Three-striped night monkey
Aotus trivirgatus (Humboldt, 1811)
The three-striped night monkey (Aotus trivirgatus) is a species in the family Aotidae, order Primates. Recorded adults weigh 873 g to 900 g and live up to 25.3 years. Its IUCN Red List status is Least Concern.
Quick facts about the three-striped night monkey
- Weight
- 873 g – 900 gsrc for Weight
- Length
- Not recorded
- Lifespan
- 25.3 yearssrc for Lifespan
- Diet
- Herbivoresrc for Diet
- Longest recorded lifespan
- 30.1 years
- Main food
- Not recorded
- Habitat
- Not recorded
- Gestation
- 126 days – 142 dayssrc for Gestation
- Young per litter or clutch
- 1.06src for Young per litter or clutch
- Age at maturity
- 2 years – 2.25 yearssrc for Age at maturity
- Litters or clutches a year
- 1.34src for Litters or clutches a year
- Active
- At night (nocturnal)src for Active
- Lifestyle
- Arborealsrc for Lifestyle
- Conservation status
- Least Concern (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the three-striped night monkey live?
Not recorded
What is the three-striped night monkey?
The three-striped night monkey (Aotus trivirgatus), also known as northern night monkey or northern owl monkey, is one of several species of owl monkeys currently recognised. It is found in Venezuela and north-central Brazil.
Until 1983, all the owl monkeys were regarded as subspecies of Aotus trivirgatus, and all were referred to as douroucoulis. The use of the name douroucouli exclusively for the three-striped night monkey is not universally accepted; some authors use it for the entire genus, or for the grey-necked group of species within it (to which A. trivirgatus belongs).
Like other owl monkeys, the three-striped night monkey lives in woodlands including rain forest. It is mainly black, with striking white markings on its face. Its body size is 27–48 cm, and its tail is about the same length again. Adults weigh up to 1 kg. It has very large eyes, and is most active on moonlit nights, feeding on fruit, nuts, leaves, insects and other small invertebrates, and birds' eggs.
The three-striped night monkey forms pair bonds which are broken only by the death of one partner. It lives in family groups, with the immature young staying with their parents until sexual maturity at the age of 3 or 4. Normally only one infant is born, after a gestation period of a little over 4 months.
From the Wikipedia article “Three-striped night monkey” (en.wikipedia.org/w/index.php?title=Three-striped_night_monkey&oldid=1356901979), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the three-striped night monkey endangered?
The three-striped night monkey is listed as Least Concern on the IUCN Red List: it is not currently at risk of extinction.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Least Concern species.
How is the three-striped night monkey classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderPrimates
- familyAotidae
- genusAotus
- SpeciesAotus trivirgatus (Humboldt, 1811)
Synonyms Cheirogaleus commersonii, Nyctipithecus duruculi, Nyctipithecus felinus, Simia trivirgata
Other names and names in other languages (35)
- DouroucouliEnglish
- DouroucouliEnglish
- Humboldt's night monkeyEnglish
- Humboldt's night monkeyEnglish
- Night monkeyEnglish
- Night monkeyEnglish
- Northern night monkeyEnglish
- Northern night monkeyEnglish
- Northern night monkeyEnglish
- Northern owl monkeyEnglish
- Northern owl monkeyEnglish
- Owl monkeyEnglish
- Owl monkeyEnglish
- Three-striped gray night monkeyEnglish
- Three-striped gray night monkeyEnglish
- قرد الليل ذو الخطوط-الثلاثةArabic
- mirikina obecnáCzech
- MirikinaGerman
- Dreistreifen-NachtaffeGerman
- Östlicher Graukehl-NachtaffeGerman
- Östlicher GraukehlnachtaffeGerman
- Mono De NocheSpanish
- Mono NocturnoSpanish
- yöapinaFinnish
- Douroucouli communFrench
- フンボルトヨザルJapanese
- DoeroecoeliDutch
- GrijsneknachtaapjeDutch
- ponocnica trójpręgowaPolish
- Macaco Da NoitePortuguese
- Macaco-da-noitePortuguese
- Macaco-da-noite-do-nortePortuguese
- МирикинаRussian
- DurukuliTurkish
- 夜猴Chinese
Catalogue of LifeWikipediaiNaturalistTAXREFWikidataIUCN Red List
Relatives of the three-striped night monkey
Other species in the same genus Aotus.
Azara's night monkey
Aotus azarae
Gray-bellied night monkey
Aotus lemurinus
Peruvian night monkey
Aotus miconax
Black-headed night monkey
Aotus nigriceps
Spix's night monkey
Aotus vociferans
Gray-legged night monkey
Aotus griseimembra
CompareThree-striped night monkey vs Azara's night monkeyThree-striped night monkey vs Gray-bellied night monkeyThree-striped night monkey vs Peruvian night monkeyThree-striped night monkey vs Black-headed night monkey
Common questions
Answered only where our data holds the answer.
How big is the three-striped night monkey?
An adult three-striped night monkey weighs 873 g – 900 g, according to values recorded on Wikidata.
Is the three-striped night monkey endangered?
The three-striped night monkey is listed as Least Concern on the IUCN Red List, meaning it is not currently at risk of extinction.
How long does the three-striped night monkey live?
The three-striped night monkey has a recorded lifespan of 25.3 years.
How long is the three-striped night monkey pregnant?
The recorded gestation period is 126 days – 142 days.
What kind of animal is the three-striped night monkey?
The three-striped night monkey (Aotus trivirgatus) belongs to the family Aotidae in the order Primates.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1 - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
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Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Three-striped night monkey (Aotus trivirgatus). Retrieved from https://creaturedata.com/animals/three-striped-night-monkey
“Three-striped night monkey (Aotus trivirgatus).” CreatureData, 2026, https://creaturedata.com/animals/three-striped-night-monkey.
@misc{three_striped_night_monkey_2026,
title = {Three-striped night monkey (Aotus trivirgatus)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/three-striped-night-monkey},
note = {Data as of 2026-11-11}
}