Thecla marius
In 3 days ~10% in a week ~20%
Rekoa marius, the Marius hairstreak, is a butterfly in the family Lycaenidae. It is found from Paraguay north to Sonora in Mexico. Strays may be found as far north as southern Texas. The species used to be considered rare in the southern Texas. It is the species of Rekoa found in Arizona. The habitat consists of disturbed tropical areas.
The wingspan is 22–32 mm. The upperside of the males is dark iridescent blue. Females are gray. The hindwing has an orange eyespot near the tail. Adults are probably on wing year round in Mexico. In southern Texas, there is one flight with adults on wing from September to December. They feed on flower nectar.
The larvae feed on various plants, including legumes and malpighias. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Ría Lagartos Biosphere Reserve | 🇲🇽 Mexico |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Manaus | 🇧🇷 Brazil | |
| 2 | Maceió | 🇧🇷 Brazil | |
| 3 | Panama City | 🇵🇦 Panama | |
| 4 | Monterrey | 🇲🇽 México | |
| 5 | Buenos Aires | 🇦🇷 Argentina | |
| 6 | São Paulo | 🇧🇷 Brazil |
Rare
Under 5% of wildlife watchers report a Thecla marius sighting in Buenos Aires on a given day, based on 28 verified sightings from GBIF citizen-science data. It is the 263rd most-seen of the 558 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
May and June
In those months about 10% of wildlife watchers report a Thecla marius in Buenos Aires on a given day, against under 5% in July to April, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Thecla marius sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
5th of 6
Of the 6 cities where we can rate Thecla marius sightings, Buenos Aires ranks 5th at under 5%. The best odds are in Manaus (Brazil, about 10%), Maceió (Brazil, about 10%) and Panama City (Panama, about 10%).
Same family: Lycaenidae
The closest relatives of the Thecla marius that you can see in Buenos Aires (family Lycaenidae, Gossamer-winged Butterflies) are Cassius Blue (about 20%), Strymon eurytulus (about 10%) and Emesis russula (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Thecla marius is recorded against all the insects logged in Buenos Aires (28 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.
