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 30% of wildlife watchers report a Periander Metalmark sighting in Iguazú National Park on a given day, based on 78 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 29th 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.
January, May and November
In those months about 40% of wildlife watchers report a Periander Metalmark in Iguazú National Park on a given day, against about 10% in July and August, 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.
Yes
Of the 9 parks where we can rate Periander Metalmark sightings, Iguazú National Park has the highest daily chance: about 30%. Next come Iguaçu National Park (Brazil, about 20%) and Manu National Park (Peru, about 20%).
Same family: Riodinidae
The closest relatives of the Periander Metalmark that you can see in Iguazú National Park (family Riodinidae, Metalmark Butterflies) are Notheme eumeus (about 30%), Orange-Banded Metalmark (about 10%) and Nymula calyce (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 Iguazú National Park (78 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.
