Sinictinogomphus clavatus
In 3 days ~20% in a week ~40%
Sinictinogomphus clavatus, the golden flangetail, is a species of dragonfly in the clubtail family Gomphidae. It is the only species in the genus Sinictinogomphus. S. clavatus is common over a large range from Nepal to Vietnam and eastern Russia. Its habitat is standing or still (lentic) water. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Golden Flangetail sighting in Hangzhou on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 126th most-seen of the 172 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
June to August
In those months about 10% of wildlife watchers report a Golden Flangetail in Hangzhou on a given day, against under 5% in September to May, the lowest months. Those are among Hangzhou's wettest months, with about 190 mm of rain a month against 65 mm in December.
Among the best
Of the 7 cities where we can rate Golden Flangetail sightings, Hangzhou ranks 5th at about 10%, level with the leaders once rounded. The best odds are in Nagoya (Japan, about 10%), Beijing (China, about 10%) and Nanjing (China, about 10%).
GBIF citizen-science records
It is estimated from how often the Golden Flangetail is recorded against all the insects logged in Hangzhou (7 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.
