{{Short description|Species of snake}} {{Speciesbox | image = White-lipped Island Pitviper, Komodo, ID-NT-MB, ID-NT, ID imported from iNaturalist photo 414496582.jpg | image_caption = | status = LC | status_system = IUCN3.1 | status_ref = <ref name=IUCN>{{cite iucn |author=Reilly, S. |author2=Auliya, M. |author3=Iskandar, D. |author4=Vogel, G. |author5=Lilley, R. |year=2021 |title=''Trimeresurus insularis'' |volume=2021 |article-number=e.T178038A1525328 |doi=10.2305/IUCN.UK.2021-3.RLTS.T178038A1525328.en |access-date=29 August 2022}}</ref> | genus = Trimeresurus | species = insularis | authority = Kramer, 1977 | synonyms = * ''Trimeresurus albolabris insularis'' <small>Kramer, 1977</small><ref name="McD99">McDiarmid RW, [[Jonathan A. Campbell|Campbell JA]], Touré T. 1999. ''Snake Species of the World: A Taxonomic and Geographic Reference, Volume 1''. Herpetologists' League. 511 pp. {{ISBN|1-893777-00-6}} (series). {{ISBN|1-893777-01-4}} (volume).</ref> * ''Cryptelytrops insularis'' <br /><small>&ndash; Malhotra & Thorpe, 2004</small> * ''Trimeresurus (Trimeresurus) insularis'' <small>&ndash; David et al., 2011</small><ref name="RDB"/> }}

'''''Trimeresurus insularis''''', [[common name|commonly]] 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]] of [[venomous snake|venomous]] [[pit viper]] found in eastern [[Java]] and the [[Lesser Sunda Islands]].<ref name=IUCN/><ref name="RDB"/>

==Description== The scalation includes 21 rows of [[dorsal scales]] at midbody, 156–164/156–167 [[ventral scales]] in males/females, 70–75/54–59 [[subcaudal scales]] in males/females, and 7–12 [[supralabial scales]].<ref name="Gum04">Gumprecht A, Tillack F, [[Nikolai Liutsianovich Orlov|Orlov NL]], [[Ashok Captain|Captain A]], Ryabov S. 2004. ''Asian Pitvipers''. GeitjeBooks. Berlin. 1st Edition. 368 pp. {{ISBN|3-937975-00-4}}.</ref> Their color patterns are often found to be green or blue-green, with specific populations even containing yellow variants as well.<ref>{{Cite journal|last1=Jones|first1=Brenda Kathryn|last2=Saviola|first2=Anthony J.|last3=Reilly|first3=Sean B.|last4=Stubbs|first4=Alexander L.|last5=Arida|first5=Evy|last6=Iskandar|first6=Djoko T.|last7=McGuire|first7=Jimmy A.|last8=Yates|first8=John R.|last9=Mackessy|first9=Stephen P.|date=2019-05-03|title=Venom composition in a phenotypically variable pit viper (''Trimeresurus insularis'') across the Lesser Sunda Archipelago |journal=Journal of Proteome Research|volume=18|issue=5|pages=2206–2220 |doi=10.1021/acs.jproteome.9b00077 |pmid=30958009 |s2cid=102347816 }}</ref>

{{image gallery |trimeresurus insularis.jpg |green color variant of ''Lesser Sunda Islands pit viper'' on [[Padar (island)|Padar island]], Indonesia }}

==Geographic range== It is found in [[Indonesia]] on eastern [[Java]], [[Adonara]], [[Alor Archipelago|Alor]], [[Bali]], [[Flores]], [[Komodo (island)|Komodo]], [[Lombok]], [[Padar, Indonesia|Padar]], [[Rinca]], [[Romang (island)|Romang]], [[Rote Island|Rote]], [[Sumba]], [[Sumbawa]], [[Timor]] and [[Wetar]]. They are also found in neighboring [[Timor-Leste]].<ref name=IUCN/><ref name="RDB"/> The [[Type locality (biology)|type locality]] given is "[[Soe, Timor|Soe]], Timor".<ref name="McD99"/><ref name="RDB"/> They are arboreal<ref name="RDB"/><ref name="McAllister et al. 2019"/> and can be found in dry monsoon forests at elevations up to {{convert|1200|m|abbr=on}} [[above sea level]].<ref name=IUCN/><ref name="McAllister et al. 2019">{{Cite journal|last1=McAllister|first1=Chris T.|last2=Bursey|first2=Charles R.|last3=Hartdegen|first3=Ruston|date=January 2019|title=''Polydelphis anoura'' Dujardin, 1845 (Nematoda: Ascaridoidea: Ascaridae) from the White-lipped Island Pitviper, ''Trimeresurus insularis'' (Ophidia: Viperidae), from Wetar Island, Indonesia |url=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 |journal=Comparative Parasitology|volume=86|issue=1|pages=61–64|doi=10.1654/1525-2647-86.1.61|s2cid=92142125 |url-access=subscription}}</ref>

==References== {{Reflist|refs= <ref name="RDB">{{NRDB species |genus=Trimeresurus |species=insularis |access-date=27 April 2021}}</ref> }}

==Further reading== * Kramer, E. 1977. ''Zur Schlangenfauna Nepals''. Rev. suisse Zool. '''84''' (3): 721–761. (''Trimeresurus albolabris insularis'', p.&nbsp;755.)

{{Taxonbar|from=Q32809}}

[[Category:Trimeresurus|insularis]] [[Category:Snakes of Asia]] [[Category:Snakes of Indonesia]] [[Category:Reptiles of Timor]] [[Category:Reptiles described in 1977]]

{{Snake-stub}} [[Category:Fauna of Java]] [[Category:Fauna of Bali]] [[Category:Fauna of Timor-Leste]] [[Category:Fauna of the Lesser Sunda Islands]]