Rapala nissa
In 3 days ~30% in a week ~50%
Rapala nissa, commonly known as the common flash is a species of lycaenid or blue butterfly found in India. It was previously assigned to the genus Bidaspa. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Common Flash sighting in Beijing on a given day, based on 78 verified sightings from GBIF citizen-science data. It is the 35th most-seen of the 401 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
August
In that month about 30% of wildlife watchers report a Common Flash in Beijing on a given day, against under 5% in October to March, the lowest months. That is one of Beijing's wettest months, with about 110 mm of rain against almost none in January.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Common Flash sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Yes
Of the 2 cities where we can rate Common Flash sightings, Beijing has the highest daily chance: about 10%. Next come Nanjing (China, about 10%).
GBIF citizen-science records
It is estimated from how often the Common Flash is recorded against all the insects logged in Beijing (78 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.
