The average body mass for an adult male hanuman langur is between 9 and 20 kilograms, and for the female it is between 7.5 and 18 kilograms. The pelage color for this species ranges from gray to brown (Fleagle, 1988). This species has a sacculated stomach to assist in the breakdown of cellulose.
The hanuman langur is found in the countries of Bangladesh, Bhutan, Burma, China, India, Nepal, and Pakistan. This species is found in a variety of habitats, including scrublands, rainforests, and in cities; the hanuman langur regularly is found in urban areas.
The hanuman langur is a folivorous species, but will also consume fruits, flowers, and cultivated crops. In some populations cultivated crops and "hand-outs" from people constitute a large portion of the diet. They can eat the seeds and the fruit from the Strychnos plant which is toxic to humans. This species forages mostly in the early morning and just before nightfall. The hanuman langur is a semi-terrestrial and diurnal species.
The hanuman langur moves through the forest and on the ground quadrupedally (Fleagle, 1988). The hanuman langur also uses a leaping gait through the forest (Fleagle, 1988).