Raffles' banded langur (Presbytis femoralis), also known as the banded langur or the banded surili, is a species of primate in the family Cercopithecidae. It is endemic to the island of Sumatra in Indonesia.
Physical AppearanceRaffles' banded langur is a medium-sized primate, with a head-body length of 48–56 cm (19–22 in) and a tail length of 58–75 cm (23–30 in). The fur is long and shaggy, and is generally black or brown in color. The face is pale, and there is a distinctive white band across the forehead. The hands and feet are black, and the tail is white.
BehaviorRaffles' banded langur is a diurnal species, and is active during the day. It is a arboreal species, and spends most of its time in trees. It is a social species, and lives in groups of up to 30 individuals.
Raffles' banded langur lives in multi-male, multi-female groups. The groups are led by a dominant male, who is responsible for protecting the group from predators and other threats. The females in the group are responsible for raising the young.
Raffles' banded langur communicates using a variety of vocalizations, including grunts, squeals, and screams. It also uses body language to communicate, such as facial expressions and gestures.
Raffles' banded langur is a frugivore, and its diet consists mainly of fruit. It also eats leaves, flowers, and bark.
Habitat and DistributionRaffles' banded langur is found in the lowland rainforests of Sumatra. It is also found in some montane forests. The species is threatened by habitat loss and hunting.
ConservationRaffles' banded langur is listed as Vulnerable by the International Union for Conservation of Nature (IUCN). The species is threatened by habitat loss and hunting. Conservation efforts are underway to protect the species.
Call to ActionYou can help to protect the Raffles' banded langur by supporting conservation organizations that are working to protect the species. You can also help by raising awareness of the species and its threats.