Microhyla heymonsi
Silhouette: Vijay Karthick · PhyloPic
In 3 days ~10% in a week ~30%
Microhyla heymonsi, also known as the dark-sided chorus frog or the Taiwan rice frog, is a species of narrow-mouthed frog found in northeastern India, southern China, Taiwan, and Southeast Asia south to the Malay Peninsula and Sumatra as well as the Great Nicobar Island. It was originally described from Taiwan.
As microhylids in general, Microhyla heymonsi is a small frog: males reach 16–21 mm (0.6–0.8 in) and females 22–26 mm (0.9–1.0 in) in snout-vent length. The dorsal colour is pinkish or greyish above with a black lateral band extending from the snout tip to the groin and entirely covering the sides of the head. It inhabits a variety of disturbed areas as well as secondary vegetation. It breeds in temporary rain puddles, paddy fields, ditches, marshes and slow-flowing streams. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 2 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 3 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 4 | Khao Yai National Park | 🇹🇭 Thailand | |
| 5 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 6 | Khao Sok National Park | 🇹🇭 Thailand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nanjing | 🇨🇳 China | |
| 2 | Hangzhou | 🇨🇳 China | |
| 3 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 4 | Bangkok | 🇹🇭 Thailand | |
| 5 | Singapore | 🇸🇬 Singapore |
Rare
Under 5% of wildlife watchers report an Arcuate-spotted Pygmy Frog sighting in Singapore on a given day, based on 32 verified sightings from GBIF citizen-science data. It is the 8th most-seen of the 20 amphibians we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
March and December–January
In those months about 10% of wildlife watchers report an Arcuate-spotted Pygmy Frog in Singapore on a given day, against under 5% in February and April–November, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Arcuate-spotted Pygmy Frog sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
5th of 5
Of the 5 cities where we can rate Arcuate-spotted Pygmy Frog sightings, Singapore ranks 5th at under 5%. The best odds are in Nanjing (China, about 20%), Hangzhou (China, about 10%) and Kuala Lumpur (Malaysia, about 10%).
GBIF citizen-science records
It is estimated from how often the Arcuate-spotted Pygmy Frog is recorded against all the amphibians logged in Singapore (32 verified sightings), 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.
