Heliconius ethilla
In 3 days ~60% in a week ~90%
Heliconius ethilla, the ethilia longwing, is a butterfly of the family Nymphalidae. It was described by Jean-Baptiste Godart in 1819. It is found from Panama to southern Brazil. The habitat consists of marginal forests. The wingspan is 60–70 mm. The forewings are orange with a black margin and four black spots. The hindwings are orange with two black stripes.
The larvae feed on Passiflora species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Iguazú National Park | 🇦🇷 Argentina | |
| 2 | Iguaçu National Park | 🇧🇷 Brazil | |
| 3 | Serra dos Órgãos National Park | 🇧🇷 Brazil | |
| 4 | Chapada Diamantina National Park | 🇧🇷 Brazil | |
| 5 | Tijuca National Park | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Curitiba | 🇧🇷 Brazil | |
| 2 | Porto Alegre | 🇧🇷 Brazil | |
| 3 | Vitória | 🇧🇷 Brazil | |
| 4 | São Paulo | 🇧🇷 Brazil | |
| 5 | Fortaleza | 🇧🇷 Brazil | |
| 6 | Niterói | 🇧🇷 Brazil | |
| 7 | Rio de Janeiro | 🇧🇷 Brazil | |
| 8 | Belo Horizonte | 🇧🇷 Brazil |
Possible
About 30% of wildlife watchers report an Ethilia Longwing sighting in Iguazú National Park on a given day, based on 78 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 31st most-seen of the 306 insects we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
May–June and August
In those months about 40% of wildlife watchers report an Ethilia Longwing in Iguazú National Park on a given day, against about 10% in January, March and October, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Ethilia Longwing sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 5 parks where we can rate Ethilia Longwing sightings, Iguazú National Park has the highest daily chance: about 30%. Next come Iguaçu National Park (Brazil, about 20%) and Serra dos Órgãos National Park (Brazil, about 20%).
Same genus: Heliconius
The closest relatives of the Ethilia Longwing that you can see in Iguazú National Park (genus Heliconius, Longwings and Heliconians) are Red Postman (about 40%) and Heliconius aliphera (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Ethilia Longwing is recorded against all the insects logged in Iguazú National Park (78 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.
