Rhetus arcius
In 3 days ~40% in a week ~70%
Rhetus arcius, the long-tailed metalmark, s a species of Neotropical butterfly, first described in Carl Linnaeus' 1763 Centuria Insectorum. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Ostional Wildlife Refuge | 🇨🇷 Costa Rica | |
| 2 | Ría Lagartos Biosphere Reserve | 🇲🇽 Mexico | |
| 3 | Lago de Yojoa | 🇭🇳 Honduras | |
| 4 | Farallones de Cali National Natural Park | 🇨🇴 Colombia | |
| 5 | Cañón del Sumidero National Park | 🇲🇽 Mexico |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tegucigalpa | 🇭🇳 Honduras | |
| 2 | Cali | 🇨🇴 Colombia | |
| 3 | San Pedro Sula | 🇭🇳 Honduras | |
| 4 | Medellín | 🇨🇴 Colombia | |
| 5 | San José | 🇨🇷 Costa Rica | |
| 6 | San Salvador | 🇸🇻 El Salvador | |
| 7 | Guatemala City | 🇬🇹 Guatemala | |
| 8 | São Paulo | 🇧🇷 Brazil | |
| 9 | Rio de Janeiro | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Long-Tailed Metalmark sighting in Ría Lagartos Biosphere Reserve on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 60th most-seen of the 112 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.
December
In that month about 40% of wildlife watchers report a Long-Tailed Metalmark in Ría Lagartos Biosphere Reserve on a given day, against under 5% in January and March–October, the lowest months. That is one of Ría Lagartos Biosphere Reserve's driest months, with about 35 mm of rain against 150 mm in June.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Long-Tailed 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 5
Of the 5 parks where we can rate Long-Tailed Metalmark sightings, Ría Lagartos Biosphere Reserve ranks 2nd at about 10%. The best odds are in Ostional Wildlife Refuge (Costa Rica, about 20%).
Same order: Lepidoptera
The closest relatives of the Long-Tailed Metalmark that you can see in Ría Lagartos Biosphere Reserve (order Lepidoptera, Butterflies and Moths) are Pale-Banded Crescent (about 40%), Thecla bathildis (about 40%) and Glassy-Winged Skipper (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Long-Tailed Metalmark is recorded against all the insects logged in Ría Lagartos Biosphere Reserve (10 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.
