Atrophaneura horishanus
In 3 days ~20% in a week ~50%
Atrophaneura horishana, the aurora batwing or aurora swallowtail, is a species of butterfly from the family Papilionidae that is found in Taiwan. The wingspan is 110–130 mm. The wings are black. The body has red hairs. There is a large red patch on the underside of each hindwing. The wing veins are bordered in white. 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 an Aurora Swallowtail sighting in Taroko National Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 272nd 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 50%, if each day is a fresh chance.
June–August and October–November
In those months about 10% of wildlife watchers report an Aurora Swallowtail in Taroko National Park on a given day, against under 5% in September and December–May, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Aurora Swallowtail sightings with a recorded time, and nearly all 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 Aurora Swallowtail sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Papilionidae
The closest relatives of the Aurora Swallowtail that you can see in Taroko National Park (family Papilionidae, Swallowtails and Parnassians) are Common Windmill (about 30%), Common Bluebottle (about 30%) and Common Mormon Swallowtail (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Aurora Swallowtail is recorded against all the insects logged in Taroko National Park (10 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.
