Sylvia's Tree Frog

Sylvia's Tree Frog

Cruziohyla sylviae

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

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~20% · Possible
at Braulio Carrillo National Park
33 Verified sightings at Braulio Carrillo National Park From 2019 to 2026
172 Verified sightings across all 12 parks From 2019 to 2026
July Best month highest sighting rate
☀️🌙 Day & Night When it's spotted Active throughout day and night

About the Sylvia's Tree Frog

Cruziohyla sylviae, also known as Sylvia's tree frog, is a large colourful species of tree frog from Central America. People have seen it between 30 and 1600 meters above sea level. The species was described in 2018 by zoologist Andrew Gray, and is named after his granddaughter. It can be distinguished from the closely related C. calcarifer (Splendid Tree Frog) by having small green lichen-like markings on its dorsal surfaces rather than white or pale blue spots and lacking characteristic dark ventral markings found on the under-thighs of C. calcarifer which are characteristic of only that species of Cruziohyla. The species is also easily identified by having a large external eardrum (tympanum), which is almost the same size as the eye, compared to an eardrum half its size, as seen in C. calcarifer. DNA analysis places C. sylviae genetically closer to its sister species, C. craspedopus, than to the true C. calcarifer described by George A. Boulenger in 1902. The adult male frog measures 44.3 to 67.0 mm in snout-vent length and the adult female frog 73.5 to 88.2 mm.

C. sylviae occurs from Panama to Honduras, where it lives in primary... Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Gandoca-Manzanillo Wildlife Refuge 🇨🇷 Costa Rica
~50%
2 Braulio Carrillo National Park 🇨🇷 Costa Rica
~20%
3 Cahuita National Park 🇨🇷 Costa Rica
~20%
4 Tenorio Volcano National Park 🇨🇷 Costa Rica
~10%
5 Soberanía National Park 🇵🇦 Panama
~10%
6 Arenal Volcano National Park 🇨🇷 Costa Rica
~10%
7 La Amistad International Park (Panama) 🇵🇦 Panama
<5%
8 San Lorenzo Protected Forest 🇵🇦 Panama
Insufficient data
9 Bastimentos Island National Marine Park 🇵🇦 Panama
Insufficient data
10 Darién National Park 🇵🇦 Panama
Insufficient data
11 Monteverde Cloud Forest Reserve 🇨🇷 Costa Rica
Insufficient data
12 Tapantí-Macizo de la Muerte National Park 🇨🇷 Costa Rica
Insufficient data

Quick answers

What are the chances of seeing a Sylvia's Tree Frog in Braulio Carrillo National Park?

About 20% of wildlife watchers report a Sylvia's Tree Frog sighting in Braulio Carrillo National Park, based on 33 verified sightings from GBIF citizen-science data.

When is the best time to see Sylvia's Tree Frog in Braulio Carrillo National Park?

July has the highest sighting rate for Sylvia's Tree Frog in Braulio Carrillo National Park in our monthly data.

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