Emerald Glass Frog

Emerald Glass Frog

Espadarana prosoblepon

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
20–30% · Possible
overall probability at Arenal Volcano National Park
52 Verified records at Arenal Volcano National Park
November Best month highest sighting rate
🌙 Nocturnal When it's active during nighttime hours (6pm–6am)

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. Wikipedia →

20–30% of wildlife watchers report a Emerald Glass Frog sighting in Arenal Volcano National Park, based on 52 days of visitor records from GBIF citizen-science data.

Closest Relatives at Arenal Volcano National Park

Reticulated Glass Frog
LC

Reticulated Glass Frog

🌙 Nocturnal Amphibian

Hyalinobatrachium valerioi

10–20% · With luck
Chiriqui Glass Frog
LC

Chiriqui Glass Frog

🌙 Nocturnal Amphibian

Teratohyla pulverata

5–10% · With luck
Ghost Glass Frog
LC

Ghost Glass Frog

🌙 Nocturnal Amphibian

Sachatamia ilex

5–10% · With luck
Dwarf Glass Frog
LC

Dwarf Glass Frog

🌙 Nocturnal Amphibian

Teratohyla spinosa

Insufficient data
Grainy Cochran Frog
LC

Grainy Cochran Frog

🌙 Nocturnal Amphibian

Cochranella granulosa

Insufficient data
Tatayo's Glass Frog
LC Endemic

Tatayo's Glass Frog

🌙 Nocturnal Amphibian

Hyalinobatrachium tatayoi

Insufficient data
Fleischmann's Glass Frog
LC

Fleischmann's Glass Frog

🌙 Nocturnal Amphibian

Hyalinobatrachium fleischmanni

Insufficient data
Red-eyed Treefrog
LC

Red-eyed Treefrog

🌙 Nocturnal Amphibian

Agalychnis callidryas

60–70% · Likely
Strawberry Poison-dart Frog
LC

Strawberry Poison-dart Frog

☀️ Diurnal Amphibian

Oophaga pumilio

40–50% · Likely
Warszewitsch's Frog

Warszewitsch's Frog

🌅 Crepuscular Amphibian

Lithobates warszewitschii

40–50% · Likely
Masked Tree Frog
LC

Masked Tree Frog

🌙 Nocturnal Amphibian

Smilisca phaeota

40–50% · Likely
Giant Marine Toad
LC

Giant Marine Toad

🌙 Nocturnal Amphibian

Rhinella horribilis

30–40% · Possible

📅 Monthly Probability

10–20
Jan
20–30
Feb
10–20
Mar
10–20
Apr
20–30
May
10–20
Jun
5–10
Jul
20–30
Aug
10–20
Sep
10–20
Oct
30–40
Nov
10–20
Dec

🌙 When They're Spotted

Most active during nighttime hours (6pm–6am) · across all parks (global)

🌙Nocturnal
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Chirripó National Park 🇨🇷 Costa Rica
30–40%
2 Arenal Volcano National Park 🇨🇷 Costa Rica
20–30%
3 Piedras Blancas National Park 🇨🇷 Costa Rica
20–30%
4 Monteverde Cloud Forest Reserve 🇨🇷 Costa Rica
10–20%
5 Braulio Carrillo National Park 🇨🇷 Costa Rica
10–20%
6 La Amistad International Park (Panama) 🇵🇦 Panama
5–10%
7 Tapantí-Macizo de la Muerte National Park 🇨🇷 Costa Rica
5–10%
8 Corcovado National Park 🇨🇷 Costa Rica
5–10%
9 Soberanía National Park 🇵🇦 Panama
5–10%
10 Utría National Natural Park 🇨🇴 Colombia
Insufficient data
11 Gandoca-Manzanillo Wildlife Refuge 🇨🇷 Costa Rica
Insufficient data
12 Darién National Park 🇵🇦 Panama
Insufficient data
13 Cahuita National Park 🇨🇷 Costa Rica
Insufficient data
14 Manuel Antonio National Park 🇨🇷 Costa Rica
Insufficient data

Quick answers

What are the chances of seeing a Emerald Glass Frog in Arenal Volcano National Park?

About 20% of wildlife watchers report a Emerald Glass Frog sighting in Arenal Volcano National Park, based on 52 days of visitor records from GBIF citizen-science data.

When is the best time to see Emerald Glass Frog in Arenal Volcano National Park?

November has the highest sighting rate for Emerald Glass Frog in Arenal Volcano National Park in our monthly data.

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