Emerald Glass Frog

Emerald Glass Frog

Espadarana prosoblepon

Silhouette: Dmitry Bogdanov (vectorized by T. Michael Keesey) · PhyloPic

LCLeast ConcernNTVUENCR
Daily sighting probability ~10% · With luck
at La Amistad International Park (Panama)

In 3 days ~20% in a week ~40%

12 Verified sightings at La Amistad International Park (Panama) From 2019 to 2026
237 In all 9 parks
March Best month
🌙 Nocturnal When it's spotted

About the Emerald Glass Frog

Espadarana prosoblepon is a species of frog in the family Centrolenidae, commonly known as the emerald glass frog or Nicaragua giant glass frog. This species can be found in Ecuador, Colombia, Panama, Costa Rica, Nicaragua, and Honduras. Its natural habitats are lowland tropical forests and montane cloud forests. It is a nocturnal species occurring in low vegetation in mature forests only. It is not considered threatened overall by the IUCN although deforestation and pollution are potential threats, as is chytridiomycosis.

The word "prosoblepon" originates from the Greek words "proso" and "blepo", which respectively mean "forward, in front" and "see, look", and is thought to signify the frontal position of the eyes in the emerald glass frog.

Espadarana prosoblepon is listed as least concern according to IUCN in the red list category and criteria when it was assessed in 2020. It was listed as least concern because of its wide distribution, large population, and its improbable decline. The emerald glass frog has a lifespan of more than 5 years. It is physically described to be small, green, and may occasionally have dark spots on its back. It has a translucent... Wikipedia →

Sounds

Advertisement call0:22

Ecuador · 2018

© Marc Anderson · XC1078583 · CC BY-NC-ND 4.0

Recording0:20

Panama · 2025

© anuraots · iNaturalist · CC BY-NC 4.0

Recording0:19

Costa Rica · 2026

© carlos miguel solano · iNaturalist · CC BY-NC 4.0

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Chirripó National Park 🇨🇷 Costa Rica
~30%
2 Arenal Volcano National Park 🇨🇷 Costa Rica
~20%
3 Piedras Blancas National Park 🇨🇷 Costa Rica
~20%
4 Monteverde Cloud Forest Reserve 🇨🇷 Costa Rica
~10%
5 Braulio Carrillo National Park 🇨🇷 Costa Rica
~10%
6 Corcovado National Park 🇨🇷 Costa Rica
~10%
7 Tapantí-Macizo de la Muerte National Park 🇨🇷 Costa Rica
~10%
8 Soberanía National Park 🇵🇦 Panama
~10%
9 La Amistad International Park (Panama) 🇵🇦 Panama
~10%

Cities Where Found

# City Country Daily sighting probability
1 San José 🇨🇷 Costa Rica
~10%

Zoos & Centres Where Found

# Zoo / Centre Country
1 Monteverde Theme Park 🇨🇷 Costa Rica In captivity

Before you go

What are the chances of seeing an Emerald Glass Frog in La Amistad International Park (Panama)?

With luck

About 10% of wildlife watchers report an Emerald Glass Frog sighting in La Amistad International Park (Panama) on a given day, based on 12 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 17th most-seen of the 32 amphibians we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.

When is the best time to see an Emerald Glass Frog in La Amistad International Park (Panama)?

January, March–June and August–October

In those months about 10% of wildlife watchers report an Emerald Glass Frog in La Amistad International Park (Panama) on a given day, against under 5% in February, July and November–December, the lowest months.

What time of day is best to see an Emerald Glass Frog?

Between 7 and 10 pm

Across all the parks we cover, that three-hour window holds the most Emerald Glass Frog sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.

Is La Amistad International Park (Panama) the best place to see an Emerald Glass Frog?

9th of 9

Of the 9 parks where we can rate Emerald Glass Frog sightings, La Amistad International Park (Panama) ranks 9th at about 10%. The best odds are in Chirripó National Park (Costa Rica, about 30%), Arenal Volcano National Park (Costa Rica, about 20%) and Piedras Blancas National Park (Costa Rica, about 20%).

Which relatives of the Emerald Glass Frog live in La Amistad International Park (Panama)?

Same order: Anura

The closest relatives of the Emerald Glass Frog that you can see in La Amistad International Park (Panama) (order Anura, Frogs and Toads) are Strawberry Poison-dart Frog (about 50%), Green and Black Dart-poison Frog (about 30%) and Red-eyed Treefrog (about 30%), with each one's daily chance of a sighting.

Where does the Emerald Glass Frog sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Emerald Glass Frog is recorded against all the amphibians logged in La Amistad International Park (Panama) (12 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.

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