Purple-faced Lutung

Purple-faced Lutung

Semnopithecus vetulus

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Insufficient data
overall probability at Yala National Park
1 Verified records at Yala National Park
☀️ Diurnal When it's active during daytime hours (6am–6pm)

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). Wikipedia →

📅 Monthly Probability

📊

Fewer than 5 records of Purple-faced Lutung at Yala National Park — not enough to chart months honestly.

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Sinharaja Forest Reserve 🇱🇰 Sri Lanka
50–60%
2 Minneriya National Park 🇱🇰 Sri Lanka
20–30%
3 Wilpattu National Park 🇱🇰 Sri Lanka
20–30%
4 Horton Plains National Park 🇱🇰 Sri Lanka
Insufficient data
5 Yala National Park 🇱🇰 Sri Lanka
Insufficient data
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