# Trimeresurus insularis

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Species of snake

Trimeresurus insularis Conservation status Least Concern (IUCN 3.1)[1] Scientific classification Kingdom: Animalia Phylum: Chordata Class: Reptilia Order: Squamata Suborder: Serpentes Family: Viperidae Genus: Trimeresurus Species: T. insularis Binomial name Trimeresurus insularis Kramer, 1977 Synonyms Trimeresurus albolabris insularis Kramer, 1977[2] Cryptelytrops insularis – Malhotra & Thorpe, 2004 Trimeresurus (Trimeresurus) insularis – David et al., 2011[3]

***Trimeresurus insularis***, [commonly](/source/Common_name) known as the **Indonesian pit viper**, **Lesser Sunda Islands pit viper**, **Komodo Island pit viper**, **Sunda white-lipped pit viper** or **red-tailed pit viper**, also popularly known as **blue pit viper**, **blue viper** or **blue insularis**, is a [species](/source/Species) of [venomous](/source/Venomous_snake) [pit viper](/source/Pit_viper) found in eastern [Java](/source/Java) and the [Lesser Sunda Islands](/source/Lesser_Sunda_Islands).[1][3]

## Description

The scalation includes 21 rows of [dorsal scales](/source/Dorsal_scales) at midbody, 156–164/156–167 [ventral scales](/source/Ventral_scales) in males/females, 70–75/54–59 [subcaudal scales](/source/Subcaudal_scales) in males/females, and 7–12 [supralabial scales](/source/Supralabial_scales).[4] Their color patterns are often found to be green or blue-green, with specific populations even containing yellow variants as well.[5]

		- green color variant of *Lesser Sunda Islands pit viper* on [Padar island](/source/Padar_(island)), Indonesia

## Geographic range

It is found in [Indonesia](/source/Indonesia) on eastern [Java](/source/Java), [Adonara](/source/Adonara), [Alor](/source/Alor_Archipelago), [Bali](/source/Bali), [Flores](/source/Flores), [Komodo](/source/Komodo_(island)), [Lombok](/source/Lombok), [Padar](/source/Padar%2C_Indonesia), [Rinca](/source/Rinca), [Romang](/source/Romang_(island)), [Rote](/source/Rote_Island), [Sumba](/source/Sumba), [Sumbawa](/source/Sumbawa), [Timor](/source/Timor) and [Wetar](/source/Wetar). They are also found in neighboring [Timor-Leste](/source/Timor-Leste).[1][3] The [type locality](/source/Type_locality_(biology)) given is "[Soe](/source/Soe%2C_Timor), Timor".[2][3] They are arboreal[3][6] and can be found in dry monsoon forests at elevations up to 1,200 m (3,900 ft) [above sea level](/source/Above_sea_level).[1][6]

## References

1. ^ [***a***](#cite_ref-IUCN_1-0) [***b***](#cite_ref-IUCN_1-1) [***c***](#cite_ref-IUCN_1-2) [***d***](#cite_ref-IUCN_1-3) Reilly, S.; Auliya, M.; Iskandar, D.; Vogel, G.; Lilley, R. (2021). ["*Trimeresurus insularis*"](https://www.iucnredlist.org/species/178038/1525328). *[IUCN Red List of Threatened Species](/source/IUCN_Red_List)*. **2021** e.T178038A1525328. [doi](/source/Doi_(identifier)):[10.2305/IUCN.UK.2021-3.RLTS.T178038A1525328.en](https://doi.org/10.2305%2FIUCN.UK.2021-3.RLTS.T178038A1525328.en). Retrieved 29 August 2022.

1. ^ [***a***](#cite_ref-McD99_2-0) [***b***](#cite_ref-McD99_2-1) McDiarmid RW, [Campbell JA](/source/Jonathan_A._Campbell), Touré T. 1999. *Snake Species of the World: A Taxonomic and Geographic Reference, Volume 1*. Herpetologists' League. 511 pp. [ISBN](/source/ISBN_(identifier)) [1-893777-00-6](https://en.wikipedia.org/wiki/Special:BookSources/1-893777-00-6) (series). [ISBN](/source/ISBN_(identifier)) [1-893777-01-4](https://en.wikipedia.org/wiki/Special:BookSources/1-893777-01-4) (volume).

