Telchinia issoria
In 3 days ~40% in a week ~70%
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 2 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 3 | Taroko National Park | 🇹🇼 Taiwan |
With luck
About 10% of wildlife watchers report a Yellow Coster sighting in Taroko National Park on a given day, based on 17 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 111th most-seen of the 447 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
February–March and June–July
In those months about 20% of wildlife watchers report a Yellow Coster in Taroko National Park on a given day, against under 5% in April and October–January, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Yellow Coster sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 3
Of the 3 parks where we can rate Yellow Coster sightings, Taroko National Park ranks 3rd at about 10%. The best odds are in Cuc Phuong National Park (Vietnam, about 40%) and Doi Inthanon National Park (Thailand, about 20%).
Same family: Nymphalidae
The closest relatives of the Yellow Coster 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 Yellow Coster is recorded against all the insects logged in Taroko National Park (17 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.
