Eurytides callias
Daily sighting probability ~10% · With luck
at Yasuní National Park

In 3 days ~20% in a week ~40%

6 Verified sightings at Yasuní National Park From 2019 to 2026
6 In 1 park
June Best month
☀️ Diurnal When it's spotted

About the Eurytides callias

Eurytides callias is a butterfly of the family Papilionidae. It is found in French Guiana, Brazil (Amazonas), southern Venezuela (Yavita, Rio Ocamo, Rio Cunucunuma), eastern Ecuador (Napo) and Peru. It is a large butterfly with a wingspan around 85 mm, white in colour with a slightly pointed apex with two long thin tails at the posterior. The forewings have a brown apex and a brown border. The hind legs show blue lunules in the brown border and a red anal spot Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Yasuní National Park 🇪🇨 Ecuador
~10%

More parks will be added in future updates.

Before you go

What are the chances of seeing a Eurytides callias in Yasuní National Park?

With luck

About 10% of wildlife watchers report a Eurytides callias sighting in Yasuní National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 140th most-seen of the 203 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.

When is the best time to see a Eurytides callias in Yasuní National Park?

June

In that month about 20% of wildlife watchers report a Eurytides callias in Yasuní National Park on a given day, against under 5% in March–April and August–January, the lowest months.

What time of day is best to see a Eurytides callias?

Between 10 am and 1 pm

Across all the parks we cover, that three-hour window holds the most Eurytides callias sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Where else can you see a Eurytides callias?

Only Yasuní National Park, in our data

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

Where does the Eurytides callias sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Eurytides callias is recorded against all the insects logged in Yasuní National Park (6 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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