Rhetus periander
In 3 days ~60% in a week ~90%
Rhetus periander, the Periander metalmark or variable beautymark, is a butterfly of the family Riodinidae. It is found in most of Central and South America, ranging from Mexico to Brazil and Argentina. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Iguazú National Park | 🇦🇷 Argentina | |
| 2 | Iguaçu National Park | 🇧🇷 Brazil | |
| 3 | Manu National Park | 🇵🇪 Peru | |
| 4 | Serra dos Órgãos National Park | 🇧🇷 Brazil | |
| 5 | Tambopata National Reserve | 🇵🇪 Peru | |
| 6 | Lago de Yojoa | 🇭🇳 Honduras | |
| 7 | Cuyabeno Wildlife Reserve | 🇪🇨 Ecuador | |
| 8 | Yasuní National Park | 🇪🇨 Ecuador | |
| 9 | Soberanía National Park | 🇵🇦 Panama |
Possible
About 20% of wildlife watchers report a Periander Metalmark sighting in Iguaçu National Park on a given day, based on 72 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 30th most-seen of the 279 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.
January
In that month about 40% of wildlife watchers report a Periander Metalmark in Iguaçu National Park on a given day, against about 10% in July to September, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Periander Metalmark sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 9
Of the 9 parks where we can rate Periander Metalmark sightings, Iguaçu National Park ranks 2nd at about 20%. The best odds are in Iguazú National Park (Argentina, about 30%).
Same family: Riodinidae
The closest relatives of the Periander Metalmark that you can see in Iguaçu National Park (family Riodinidae, Metalmark Butterflies) are Notheme eumeus (about 30%), Nymula calyce (about 10%) and Pirascca sagaris (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Periander Metalmark is recorded against all the insects logged in Iguaçu National Park (72 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.