1. ^ [***a***](#cite_ref-RDB_3-0) [***b***](#cite_ref-RDB_3-1) [***c***](#cite_ref-RDB_3-2) [***d***](#cite_ref-RDB_3-3) [***e***](#cite_ref-RDB_3-4) [*Trimeresurus insularis*](http://reptile-database.reptarium.cz/species.php?genus=Trimeresurus&species=insularis) at the [Reptarium.cz Reptile Database](http://reptile-database.reptarium.cz/). Accessed 27 April 2021.

1. **[^](#cite_ref-Gum04_4-0)** Gumprecht A, Tillack F, [Orlov NL](/source/Nikolai_Liutsianovich_Orlov), [Captain A](/source/Ashok_Captain), Ryabov S. 2004. *Asian Pitvipers*. GeitjeBooks. Berlin. 1st Edition. 368 pp. [ISBN](/source/ISBN_(identifier)) [3-937975-00-4](https://en.wikipedia.org/wiki/Special:BookSources/3-937975-00-4).

1. **[^](#cite_ref-5)** Jones, Brenda Kathryn; Saviola, Anthony J.; Reilly, Sean B.; Stubbs, Alexander L.; Arida, Evy; Iskandar, Djoko T.; McGuire, Jimmy A.; Yates, John R.; Mackessy, Stephen P. (2019-05-03). "Venom composition in a phenotypically variable pit viper (*Trimeresurus insularis*) across the Lesser Sunda Archipelago". *Journal of Proteome Research*. **18** (5): 2206–2220. [doi](/source/Doi_(identifier)):[10.1021/acs.jproteome.9b00077](https://doi.org/10.1021%2Facs.jproteome.9b00077). [PMID](/source/PMID_(identifier)) [30958009](https://pubmed.ncbi.nlm.nih.gov/30958009). [S2CID](/source/S2CID_(identifier)) [102347816](https://api.semanticscholar.org/CorpusID:102347816).

1. ^ [***a***](#cite_ref-McAllister_et_al._2019_6-0) [***b***](#cite_ref-McAllister_et_al._2019_6-1) McAllister, Chris T.; Bursey, Charles R.; Hartdegen, Ruston (January 2019). ["*Polydelphis anoura* Dujardin, 1845 (Nematoda: Ascaridoidea: Ascaridae) from the White-lipped Island Pitviper, *Trimeresurus insularis* (Ophidia: Viperidae), from Wetar Island, Indonesia"](https://bioone.org/journals/Comparative-Parasitology/volume-86/issue-1/1525-2647-86.1.61/Polydelphis-anoura-Dujardin-1845-Nematoda--Ascaridoidea--Ascaridae-from/10.1654/1525-2647-86.1.61.full). *Comparative Parasitology*. **86** (1): 61–64. [doi](/source/Doi_(identifier)):[10.1654/1525-2647-86.1.61](https://doi.org/10.1654%2F1525-2647-86.1.61). [S2CID](/source/S2CID_(identifier)) [92142125](https://api.semanticscholar.org/CorpusID:92142125).

## Further reading

- Kramer, E. 1977. *Zur Schlangenfauna Nepals*. Rev. suisse Zool. **84** (3): 721–761. (*Trimeresurus albolabris insularis*, p. 755.)

Taxon identifiers Trimeresurus insularis Wikidata: Q32809 Wikispecies: Trimeresurus insularis CoL: 7D5ML EoL: 47046290 GBIF: 2444811 iNaturalist: 146509 IRMNG: 11242669 ITIS: 1058477 IUCN: 178038 NCBI: 174297 RD: insularis Trimeresurus albolabris insularis Wikidata: Q20972163 GBIF: 6157478 ITIS: 635220

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