Ortilia ithra
In 3 days ~60% in a week ~90%
Ortilia ithra, or the Ithra crescent, is a species of butterfly in the family Nymphalidae. It is native to broadleaf forests in South America from Brazil to Argentina. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Iguazú National Park | 🇦🇷 Argentina | |
| 2 | El Palmar National Park | 🇦🇷 Argentina | |
| 3 | Iguaçu National Park | 🇧🇷 Brazil | |
| 4 | Iberá National Park | 🇦🇷 Argentina |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Rosario | 🇦🇷 Argentina | |
| 2 | Buenos Aires | 🇦🇷 Argentina | |
| 3 | Montevideo | 🇺🇾 Uruguay | |
| 4 | Belo Horizonte | 🇧🇷 Brazil | |
| 5 | Curitiba | 🇧🇷 Brazil | |
| 6 | Cordoba | 🇦🇷 Argentina | |
| 7 | Porto Alegre | 🇧🇷 Brazil | |
| 8 | São Paulo | 🇧🇷 Brazil | |
| 9 | Rio de Janeiro | 🇧🇷 Brazil |
Possible
About 30% of wildlife watchers report an Ithra Crescent sighting in Iguazú National Park on a given day, based on 85 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 27th 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 October
In those months about 40% of wildlife watchers report an Ithra Crescent in Iguazú National Park on a given day, against under 5% in March, the lowest month.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Ithra Crescent 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 4 parks where we can rate Ithra Crescent sightings, Iguazú National Park has the highest daily chance: about 30%. Next come El Palmar National Park (Argentina, about 30%) and Iguaçu National Park (Brazil, about 20%).
Same genus: Ortilia
The closest relatives of the Ithra Crescent that you can see in Iguazú National Park (genus Ortilia) are Ortilia dicoma (about 10%) and Ortilia velica (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Ithra Crescent is recorded against all the insects logged in Iguazú National Park (85 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.
