Phyllomedusa vaillantii
Silhouette: Dmitry Bogdanov (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~70% in a week >90%
The white-lined leaf frog (Phyllomedusa vaillantii) is a species of frog in the subfamily Phyllomedusinae. It is found in northern South America. Its natural habitats are subtropical or tropical moist lowland forest, subtropical or tropical swampland, rivers, and freshwater marshes. It is threatened by habitat loss.
The adult male frog measures 50.2 mm (1.98 in) to 57.5 mm (2.26 in) in snout-vent length and the adult female frog 68.8 mm (2.71 in) to 81.2 mm (3.20 in). Male and female frogs show notable sexual dimorphism in the shapes of their snouts.
The skin of the dorsum is mostly green with reddish-brown on the flanks and whitish or orange spots. This frog can have red, lavender, or orange color on the inner parts of its hind legs. The ventrum is light orange. This frog is arboreal and nocturnal in its habits. The female lays eggs during the rainiest part of the year. She builds a nest out of leaves hanging over a pond or other body of water. She lays the eggs in the nest with jelly over them to prevent desiccation. When the tadpoles hatch out of the eggs, they fall out of the nest into the water below. Sometimes the tadpoles breathe air during... Wikipedia →
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Ecuador · 2025
© Marc Anderson · XC1080530 · CC BY-NC-ND 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Manu National Park | 🇵🇪 Peru | |
| 2 | Yasuní National Park | 🇪🇨 Ecuador | |
| 3 | Cuyabeno Wildlife Reserve | 🇪🇨 Ecuador | |
| 4 | Tambopata National Reserve | 🇵🇪 Peru |
Likely
About 40% of wildlife watchers report a White-lined Leaf Frog sighting in Manu National Park on a given day, based on 85 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 2nd most-seen of the 67 amphibians we can rate there. Over three days the chance rises to about 70%, and over a week to over 90%, if each day is a fresh chance.
May
In that month about 50% of wildlife watchers report a White-lined Leaf Frog in Manu National Park on a given day, against about 20% in June, September and November, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most White-lined Leaf Frog sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Yes
Of the 4 parks where we can rate White-lined Leaf Frog sightings, Manu National Park has the highest daily chance: about 40%. Next come Yasuní National Park (Ecuador, about 30%) and Cuyabeno Wildlife Reserve (Ecuador, about 30%).
Same genus: Phyllomedusa
The closest relatives of the White-lined Leaf Frog that you can see in Manu National Park (genus Phyllomedusa, Monkey Frogs) are Black-eyed Monkey Frog (about 20%) and Waxy Monkey Treefrog (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the White-lined Leaf Frog is recorded against all the amphibians logged in Manu National Park (85 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.
