Engystomops petersi
Silhouette: Luke Larter, based on photo by Amanda Lea · PhyloPic
In 3 days ~60% in a week ~90%
Engystomops petersi (common name: Peters' dwarf frog) is a species of frog in the family Leptodactylidae. It is found in Amazonian Colombia, Ecuador, and Peru. It is morphologically similar to its sibling species, Engystomops freibergi, and for a period the latter was considered to be a junior synonym of Engystomops petersi. Taxonomy and classification of this species is constantly changing due to the continual evolution of behavioral isolation and rapid speciation in the region. There are also records from the Guianas that have not yet been allocated to either species. Divergence of these two species seems to have been driven by behavioural isolation related to male call characteristics more than geographic isolation.
The genus Engystomops is part of the family Leptodactylid. Previously, the genus Engystomops was grouped in with other Amazonian genera like Eupemphix and Physalaemus. These names are routinely exchanged making it hard to characterize differences among different species. Previously, Eupemphix paraensis, Eupemphix schereri, and Engystomops petersi were considered to be distinct species, however morphological analyses of these frogs revealed that they were... Wikipedia →
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Ecuador · 2025
© Marc Anderson · XC979883 · CC BY-NC-ND 4.0
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French Guiana · 2023
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Ecuador · 2026
© ceiselr · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Yasuní National Park | 🇪🇨 Ecuador |
More parks will be added in future updates.
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Refugio Silvestre Yanacocha | 🇪🇨 Ecuador | |
| 2 | Yanacocha Animal Rescue Centre | 🇪🇨 Ecuador |
Possible
About 30% of wildlife watchers report a Painted Forest Toadlet sighting in Yasuní National Park on a given day, based on 44 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 9th most-seen of the 49 amphibians we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
November
In that month about 50% of wildlife watchers report a Painted Forest Toadlet in Yasuní National Park on a given day, against under 5% in August, the lowest month.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Painted Forest Toadlet sightings with a recorded time, and nearly all of them come between 6 pm and 6 am: it is mostly seen at night.
Only Yasuní National Park, in our data
Yasuní National Park is the only park on Wallace's Line with enough records to rate Painted Forest Toadlet sightings: about 30% of wildlife watchers there report one on a given day.
Same family: Leptodactylidae
The closest relatives of the Painted Forest Toadlet that you can see in Yasuní National Park (family Leptodactylidae, Southern Frogs) are Smoky Jungle Frog (about 40%), Painted Antnest Frog (about 20%) and Perez's Snouted Frog (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Painted Forest Toadlet is recorded against all the amphibians logged in Yasuní National Park (44 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.
