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

Indian shot (Canna indica)

Puspa midra or Indian shot ( Canna indica ) is is plant species in Cannaceae, annual, shrub 0.5-2.5 meters high, depending on variety, erect stems, unbranched and leaf midrib arranged overlapping to form pseudostems and hermaphrodite flowers. C. indica forms a branched rhizome, 60 cm long which is divided into rounded segments and is covered in two stripes by pale green or purple scaly leaves. The rhizome has tubers that contain very large starch grains. The surface has transverse furrows, the underside appears white roots and numerous shoots. The leaves sit alternate and spiral or arranged in two rows, very large and divided into a leaf midrib, short stalk and blade. The strands are 30-60 cm long, 10-20 cm wide and have linear veins, green or purple-green, the base blunt or narrowly pointed and the apex immediately tapering or sharp. Hermaphrodite flowers, pedicels 0.2-1 cm long and red or yellow-orange, except in some cultivars 4.5-7.5 cm long. The sepals are triangular in shape a...

Guinea grass (Panicum maximum)

Guinea grass or buffalo grass or green panic ( Panicum maximum ) is a plant species in Poaceae, annual grasses, growing upright to form clumps, strong, cultivated in all tropical and subtropical regions for very high value as fodder. P. maximum reproduces in very large pols, fibrous roots penetrate into the soil, upright stems, green, 1-1.5 m tall and have smooth cavities for diameters up to 2.5 mm. Propagation is done vegetatively and generatively. Ribbon-shaped leaves with a pointed tip, very many, built in lines, green, 40-105 cm long, 10-30 mm wide, erect, branched, a white linear bone, often covered with a layer of white wax, rough surface by hair short, dense and spread. The flower grows at the end of a long and upright stalk, open with the main axis length to more than 25 cm and the length of the bunches down to 20 cm. Grains have a size of 3x4 mm and oval. Seeds have a length of 2.25-2.50 mm and each 1 kg contains 1.2 - 1.5 million seeds. Guinea grass has two varieties. P...

Indian rosewood (Dalbergia latifolia)

Sonokeling or Java palisandre or Indian rosewood ( Dalbergia latifolia ) is a species of plant in the Fabaceae, a large tree producing hardwood, medium weight and high quality, rounded leaves, thin and broad pods, highly adaptive, grows in dry and rocky landscapes with lots of sunlight. D. latifolia has medium to large size, cylindrical stems, up to 40 m high with a ring of up to 2 m, the bark is brownish gray and slightly cracked longitudinally. The crown is dense, dome-shaped and sheds leaves. The leaves are compound and pinnate oddly with 5-7 strands that have different sizes and appear alternately on the shaft. The leaves are round or elongated in width or heart, the upper surface is green and the surface is pale green. The flowers are small, 0.5-1 cm long and clustered in panicles. The pods are green to brown when ripe and are elongated lanceolate, pointed at the base and tip. The pods have 1-4 seeds which are soft and brownish. Indian rosewood grows at elevations below 600 m,...