Purple-faced Lutung

Purple-faced Lutung

Semnopithecus vetulus

Silhouette: Kai R. Caspar · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered Endemic
Daily sighting probability ~60% · Likely
at Sinharaja Forest Reserve
89 Verified sightings at Sinharaja Forest Reserve From 2019 to 2026
107 Verified sightings across all 5 parks From 2019 to 2026
October Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Purple-faced Lutung

The purple-faced langur (Semnopithecus vetulus), also known as the purple-faced leaf monkey, is a species of Old World monkey that is endemic to Sri Lanka. The animal is a long-tailed arboreal species, identified by a mostly brown appearance, dark face (with paler lower face) and a very shy nature. The species was once highly prevalent, found in suburban Colombo and the "wet zone" villages (areas with high temperatures and high humidity throughout the year, whilst rain deluges occur during the monsoon seasons), but rapid urbanization has led to a significant decrease in the population level of the monkeys. It had traditionally been classified within the genus Trachypithecus but was moved to the genus Semnopithecus based on DNA evidence indicating that is it more closely related to the gray langurs.

In Sinhala, it is known as ශ්‍රී ලංකා කළු වඳුරා [kalu ʋaⁿd̪uraː] (Sri Lanka black monkey). In the purple-faced langur, males are usually larger than females. Males measure 50 to 67.1 cm (19.7 to 26.4 in) in head-body length with a tail of 67 to 85.1 cm (26.4 to 33.5 in). Females possess a head-body length 44.7 to 60 cm (17.6 to 23.6 in) and tail length of 58.9 to 82 cm... Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Sinharaja Forest Reserve 🇱🇰 Sri Lanka
~60%
2 Minneriya National Park 🇱🇰 Sri Lanka
~30%
3 Wilpattu National Park 🇱🇰 Sri Lanka
~20%
4 Horton Plains National Park 🇱🇰 Sri Lanka
Insufficient data
5 Yala National Park 🇱🇰 Sri Lanka
Insufficient data

Quick answers

What are the chances of seeing a Purple-faced Lutung in Sinharaja Forest Reserve?

About 60% of wildlife watchers report a Purple-faced Lutung sighting in Sinharaja Forest Reserve, based on 89 verified sightings from GBIF citizen-science data.

When is the best time to see Purple-faced Lutung in Sinharaja Forest Reserve?

October has the highest sighting rate for Purple-faced Lutung in Sinharaja Forest Reserve in our monthly data.

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