Long-Tailed Metalmark

Long-Tailed Metalmark

Rhetus arcius

Daily sighting probability ~10% · With luck
at San José

In 3 days ~30% in a week ~60%

45 Verified sightings at San José
39 In all 5 parks From 2019 to 2026
July Best month
☀️ Diurnal When it's spotted

About the Long-Tailed Metalmark

Rhetus arcius, the long-tailed metalmark, s a species of Neotropical butterfly, first described in Carl Linnaeus' 1763 Centuria Insectorum. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Ostional Wildlife Refuge 🇨🇷 Costa Rica
~20%
2 Ría Lagartos Biosphere Reserve 🇲🇽 Mexico
~10%
3 Lago de Yojoa 🇭🇳 Honduras
~10%
4 Farallones de Cali National Natural Park 🇨🇴 Colombia
~10%
5 Cañón del Sumidero National Park 🇲🇽 Mexico
~10%

Cities Where Found

# City Country Daily sighting probability
1 Tegucigalpa 🇭🇳 Honduras
~20%
2 Cali 🇨🇴 Colombia
~20%
3 San Pedro Sula 🇭🇳 Honduras
~10%
4 Medellín 🇨🇴 Colombia
~10%
5 San José 🇨🇷 Costa Rica
~10%
6 San Salvador 🇸🇻 El Salvador
~10%
7 Guatemala City 🇬🇹 Guatemala
~10%
8 São Paulo 🇧🇷 Brazil
~10%
9 Rio de Janeiro 🇧🇷 Brazil
<5%

Before you go

What are the chances of seeing a Long-Tailed Metalmark in San José?

With luck

About 10% of wildlife watchers report a Long-Tailed Metalmark sighting in San José on a given day, based on 45 verified sightings from GBIF citizen-science data. It is the 32nd most-seen of the 239 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.

When is the best time to see a Long-Tailed Metalmark in San José?

July to September

In those months about 20% of wildlife watchers report a Long-Tailed Metalmark in San José on a given day, against under 5% in January, the lowest month. Those are among San José's wettest months, with about 210 mm of rain a month against 20 mm in February.

What time of day is best to see a Long-Tailed Metalmark?

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.

Is San José the best place to see a Long-Tailed Metalmark?

5th of 9

Of the 9 cities where we can rate Long-Tailed Metalmark sightings, San José ranks 5th at about 10%. The best odds are in Tegucigalpa (Honduras, about 20%), Cali (Colombia, about 20%) and San Pedro Sula (Honduras, about 10%).

Where does the Long-Tailed Metalmark sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Long-Tailed Metalmark is recorded against all the insects logged in San José (45 verified sightings), 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.

← Back to San José