
What is the Javan Lutung?
Javan Lutung refers to Trachypithecus auratus, in the genus Trachypithecus, family Cercopithecidae, and order Primates. The scientific name follows the accepted taxon in the GBIF Backbone Taxonomy. Common names can vary between places; the scientific name distinguishes this species from relatives.
What is known about the Javan Lutung?
Javan lutungs are usually glossy dark as adults, while young may be orange; age-related colour should not be mistaken for another species.
Read that fact alongside the scientific name and species source, not as proof from an unclear photograph. Populations, ages and taxonomic limits can differ; when identification is uncertain, record the broader group.
Evidence: Species account — background reading ↗
Habitat and field observations of the Javan Lutung
Javan lutungs are reported from primary and secondary forest, including coastal and mangrove sites. Young leaves are important food alongside fruit and flowers; the mix varies by habitat.
Evidence: GBIF species treatments — natural-history accounts ↗
How many Indonesian records name the Javan Lutung?
When checked on 2026-09-23, the GBIF search returned 445 human-observation records from Indonesia under this species name for 2016–2026. That is a count of indexed records, not an estimate of population, abundance or unique individuals. Observation effort can vary by location, and the count may change as records are added or identifications revised.
Evidence: GBIF occurrence search — Indonesia, human observations, 2016–2026 ↗
Where were observations reported?
Place labels appearing in the results include Jawa Barat, Jawa Timur, Bali. They are labels attached to records, not a complete range map or evidence that the species occurs only there. Some labels may be broad or inconsistent. Check the underlying records before using the location information for field decisions.
Evidence: GBIF occurrence search — Indonesia, human observations, 2016–2026 ↗
How can you observe the Javan Lutung?
Watch from a distance, do not feed, and avoid sharing precise locations of vulnerable dens or resting sites. Do not try to catch or touch wild mammals. A well-documented sighting helps others check the identification without turning one encounter into a conservation-status claim.
Explore related animals
To explore this group further, compare Javan Lutung with Silvered Leaf Monkey, Thomas’s Langur, Southern Pig-tailed Macaque. These links reflect a shared genus, family, order, class or catalogue group; taxonomic proximity does not imply identical habitat needs or conservation status.
Explore related habitats
These habitat relationships are supported by species sources in this guide. This is not a complete range map.
Sources & references
- GBIF Backbone Taxonomy — accepted taxon ↗
- GBIF occurrence search — Indonesia, human observations, 2016–2026 ↗
- GBIF species treatments — natural-history accounts ↗
- iNaturalist — exact species taxon and community observations ↗
- Species account — background reading ↗
References can change. Check dates and context in the original source.