Cissia eous
In 3 days ~40% in a week ~70%
Cissia eous, locally known as the brown butterfly (Brazilian Portuguese: borboleta marrom), is a butterfly in the family Nymphalidae described by Arthur Gardiner Butler in 1867. It is found in the countries of Brazil, Argentina, Uruguay and Paraguay. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Serra dos Órgãos National Park | 🇧🇷 Brazil | |
| 2 | Iguazú National Park | 🇦🇷 Argentina | |
| 3 | Iguaçu National Park | 🇧🇷 Brazil | |
| 4 | Tijuca National Park | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | São Paulo | 🇧🇷 Brazil | |
| 2 | Campinas | 🇧🇷 Brazil | |
| 3 | Porto Alegre | 🇧🇷 Brazil | |
| 4 | Vitória | 🇧🇷 Brazil | |
| 5 | Belo Horizonte | 🇧🇷 Brazil | |
| 6 | Niterói | 🇧🇷 Brazil | |
| 7 | Rio de Janeiro | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Cissia eous sighting in São Paulo on a given day, based on 309 verified sightings from GBIF citizen-science data. It is the 14th most-seen of the 832 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
November to May
In those months about 20% of wildlife watchers report a Cissia eous in São Paulo on a given day, against under 5% in October, the lowest month.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Cissia eous sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 7 cities where we can rate Cissia eous sightings, São Paulo has the highest daily chance: about 10%. Next come Campinas (Brazil, about 10%) and Porto Alegre (Brazil, about 10%).
Same family: Nymphalidae
The closest relatives of the Cissia eous that you can see in São Paulo (family Nymphalidae, Brush-footed Butterflies) are White Peacock (about 20%), Juno Silverspot (about 20%) and Lansdorf's Crescent (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Cissia eous is recorded against all the insects logged in São Paulo (309 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.
