Eurema mandarina
In 3 days ~30% in a week ~60%
Eurema mandarina, also known by its common name Japanese common grass yellow, is a species from the genus Eurema. It is a coliadine butterfly. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nikko National Park | 🇯🇵 Japan | |
| 2 | Taroko National Park | 🇹🇼 Taiwan |
With luck
About 10% of wildlife watchers report a Japanese Common Grass Yellow sighting in Fukuoka on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 19th most-seen of the 26 insects 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.
February
In that month about 30% of wildlife watchers report a Japanese Common Grass Yellow in Fukuoka on a given day, against under 5% in May–June, August–September and November–January, the lowest months. That is one of Fukuoka's driest months, with about 90 mm of rain against 360 mm in July.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Japanese Common Grass Yellow sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
6th of 9
Of the 9 cities where we can rate Japanese Common Grass Yellow sightings, Fukuoka ranks 6th at about 10%. The best odds are in Nagoya (Japan, about 30%), Osaka (Japan, about 20%) and Suzhou (China, about 20%).
GBIF citizen-science records
It is estimated from how often the Japanese Common Grass Yellow is recorded against all the insects logged in Fukuoka (5 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.
