Question 1

What are the chances of seeing a Japanese Common Grass Yellow in Seoul?

Accepted Answer

With luck. About 10% of wildlife watchers report a Japanese Common Grass Yellow sighting in Seoul on a given day, based on 19 verified sightings from GBIF citizen-science data. It is the 170th most-seen of the 525 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.

Question 2

When is the best time to see a Japanese Common Grass Yellow in Seoul?

Accepted Answer

July to November. In those months about 10% of wildlife watchers report a Japanese Common Grass Yellow in Seoul on a given day, against under 5% in December to June, the lowest months. Those are among Seoul's wettest months, with about 170 mm of rain a month against 20 mm in January.

Question 3

What time of day is best to see a Japanese Common Grass Yellow?

Accepted Answer

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.

Question 4

Is Seoul the best place to see a Japanese Common Grass Yellow?

Accepted Answer

9th of 9. Of the 9 cities where we can rate Japanese Common Grass Yellow sightings, Seoul ranks 9th at about 10%. The best odds are in Nagoya (Japan, about 30%), Osaka (Japan, about 20%) and Suzhou (China, about 20%).

Question 5

Which relatives of the Japanese Common Grass Yellow live in Seoul?

Accepted Answer

Same family: Pieridae. The closest relatives of the Japanese Common Grass Yellow that you can see in Seoul (family Pieridae, Whites, Yellows, and Sulphurs) are Small White (about 20%), Indian Cabbage White (about 20%) and Colias poliographus (about 10%), with each one's daily chance of a sighting.

Question 6

Where does the Japanese Common Grass Yellow sighting chance come from?

Accepted Answer

GBIF citizen-science records. It is estimated from how often the Japanese Common Grass Yellow is recorded against all the insects logged in Seoul (19 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.

#	Park	Country	Daily sighting probability
1	Nikko National Park	🇯🇵 Japan	~20%
2	Taroko National Park	🇹🇼 Taiwan	~10%

#	City	Country	Daily sighting probability
1	Nagoya	🇯🇵 Japan	~30%
2	Osaka	🇯🇵 Japan	~20%
3	Suzhou	🇨🇳 China	~20%
4	Tokyo	🇯🇵 Japan	~20%
5	Nanjing	🇨🇳 China	~10%
6	Fukuoka	🇯🇵 Japan	~10%
7	Sendai	🇯🇵 Japan	~10%
8	Shanghai	🇨🇳 China	~10%
9	Seoul	🇰🇷 South Korea	~10%

Japanese Common Grass Yellow

About the Japanese Common Grass Yellow

Recent sightings of Japanese Common Grass Yellow in Seoul

Global Distribution

Parks Where Found

Cities Where Found

Closest Relatives at Seoul

Small White

Indian Cabbage White

Colias poliographus

Asian Green-Veined White

Yellow Tip

Asian Comma

Pale Grass Blue

Fall Webworm Moth

Short-Tailed Blue

Box Tree Moth

Large Copper

Common Straight Swift

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