Heliconius ethilla
In 3 days ~50% in a week ~80%
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 20% of wildlife watchers report an Ethilia Longwing sighting in Iguaçu National Park on a given day, based on 55 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 37th most-seen of the 279 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.
August
In that month about 40% of wildlife watchers report an Ethilia Longwing in Iguaçu National Park on a given day, against under 5% in March, the lowest month.
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.
2nd of 5
Of the 5 parks where we can rate Ethilia Longwing sightings, Iguaçu National Park ranks 2nd at about 20%. The best odds are in Iguazú National Park (Argentina, about 30%).
Same genus: Heliconius
The closest relatives of the Ethilia Longwing that you can see in Iguaçu National Park (genus Heliconius, Longwings and Heliconians) are Red Postman (about 30%) 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 Iguaçu National Park (55 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.
