Island pit viper (Trimeresurus insularis)
Snakes · Difficulty: Expert
Key facts and care guidance for Island pit viper (Trimeresurus insularis) (origin: Java, Bali und Kleine Sundainseln (Lombok, Sumbawa, Komodo, Flores, Sumba, Timor, Wetar u. a.) — trockener Monsunwald bis 1200 m). Adult size around 60–90 cm. Life expectancy 10–15 years. The values below are carefully researched guidance.
Short answers
Island pit viper: How big does the enclosure need to be?
From 90×45×70 cm (minimum size per the 1997 expert report, arboreal bamboo pit vipers).
Island pit viper: What temperature does it need?
Daytime 25–30 °C, basking spot 30–31 °C, at night 21–23 °C.
Island pit viper: Does it need UVB lighting?
UVB: Weak UVB recommended.
Island pit viper: How long do they live?
Life expectancy: 10–15 years.
Island pit viper: Is it suitable for beginners?
No – better suited to experienced keepers (difficulty: Expert).
Climate
- Daytime temperature
- 25–30 °C
- Night temperature
- 21–23 °C
- Basking spot
- 30–31 °C
- Humidity
- 70–85 %
- UVB
- Weak UVB recommended
Enclosure
- Minimum size
- from 90×45×70 cm (minimum size per the 1997 expert report, arboreal bamboo pit vipers)
- Substrate
- Coco humus, climbing branches, planting
Feeding
- Food
- Small frozen-thawed mice
- Feeding interval
- adults every 10–14 days
Key facts
- Adult size
- 60–90 cm
- Life expectancy
- 10–15 years
- Origin
- Java, Bali und Kleine Sundainseln (Lombok, Sumbawa, Komodo, Flores, Sumba, Timor, Wetar u. a.) — trockener Monsunwald bis 1200 m
- Protection status
- VENOMOUS – a dangerous animal under German state law
- Brumation
- None
- Cohabitation
- Keep them singly. Snakes are solitary and do not seek company — a shared hide is competition for the best spot, not social behaviour. The concrete reason is the feeding accident: if two animals grab the same food item, one can swallow the other along with it. On top of that, once they are kept together you can no longer tell which animal has eaten and which is losing weight. For breeding, put them together under supervision and separate them again afterwards.
Notes
It occurs in a green and a brilliant blue colour form – the blue one is particularly in demand in captivity. Requirements as for T. albolabris.
Do you keep this species?
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Related species
- Gumprecht's green pit viper (Trimeresurus gumprechti) – Expert
- Hagen's pit viper (Trimeresurus hageni) – Expert
- Mangrove pit viper (Trimeresurus purpureomaculatus) – Expert
- Sumatran pit viper (Trimeresurus sumatranus) – Expert
- White-lipped pit viper (Trimeresurus albolabris) – Expert
- Savanna vine snake (Thelotornis capensis) – Expert
- Egyptian cobra (Naja haje) – Expert
- Egyptian saw-scaled viper (Echis pyramidum) – Expert
What you need to start
To keep Island pit viper (Trimeresurus insularis) you typically need: a suitable enclosure (from 90×45×70 cm (minimum size per the 1997 expert report, arboreal bamboo pit vipers)), substrate (Coco humus, climbing branches, planting), a heat source with a thermostat, UVB lighting, thermometer and hygrometer, a water dish and hides. You will find equipment in the Reptoria marketplace.
The complete, interactive care database is in the Reptoria app.
Last updated: 9 October 2026 · Editor: Reptoria editorial team · Sources include: https://reptile-database.reptarium.cz/species?genus=Trimeresurus&species=insularis, https://en.wikipedia.org/wiki/Trimeresurus_insularis, https://en.wikipedia.org/wiki/Trimeresurus_albolabris
All values are non-binding guidance and do not replace expert advice. Research thoroughly from several sources before acquiring and keeping an animal, and observe the applicable law (species and animal protection in particular).