Long-haired Spider Monkey
Ateles belzebuth
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassMammalia (Mamífers)
- OrderPrimates
- FamilyAtelidae (Spider, Howler, and Woolly Monkeys)
- GenusAteles (Spider Monkeys)
- SpeciesAteles belzebuth (Long-haired Spider Monkey)
The white-bellied spider monkey (Ateles belzebuth), also known as the white-fronted or long-haired spider monkey, is an endangered species of spider monkey, a type of New World monkey. It is found in the north-western Amazon in Colombia, Ecuador, Venezuela, Peru and Brazil, ranging as far south as the lower Ucayali River and as far east as the Branco River. In the past, the Peruvian, brown and white-cheeked spider monkeys have been treated as subspecies of A. belzebuth. As presently defined, the white-bellied spider monkey is monotypic. It has a whitish belly and a pale patch on the forehead, which, despite its common name, often is orange-buff, though this might be due to dirt and other stainers. They live in groups of 20 to 40 individuals, splitting into small parties of 1 to 9 when in activity. Wikipedia →
20–30% of wildlife watchers report a Long-haired Spider Monkey sighting in Yasuní National Park, based on 41 days of visitor records from GBIF citizen-science data.
Closest Relatives at Yasuní National Park
Common Woolly Monkey
Lagothrix lagothricha
Colombian Red Howler Monkey
Alouatta seniculus
Ecuadorian Squirrel Monkey
Saimiri macrodon
Golden-mantled Tamarin
Leontocebus tripartitus
White-tailed Titi
Plecturocebus discolor
Western Pygmy Marmoset
Cebuella pygmaea
Marañón white-fronted capuchin
Cebus yuracus
Napo Saki
Pithecia napensis
Black-mantled Tamarin
Leontocebus nigricollis
Noisy Night Monkey
Aotus vociferans
Lucifer Titi
Cheracebus lucifer
Miller's Saki
Pithecia milleri
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
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 | Yasuní National Park | 🇪🇨 Ecuador | |
| 2 | Cuyabeno Wildlife Reserve | 🇪🇨 Ecuador | |
| 3 | Sierra de la Macarena National Park | 🇨🇴 Colombia |
Quick answers
What are the chances of seeing a Long-haired Spider Monkey in Yasuní National Park?
About 25% of wildlife watchers report a Long-haired Spider Monkey sighting in Yasuní National Park, based on 41 days of visitor records from GBIF citizen-science data.
When is the best time to see Long-haired Spider Monkey in Yasuní National Park?
October has the highest sighting rate for Long-haired Spider Monkey in Yasuní National Park in our monthly data.