Heterixalus alboguttatus
Silhouette: Jose Carlos Arenas-Monroy · PhyloPic
In 3 days ~80% in a week >90%
Heterixalus alboguttatus (also known as the Starry Night Reed Frog) is a species of reed frog in the family Hyperoliidae endemic to Madagascar. Females possess a characteristic yellow-spotted dorsal patterning, while males can be almost uniformly white. It forms a species complex with H. boettgeri and H. madagascariensis, and is known to hybridize with H. boettgeri.
H. alboguttatus is generally found in open habitats, such as savannahs, degraded forest, swamps, grasslands and ricefields. Since these habitats are generally expanding in Madagascar due to human activity, it is not considered threatened.
Females of the species reach a snout-vent length of about 30-33mm, and the H. alboguttatus species breeds in a range of temporary and permanent water bodies, such as those found in the rice fields where the species may makes its habitat, with females producing around 500 black and white eggs, often perching on sunlit leaves of Pandanus plants and other plants during the breeding period. Wikipedia →
Recording0:04
Madagascar · 2019
© probreviceps · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Ranomafana National Park | 🇲🇬 Madagascar |
More parks will be added in future updates.
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Prague Zoo | 🇨🇿 Czechia | |
| 2 | Chester Zoo | 🇬🇧 United Kingdom | |
| 3 | Mandraka Reptile Farm | 🇲🇬 Madagascar | |
| 4 | Rákosův pavilon | 🇨🇿 Czechia | |
| 5 | Velemlokárium | 🇨🇿 Czechia |
Likely
About 40% of wildlife watchers report a Whitebelly Reed Frog sighting in Ranomafana National Park on a given day, based on 31 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 4th most-seen of the 14 amphibians we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
February
In that month about 80% of wildlife watchers report a Whitebelly Reed Frog in Ranomafana National Park on a given day, against under 5% in July, the lowest month. That is one of Ranomafana National Park's wettest months, with about 430 mm of rain against 80 mm in September.
Between 5 and 8 pm
Across all the parks we cover, that three-hour window holds the most Whitebelly Reed Frog sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Only Ranomafana National Park, in our data
Ranomafana National Park is the only park on Wallace's Line with enough records to rate Whitebelly Reed Frog sightings: about 40% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Whitebelly Reed Frog is recorded against all the amphibians logged in Ranomafana National Park (31 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.
