Theloderma stellatum
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~30% in a week ~60%
Theloderma stellatum, the Taylor's bug-eyed frog, purple-spotted warted frog, spotty warted tree frog, stellar bug-eyed frog, or Chantaburi bug-eyed tree frog is a species of frog in the family Rhacophoridae. It is found in Thailand, Cambodia, Laos, and Vietnam.
Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical periodically flooded lowland and montane forests between 0 and 1500 meters above sea level. This species deposits eggs in rain water collected in small tree holes; the tadpoles feed on the organic matter aggregated in a tannin-rich rain water. Notches aiming resin collection increase carrying capacity of the frogs providing additional breeding sites.
The IUCN classifies this frog as at least concern of extinction, but it does face some threat, mostly associated with habitat loss from logging and agriculture. The illegal harvesting of specific trees for the production of safrole oil also threatens this frog. Scientists also believe people may catch this frog to sell this has happened with other beautiful frogs in this genus.
The frog's range includes protected parks: Central Cardamoms Protected Forest, Phnom Samkos Wildlife Sanctuary, Khao Soi Daow Wildlife Sanctuary. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Yai National Park | 🇹🇭 Thailand |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Tonkin Bug-eyed Frog sighting in Khao Yai National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 10th most-seen of the 13 amphibians we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
January–February, April, August and November
In those months about 20% of wildlife watchers report a Tonkin Bug-eyed Frog in Khao Yai National Park on a given day, against under 5% in May–July, September–October and December, the lowest months.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Tonkin Bug-eyed Frog sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and at night.
Only Khao Yai National Park, in our data
Khao Yai National Park is the only park on Wallace's Line with enough records to rate Tonkin Bug-eyed Frog sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Tonkin Bug-eyed Frog is recorded against all the amphibians logged in Khao Yai National Park (9 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.
