Hestina assimilis
In 3 days ~20% in a week ~40%
Hestina assimilis, the red ring skirt, is a species of butterfly in the family Nymphalidae found in Asia. It is generally of large size, and is named for the row of red submarginal spots on the hindwing of summer-generation adults. The species is saprophagous, with adults feeding on tree sap, rotting fruit and dung rather than nectar.
The species is native to northern Vietnam, southern and eastern continental China, the Korean Peninsula and adjacent islands, and to the Amami Islands of Japan, where the endemic subspecies H. a. shirakii occurs. A separate population of the continental nominate subspecies became established in central Honshu in the late 1990s and is treated in Japan as an invasive alien species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taroko National Park | 🇹🇼 Taiwan |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Red Ring Skirt sighting in Taroko National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 315th most-seen of the 447 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report a Red Ring Skirt in Taroko National Park on a given day, against under 5% in April–May and August–February, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Red Ring Skirt sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Taroko National Park, in our data
Taroko National Park is the only park on Wallace's Line with enough records to rate Red Ring Skirt sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Nymphalidae
The closest relatives of the Red Ring Skirt that you can see in Taroko National Park (family Nymphalidae, Brush-footed Butterflies) are Yellow Emperor (about 40%), Common Palmfly (about 30%) and Common Mapwing (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Red Ring Skirt is recorded against all the insects logged in Taroko National Park (7 verified sightings from 2019 to 2026), 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.
