Purple-Faced Langur Characteristics | Semnopithecus Vetulus Diet & Facts

Kingdom	Order	Family	Genus	Species
Animalia	Primates	Cercopithecidae	Semnopithecus	Semnopithecus vetulus

Purple-faced Langur Distribution

Purple-faced Langur Characteristics

The purple-faced langur^[1] (Semnopithecus vetulus), also called the purple-faced leaf monkey, is an Old World species native to Sri Lanka.

The fur can generally vary from blackish to grayish. The species tends to have short “pants” whitish to gray, rounded off by purplish-black faces with white sideburns.
Part of the back is raped in cream-colored fur, and the tail is also covered in a mix of black and white colors.
Feet and hands are also purple-black. The size varies depending on the subspecies. Adults typically weigh between 3.1 and 11.4 kilograms (6.8 and 25.1 pounds), with an average of 7.08 kilograms (15.6 pounds).
The smallest subspecies (S. v. nestor) usually weigh between 3.8 and 6 kilograms (8.4 and 13.2 pounds).
Other subspecies have recorded average weights of up to 7.8 kilograms (17 pounds) in females and 8.5 kilograms (19 pounds) in males, with exceptionally large langurs weighing up to 18 kilograms (40 pounds).
Purple-faced langurs have a pure white or off-white rump.

Purple Faced Langur

What Do Purple-faced Langurs Eat?

The Purple-faced Langur eats several plant matters but not limited tosup>^[¶]:

Purple-Faced Langur Facts

The purple-faced langur is found in the closed forests of Sri Lanka’s mountains and in the southwestern part of the country known as the ‘wetland’.
These langurs are primarily leaf-eating but will also feed on fruits, seeds, and flowers.
The loud barking call, especially of the highland subspecies, can be confused with the roar of a predator such as a leopard.
In mixed feeding groups, Purple-faced langurs were found to be dominated by gray-tufted langurs.
Defense calls are also accompanied by intense visual and locomotor displays.

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BioExplorer.net. (2024, November 20). Purple-faced Langur. Bio Explorer. https://www.bioexplorer.net/animals/mammals/monkeys/purple-faced-langur/.

Key References

^[1] – “A New Color Morph of the Southern Purple-faced Langur (Semnopithecus vetulus vetulus) from the Rainforests ofSouthwestern Sri Lanka”. Accessed November 04, 2022. Link.
^[¶] – Fricke, E.C., Svenning, J. Accelerating homogenization of the global plant-frugivore meta-network. Nature 585, 74-78 (2020). https://doi.org/10.1038/s41586-020-2640-y.

Purple-faced Langur