Southern Sicklewing

Southern Sicklewing

Achlyodes thraso

Daily sighting probability ~20% · Possible
at Iguazú National Park

In 3 days ~50% in a week ~80%

54 Verified sightings at Iguazú National Park From 2019 to 2026
297 In all 6 parks
August Best month
☀️ Diurnal When it's spotted

About the Southern Sicklewing

Eantis thraso is a species of spread-wing skipper in the butterfly family Hesperiidae. It is found in Central America, South America, and the Caribbean. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Iguazú National Park 🇦🇷 Argentina
~20%
2 Cumbres de Monterrey National Park 🇲🇽 Mexico
~20%
3 Iguaçu National Park 🇧🇷 Brazil
~20%
4 Serra dos Órgãos National Park 🇧🇷 Brazil
~10%
5 Ostional Wildlife Refuge 🇨🇷 Costa Rica
~10%
6 Lago de Yojoa 🇭🇳 Honduras
~10%

Cities Where Found

# City Country Daily sighting probability
1 Porto Alegre 🇧🇷 Brazil
~10%
2 Manaus 🇧🇷 Brazil
~10%
3 Monterrey 🇲🇽 México
~10%
4 Curitiba 🇧🇷 Brazil
~10%
5 Vitória 🇧🇷 Brazil
~10%
6 São Paulo 🇧🇷 Brazil
~10%
7 San Antonio 🇺🇸 United States
<5%
8 Austin 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Southern Sicklewing in Iguazú National Park?

Possible

About 20% of wildlife watchers report a Southern Sicklewing sighting in Iguazú National Park on a given day, based on 54 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 48th most-seen of the 306 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.

When is the best time to see a Southern Sicklewing in Iguazú National Park?

May–June and August

In those months about 30% of wildlife watchers report a Southern Sicklewing in Iguazú National Park on a given day, against about 10% in March, the lowest month.

What time of day is best to see a Southern Sicklewing?

Between 10 am and 1 pm

Across all the parks we cover, that three-hour window holds the most Southern Sicklewing sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.

Is Iguazú National Park the best place to see a Southern Sicklewing?

Yes

Of the 6 parks where we can rate Southern Sicklewing sightings, Iguazú National Park has the highest daily chance: about 20%. Next come Cumbres de Monterrey National Park (Mexico, about 20%) and Iguaçu National Park (Brazil, about 20%).

Where does the Southern Sicklewing sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Southern Sicklewing is recorded against all the insects logged in Iguazú National Park (54 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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