Sumatran flying squirrel
Hylopetes winstoni (Sody, 1949)
The sumatran flying squirrel (Hylopetes winstoni) is a species in the family Sciuridae, order Rodentia. Recorded adults weigh about 170.8 g. Its IUCN Red List status is Data Deficient.
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Quick facts about the sumatran flying squirrel
- Weight
- 170.8 gsrc for Weight
- Length
- Not recorded
- Lifespan
- Not recorded
- Diet
- Herbivoresrc for Diet
- Main food
- Not recorded
- Habitat
- Not recorded
- Young per litter or clutch
- Not recorded
- Active
- At night (nocturnal)src for Active
- Lifestyle
- Arborealsrc for Lifestyle
- Conservation status
- Data Deficient (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the sumatran flying squirrel live?
Not recorded
What is the sumatran flying squirrel?
The Sumatran flying squirrel (Hylopetes winstoni) is a flying squirrel only found on the island of Sumatra. It is listed as data deficient on the IUCN red list. Originally discovered in 1949, it is known only from a single specimen. It is a nocturnal, arboreal creature, spending most of its life in the canopy. The Sumatran flying squirrel is threatened by a restricted range and habitat loss due to logging.
Unlike most other flying squirrels, it does not have a membrane connecting to its tail.
From the Wikipedia article “Sumatran flying squirrel” (en.wikipedia.org/w/index.php?title=Sumatran_flying_squirrel&oldid=1359119651), 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 sumatran flying squirrel endangered?
The sumatran flying squirrel is listed as Data Deficient on the IUCN Red List: it has too little data for its risk to be assessed.
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Data Deficient species. What the categories mean.
How is the sumatran flying squirrel classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderRodentia
- familySciuridae
- genusHylopetes
- SpeciesHylopetes winstoni (Sody, 1949)
Other names and names in other languages (8)
- poletuška sumaterskáCzech
- SumatragleithörnchenGerman
- sumatranliituriFinnish
- スマトラクサビオモモンガJapanese
- Sumatraanse Vliegende EekhoornDutch
- drzewolotka sumatrzańskaPolish
- Суматранская летягаRussian
- กระรอกบินเล็กสุมาตราThai
Relatives of the sumatran flying squirrel
Other species in the same genus Hylopetes.

Particolored flying squirrel
Hylopetes alboniger

Indochinese flying squirrel
Hylopetes phayrei

Palawan flying squirrel
Hylopetes nigripes
Sipora flying squirrel
Hylopetes sipora
Bartel's flying squirrel
Hylopetes bartelsi

Red-cheeked flying squirrel
Hylopetes spadiceus
CompareSumatran flying squirrel vs Particolored flying squirrelSumatran flying squirrel vs Indochinese flying squirrelSumatran flying squirrel vs Palawan flying squirrelSumatran flying squirrel vs Sipora flying squirrel
Common questions
Answered only where our data holds the answer.
How big is the sumatran flying squirrel?
An adult sumatran flying squirrel weighs 170.8 g, according to values recorded on Wikidata.
Is the sumatran flying squirrel endangered?
The sumatran flying squirrel is listed as Data Deficient on the IUCN Red List, meaning it has too little data for its risk to be assessed.
What kind of animal is the sumatran flying squirrel?
The sumatran flying squirrel (Hylopetes winstoni) belongs to the family Sciuridae in the order Rodentia.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- 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 - 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).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Sumatran flying squirrel (Hylopetes winstoni). Retrieved from https://creaturedata.com/animals/sumatran-flying-squirrel
“Sumatran flying squirrel (Hylopetes winstoni).” CreatureData, 2026, https://creaturedata.com/animals/sumatran-flying-squirrel.
@misc{sumatran_flying_squirrel_2026,
title = {Sumatran flying squirrel (Hylopetes winstoni)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/sumatran-flying-squirrel},
note = {Data as of 2026-11-11}
}