Euthalia formosana
Daily sighting probability ~10% · With luck
at Taroko National Park

In 3 days ~40% in a week ~60%

23 Verified sightings at Taroko National Park From 2019 to 2026
23 In 1 park
July Best month
☀️ Diurnal When it's spotted

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Taroko National Park 🇹🇼 Taiwan
~10%

More parks will be added in future updates.

Before you go

What are the chances of seeing a Euthalia formosana in Taroko National Park?

With luck

About 10% of wildlife watchers report a Euthalia formosana sighting in Taroko National Park on a given day, based on 23 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 119th 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 60%, if each day is a fresh chance.

When is the best time to see a Euthalia formosana in Taroko National Park?

July, October and December

In those months about 20% of wildlife watchers report a Euthalia formosana in Taroko National Park on a given day, against under 5% in January–April and November, the lowest months.

What time of day is best to see a Euthalia formosana?

Between 10 am and 1 pm

Across all the parks we cover, that three-hour window holds the most Euthalia formosana sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Where else can you see a Euthalia formosana?

Only Taroko National Park, in our data

Taroko National Park is the only park on Wallace's Line with enough records to rate Euthalia formosana sightings: about 10% of wildlife watchers there report one on a given day.

Which relatives of the Euthalia formosana live in Taroko National Park?

Same family: Nymphalidae

The closest relatives of the Euthalia formosana 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.

Where does the Euthalia formosana sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Euthalia formosana is recorded against all the insects logged in Taroko National Park (23 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.

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