Dione juno
In 3 days ~40% in a week ~60%
Dione juno, the Juno silverspot, juno longwing, or Juno heliconian, is a species of butterfly of the subfamily Heliconiinae in the family Nymphalidae found from southern United States to South America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Reserva de la Biosfera Mariposa Monarca | 🇲🇽 Mexico | |
| 2 | Montes Azules Biosphere Reserve | 🇲🇽 Mexico | |
| 3 | Ostional Wildlife Refuge | 🇨🇷 Costa Rica | |
| 4 | Yasuní National Park | 🇪🇨 Ecuador | |
| 5 | Cuyabeno Wildlife Reserve | 🇪🇨 Ecuador | |
| 6 | Lago de Yojoa | 🇭🇳 Honduras | |
| 7 | Volcán Barú National Park | 🇵🇦 Panama | |
| 8 | Iguazú National Park | 🇦🇷 Argentina | |
| 9 | Arenal Volcano National Park | 🇨🇷 Costa Rica | |
| 10 | Iguaçu National Park | 🇧🇷 Brazil | |
| 11 | La Amistad International Park (Panama) | 🇵🇦 Panama | |
| 12 | Monteverde Cloud Forest Reserve | 🇨🇷 Costa Rica | |
| 13 | Soberanía National Park | 🇵🇦 Panama | |
| 14 | Braulio Carrillo National Park | 🇨🇷 Costa Rica | |
| 15 | Manu National Park | 🇵🇪 Peru | |
| 16 | Tijuca National Park | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Quito | 🇪🇨 Ecuador | |
| 2 | Arequipa | 🇵🇪 Peru | |
| 3 | Puebla | 🇲🇽 México | |
| 4 | Curitiba | 🇧🇷 Brazil | |
| 5 | São Paulo | 🇧🇷 Brazil | |
| 6 | Mexico City | 🇲🇽 México | |
| 7 | Tegucigalpa | 🇭🇳 Honduras | |
| 8 | León | 🇲🇽 México | |
| 9 | San Luis Potosí | 🇲🇽 México | |
| 10 | San José | 🇨🇷 Costa Rica |
With luck
About 10% of wildlife watchers report a Juno Silverspot sighting in Ostional Wildlife Refuge on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 32nd most-seen of the 47 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 60%, if each day is a fresh chance.
September
In that month about 40% of wildlife watchers report a Juno Silverspot in Ostional Wildlife Refuge on a given day, against under 5% in August and October–June, the lowest months. That is one of Ostional Wildlife Refuge's wettest months, with about 410 mm of rain against 15 mm in February.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Juno Silverspot sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 16
Of the 16 parks where we can rate Juno Silverspot sightings, Ostional Wildlife Refuge ranks 3rd at about 10%. The best odds are in Reserva de la Biosfera Mariposa Monarca (Mexico, about 30%) and Montes Azules Biosphere Reserve (Mexico, about 20%).
GBIF citizen-science records
It is estimated from how often the Juno Silverspot is recorded against all the insects logged in Ostional Wildlife Refuge (8 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.
