Lethe sicelis
In 3 days ~20% in a week ~30%
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nikko National Park | 🇯🇵 Japan |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Japanese Treebrown sighting in Osaka on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 179th most-seen of the 352 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.
June and August–October
In those months about 10% of wildlife watchers report a Japanese Treebrown in Osaka on a given day, against under 5% in July and November–May, the lowest months.
Between 3 and 6 am
Across all the parks we cover, that three-hour window holds the most Japanese Treebrown 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.
Among the best
Of the 2 cities where we can rate Japanese Treebrown sightings, Osaka ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Tokyo (Japan, about 10%).
Same family: Nymphalidae
The closest relatives of the Japanese Treebrown that you can see in Osaka (family Nymphalidae, Brush-footed Butterflies) are Tropical Fritillary (about 30%), Dot-Dash Sailer (about 10%) and Asian Comma (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Japanese Treebrown is recorded against all the insects logged in Osaka (12 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.
