Vietnamese Bug-eyed Frog

Vietnamese Bug-eyed Frog

Theloderma vietnamense

Silhouette: Jose Carlos Arenas-Monroy · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~30% · Possible
at Cat Tien National Park
27 Verified sightings at Cat Tien National Park From 2019 to 2026
27 Verified sightings across 1 park From 2019 to 2026
June Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Vietnamese Bug-eyed Frog

Theloderma vietnamense, the South Vietnamese bug-eyed frog or South Vietnamese bug eye frog, is a frog in the family Rhacophoridae. It is endemic to Vietnam, Cambodia, and Laos. It has been observed no higher than 1400 meters above sea level.

This frog has been found in dense, mixed evergreen-deciduous forests in lowlands, hills, and montane habitats. This frog has occasionally been observed in secondary forest. This frog is closely associated with water-filled holes in trees, which they use to breed and sometimes shelter during the day.

During the breeding season, the male frogs perch on plants near the tree holes and call to the female frogs. The female frogs enter the tree holes and lay eggs above the waterline. When the eggs hatch, the tadpoles fall into the water. Two or three female frogs may lay eggs in the same hole with the same male frog.

The IUCN does name some threats to this frog, mostly associated with habitat loss associated with agriculture, especially for cash crops like rubber, coffee, and tea. They also believe people may collect this frog to sell in the international trade because that has happened to similarly beautiful frogs.

The frog's range includes many protected parks, including Phu Quoc National Park, Nui Ong Nature Reserve, Vinh Cuu Nature Reserve, Kon Ka Kinh Nature Reserve, Kon Cha Rang Nature Reserve, Dong Nai Bioshpere Reserve, and others. Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Cat Tien National Park 🇻🇳 Vietnam
~30%

More parks will be added in future updates.

Quick answers

What are the chances of seeing a Vietnamese Bug-eyed Frog in Cat Tien National Park?

About 30% of wildlife watchers report a Vietnamese Bug-eyed Frog sighting in Cat Tien National Park, based on 27 verified sightings from GBIF citizen-science data.

When is the best time to see Vietnamese Bug-eyed Frog in Cat Tien National Park?

June has the highest sighting rate for Vietnamese Bug-eyed Frog in Cat Tien National Park in our monthly data.

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