Telchinia issoria
In 3 days ~80% in a week >90%
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 2 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 3 | Taroko National Park | 🇹🇼 Taiwan |
Likely
About 40% of wildlife watchers report a Yellow Coster sighting in Cuc Phuong National Park on a given day, based on 35 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 16th most-seen of the 126 insects we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
June
In that month about 80% of wildlife watchers report a Yellow Coster in Cuc Phuong National Park on a given day, against under 5% in July, the lowest month.
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.
Yes
Of the 3 parks where we can rate Yellow Coster sightings, Cuc Phuong National Park has the highest daily chance: about 40%. Next come Doi Inthanon National Park (Thailand, about 20%) and Taroko National Park (Taiwan, about 10%).
Same family: Nymphalidae
The closest relatives of the Yellow Coster that you can see in Cuc Phuong National Park (family Nymphalidae, Brush-footed Butterflies) are Little Mapwing (about 50%), Himalayan Jester (about 50%) and Marbled Map (about 50%), 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 Cuc Phuong National Park (35 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.
