Neptis pryeri
In 3 days ~10% in a week ~20%
Neptis pryeri is a butterfly of the family Nymphalidae. It is found in China, North Asia, Korea and Japan. The length of the fore-wings is 21–30 mm. Adults are on wing from June to August. The larvae feed on Spiraea morrisonicola and Spiraea japonica. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Dot-Dash Sailer sighting in Tokyo on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 585th most-seen of the 1013 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Dot-Dash Sailer in Tokyo on a given day, so our monthly data shows no clear season.
3rd of 3
Of the 3 cities where we can rate Dot-Dash Sailer sightings, Tokyo ranks 3rd at under 5%. The best odds are in Osaka (Japan, about 10%) and Seoul (South Korea, under 5%).
GBIF citizen-science records
It is estimated from how often the Dot-Dash Sailer is recorded against all the insects logged in Tokyo (13 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.
