Scarthyla goinorum
Silhouette: Dmitry Bogdanov (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~40% in a week ~70%
Scarthyla goinorum, also known commonly as the Madre de Dios treefrog and the Tarauaca snouted treefrog, is a species of frog in the family Hylidae. The species is endemic to South America. The specific name, goinorum (genitive plural), is in honor of American herpetologists Coleman J. Goin and Olive B. Goin, who were husband and wife.
Scarthyla goinorum is found in Bolivia, Brazil, Colombia, and Peru. The natural habitats of Scarthyla goinorum are subtropical or tropical moist lowland forests, rivers, and intermittent rivers. Scarthyla goinorum is threatened by habitat loss.
Bokermann WCA (1962). "Cuatro nuevos hylidos del Brasil (Amphibia, Salientia, Hylidae)". Neotropicas, notas zoológicas sudamericanos, Buenos Aires 8: 81–91. (Hyla goinorum, new species). (in Spanish). Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tambopata National Reserve | 🇵🇪 Peru |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Slender Tree Frog sighting in Tambopata National Reserve on a given day, based on 14 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 25th most-seen of the 44 amphibians we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
June
In that month about 30% of wildlife watchers report a Slender Tree Frog in Tambopata National Reserve on a given day, against under 5% in March–May and November–January, the lowest months. That is one of Tambopata National Reserve's driest months, with about 80 mm of rain against 420 mm in February.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Slender Tree Frog sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Only Tambopata National Reserve, in our data
Tambopata National Reserve is the only park on Wallace's Line with enough records to rate Slender Tree Frog sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Hylidae
The closest relatives of the Slender Tree Frog that you can see in Tambopata National Reserve (family Hylidae, Hylid Tree Frogs) are Giant Broad-headed Treefrog (about 40%), Map Tree Frog (about 20%) and Puerto Maldonado Snouted Tree Frog (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Slender Tree Frog is recorded against all the amphibians logged in Tambopata National Reserve (14 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
