasamala, and acacia plantations.

TAXON

Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Mammalia
Subclass: Theria
Infraclass: Placentalia
Superorder: Euarchontoglires
Order: Primates
Suborder: Haplorhini
Infraorder: Simiiformes
Parvorder: Catarrhini
Family: Cercopithecidae
Subfamily: Colobinae
Tribe: Presbytini
Genus: Trachypithecus Reichenbach (1862)
Species: Trachypithecus auratus É.Geoffroy Saint-Hilaire (1812)

SYNONYMS

Cercopithecus auratus É. Geoffroy (1812)
Pithecus pyrrhus kohlbruggei Sody (1931: 349)
Pithecus pyrrhus sondaicus Robinson & Kloss (1919: 374)
Presbytes cristata Gray (1843: 3)
Presbytis auratus
Semnopithecus auratus
Semnopithecus Pyrrhus Horsfield (1823)
Simia Maura Schreber (1774: 107-108)
Trachypithecus pyrrhus stresemanni Pocock (1935: 931)

VERNACULAR NAME

Arabic: لنغور شرق جاوا
Chinese (simplified): 爪哇乌叶猴
Chinese (traditional): 烏葉猴
Czech: Hulman jávský
Dutch: Javaanse Langoer
English: Javan lutung, Ebony leaf monkey, Javan langur, Spangled ebony langur, West javan ebony langur
Finnish: Mustalanguri
French: Langur de Java, Semnopithèque noir, Semnopithèque étoilé
German: Schwarzer Haubenlangur
Greek: Λανγκούρ της Ιάβας
Hungarian: Fekete langur
Indonesian: Lutung budeng, Lutung jawa
Italian: Presbite di Giava, Presbite di Giava orientale
Japanese: ジャワルトン
Java: Budêng
Norwegian: Javalangur
Polish: Lutung jawajski
Russian: Блестящий гульман
Spanish: Lutung de Java
Thai: ค่างชวา
Yogyakarta: Budêng

Aryo Bandoro
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