Length not yet addedAtlas entry awaiting completion
Venom status
Venom classification not yet addedHuman effects: atlas summary awaiting completion
Known venom effects
Effects not yet summarised in this atlas
A conspicuous metallic orange-yellow stripe runs from the neck along the front of the body. The cited diagnosis reports no black striping on the back, head sides or underside of the tail. Its atlas account links 2 named island or island-group records to the source literature.
OccurrenceConfirmed
Islands named2
Natural history6 sourced topics
References3
Literature updated 2026-10-07 · Editorial review pending
Reserved for a contributor imageCredit and usage rights will accompany the image.
The illustrated collection
Adult & juvenile
Adult · study plate
Dendrelaphis flavescens
Image to follow
Reserved for a contributor imageCredit and usage rights will accompany the image.
Juvenile · study plate
Dendrelaphis flavescens
Image to follow
Reserved for a contributor imageCredit and usage rights will accompany the image.
Life stages will be labelled from the contributor’s information. Images alone do not establish identification or a locality record.
Media provenance
Every image carries its source.
Contributor images are forthcoming. Photographs and illustrations will retain their individual credits, permissions and evidence notes.
A closer look
Natural history & identification
Appearance & identification
A conspicuous metallic orange-yellow stripe runs from the neck along the front of the body. The cited diagnosis reports no black striping on the back, head sides or underside of the tail.
Literature documented · Diagnosis; Gaulke (1994), p. 138
Species-level database summary; literature review, not expert validation.
The cited account does not establish population-wide variation or the conditions at every Philippine locality.
Ecology & habitat
Gaulke’s observations placed the snakes on the floor of primary and secondary forest. This conflicts with a broad arboreal classification also reproduced in the database; both should not be collapsed into a single habitat label.
Literature documented · Comment: Habitat; Gaulke (1994)
Species-level database summary; literature review, not expert validation.
The cited account does not establish population-wide variation or the conditions at every Philippine locality.
Diet & foraging
One animal maintained in captivity for about a year accepted live geckos but refused mice and locusts. This observation does not establish the diet of wild populations.
Literature documented · Comment: Diet; captive animal SMF 75174
Species-level database summary; literature review, not expert validation.
The cited account does not establish population-wide variation or the conditions at every Philippine locality.
Reproduction
The species account records egg-laying reproduction. A verified Philippine clutch-size range, incubation interval and breeding calendar are not established here.
Reproductive mode reported for this named species.
Mode alone does not establish litter or clutch size, seasonal timing, or captive husbandry requirements.
Philippine distribution
The atlas records Dendrelaphis flavescens from these named Philippine areas: Sulu, Tawi-Tawi. These are literature areas rather than a continuous range boundary.
Literature documented · Existing checklist occurrence statement and distribution review
The original evidence level is retained.
A country listing cannot establish an island or a precise locality.
Taxonomic context
Dendrelaphis flavescens is retained in the atlas’s dated checklist under Colubridae. The authority is GAULKE 1994. Earlier names and the original source notes are preserved below for comparison.
Literature documented · Checklist identity and nomenclatural trail
Checklist verified 2026-09-05; not a newly revised taxonomic backbone.
Historical names can cover different biological concepts; synonyms should not be used to transfer records automatically.
Across the archipelago
Where this species is recorded
PhilippinesN ↑
Documented islands: gold · island groups: dashed circles
Island-level records · not continuous habitat coverage. Dashed circles locate groups, not individual observations.
Philippine distribution
Documented places
2 named islands / island groups
Select an island to read its distribution record and sources. Uncoloured islands are not evidence of absence.
Distribution record & sources
Philippines (Sulu Archipelago: (Bongao, Bubuan, Sanga-Sanga, Tawi-Tawi)
Type locality: Sanga Sanga, Sulu Archipelago,Philippines.
The atlas records Dendrelaphis flavescens from these named Philippine areas: Sulu, Tawi-Tawi. These are literature areas rather than a continuous range boundary.
Venom classification not yet added · Effects not yet summarised in this atlas
Observe from a distance. Do not handle, corner or capture a snake to identify it. An incomplete venom account is not evidence that a species is safe to handle.
After a suspected snakebite, keep the person still and arrange urgent medical care. Avoid tight tourniquets, cutting, suction and unproven remedies. Do not wait to identify the snake before seeking help.
Sulu Bronzeback, Sulu Islands Tree Snake · Sulu-Bronzenatter
Authority
GAULKE 1994
Year described
1994
Taxonomic status
Accepted species
Family
Colubridae
Genus
Dendrelaphis
Species epithet
flavescens
Persistent ID
PH-SERP-A9AA2BF6F5
Checklist checked
2026-09-05
Philippine occurrence
Status
Present
Confidence
Confirmed
Basis
2018 Philippine synopsis treatment plus current RDB listing
Islands named
Sulu, Tawi-Tawi
Range noteCountry/island text is not a range polygon or locality record.
Source distribution statement
Philippines (Sulu Archipelago: (Bongao, Bubuan, Sanga-Sanga, Tawi-Tawi)
Type locality: Sanga Sanga, Sulu Archipelago,Philippines.
Knowledge coverage
EndemismResearch pending
EcologyLiterature documented
VenomVenom classification not yet added Effects not yet summarised in this atlasDetailed research: Research pending
ConservationResearch pending
Names through time
Nomenclatural trail
Dendrelaphis caudolineatus flavescens GAULKE, 1994
Dendrelaphis flavescens — VAN ROOIJEN & VOGEL 2012
Dendrelaphis flavescens — WALLACH et al. 2014: 217
Dendrelaphis flavescens — LEVITON et al. 2018
Taxonomic and source notes
Behavior: diurnal
Habitat: fully arboreal (Harrington et al. 2018), but Gaulke 1994 says “all sighted specimens of D. c. flavescens were observed on the floor of primary and secondary forest.”
Diet: SMF 75174 was kept alive in a terrarium for about 12 months, feeding on live
geckos. Locusts and mice were not taken (Gaulke 1994).
There seem to be no live photos. Gaulke 1994 says “not a rare snake. In all, 10 specimens were sighted, but as it is a very fast snake,few were caught”.
References attached to this record
2026
The Reptile Database — species checklist, 17 June 2026
Dendrelaphis flavescens — The Reptile Database species account
Uetz, P.; Hallermann, J. et al. (editors)
Public species fields consulted for bounded biological summaries. Primary sources quoted within the database were not independently examined unless explicitly stated. The catalogue name may differ from the current source title.