Skip to main content

Javan lutung (Trachypithecus auratus)

Javan lutung or Javan langur or lutung budeng (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.

Dlium Javan lutung (Trachypithecus auratus)


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.

Lutung budeng 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.







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
Species: Trachypithecus auratus
Subspecies: Trachypithecus auratus auratus, Trachypithecus auratus mauritius

Popular Posts

Sea almond (Terminalia catappa)

Ketapang or tropical almond or beach almond or talisay tree or umbrella tree or sea almond ( Terminalia catappa ) is a species of plant in the Combretaceae, a shady tree, fast growing, forming a multilevel canopy, often used as a shade tree in gardens and on roadsides. T. catappa grows large, up to 40 meters in height and up to 1.5 meters in trunk, shady canopy with branches that grow flat and terraced, young trees often look like pagodas while old and large trees often have aerial roots up to 3 meters. The leaves are scattered, mostly at the end of the twig, rounded egg upside down, 8-38 cm long, 5-19 cm wide, the tip is wide, the base is narrow, the upper surface is smooth, green but turns red if to fall out and short stalks. The flowers are small, collected near the tips of the twigs, 8-25 cm long and green-yellow in color. The flowers are not crowned, the petals have five taju, are plate or bell shaped, 4-8 mm long and are white or cream in color. Stamens in two circles and arra...

Asian foxtail (Uraria crinita)

Asian foxtail or cat's tail bean ( Uraria crinita ) is a species of plant in Fabaceae, a perennial, upright shrub with woody stems at least at the base, up to 2 meters high in forests, agricultural land, waterways, used as a medicinal herb, green manure and sometimes planted in the garden as an ornamental plant. U. crinita has elongated leaves, rounded base, pointed tip, a bone in the middle with several pinnate veins, rough surface, dark green with white spots. Petiole short or less than 0.5 cm and brownish red. Compound flower in spike shape, purple and white triangular crown. Long flower stalk, erect, 15-20 cm long and only at the end of the flower. The crown slowly falls off and leaves behind a stalk that is shaped like coir or light yellow pads. Asian foxtail grows in dry grasslands, open forests, trash cans, roadsides, sandy areas and sometimes in deciduous forests, elevations of 0-1500 meters and does not grow in waterlogged places. The different parts are often used in t...

Brazilian vervain (Verbena brasiliensis)

Brazilian vervain ( Verbena brasiliensis ) is a species of plant in the Verbenaceae, an annual shrub with erect stems, up to 1 meter high, triangular or semi-spherical in shape with sharp corners, green, white-haired, lower branches in an opposite arrangement, branches above grows in an irregular formation. V. brasiliensis has elongated leaves, up to 20 cm long, up to 4 cm wide, sharp tip, deeply serrated or flat margins, dark green in color, a main vein in the middle and whitish in color, several minor veins laterally, rough and stiff surface. Inflorescences in panicles at the end of a long stalk up to 5 cm long. The flower petals are 3 mm long, 5 lobed and tubular in shape. The corolla is formed from fused petals and spreads open at the tip, only slightly longer than the calyx. Flowers have reproductive organs of both sexes. Superior and bicarpellary ovaries. The fruit is a schizocarp or dried fruit that splits when ripe. Wrapped in petals. Nutlets are triangular in cross-sec...