Eresia lansdorfi
In 3 days ~20% in a week ~50%
Eresia lansdorfi, the false erato or Lansdorf's crescent, is a butterfly of the family Nymphalidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Iguazú National Park | 🇦🇷 Argentina | |
| 2 | Iguaçu National Park | 🇧🇷 Brazil | |
| 3 | Serra dos Órgãos National Park | 🇧🇷 Brazil | |
| 4 | Itatiaia National Park | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | São Paulo | 🇧🇷 Brazil | |
| 2 | Curitiba | 🇧🇷 Brazil | |
| 3 | Porto Alegre | 🇧🇷 Brazil | |
| 4 | Belo Horizonte | 🇧🇷 Brazil | |
| 5 | Campinas | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Lansdorf's Crescent sighting in Porto Alegre on a given day, based on 17 verified sightings from GBIF citizen-science data. It is the 100th most-seen of the 226 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
December
In that month about 20% of wildlife watchers report a Lansdorf's Crescent in Porto Alegre on a given day, against under 5% in February to July, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Lansdorf's Crescent sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 5
Of the 5 cities where we can rate Lansdorf's Crescent sightings, Porto Alegre ranks 3rd at about 10%. The best odds are in São Paulo (Brazil, about 20%) and Curitiba (Brazil, about 20%).
Same family: Nymphalidae
The closest relatives of the Lansdorf's Crescent that you can see in Porto Alegre (family Nymphalidae, Brush-footed Butterflies) are Themisto Amberwing (about 40%), Julia Heliconian (about 30%) and Ruddy Daggerwing (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Lansdorf's Crescent is recorded against all the insects logged in Porto Alegre (17 verified sightings), 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.
