Marsyas Hairstreak

Marsyas Hairstreak

Pseudolycaena marsyas

Daily sighting probability ~10% · With luck
at Porto Alegre

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

35 Verified sightings at Porto Alegre
30 In all 4 parks From 2019 to 2026
April Best month
☀️ Diurnal When it's spotted

About the Marsyas Hairstreak

Pseudolycaena marsyas, the Cambridge blue, giant hairstreak or Marsyas hairstreak, is a species of butterfly in the family Lycaenidae. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Main Ridge Forest Reserve 🇹🇹 Trinidad and Tobago
~10%
2 Serra dos Órgãos National Park 🇧🇷 Brazil
~10%
3 Iguazú National Park 🇦🇷 Argentina
~10%
4 Iguaçu National Park 🇧🇷 Brazil
~10%

Cities Where Found

# City Country Daily sighting probability
1 Porto Alegre 🇧🇷 Brazil
~10%
2 São Luís 🇧🇷 Brazil
~10%
3 Vitória 🇧🇷 Brazil
~10%
4 São Paulo 🇧🇷 Brazil
~10%
5 Lima 🇵🇪 Peru
~10%
6 Brasilia 🇧🇷 Brazil
~10%
7 Rio de Janeiro 🇧🇷 Brazil
<5%

Before you go

What are the chances of seeing a Marsyas Hairstreak in Porto Alegre?

With luck

About 10% of wildlife watchers report a Marsyas Hairstreak sighting in Porto Alegre on a given day, based on 35 verified sightings from GBIF citizen-science data. It is the 38th most-seen of the 226 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 Marsyas Hairstreak in Porto Alegre?

April

In that month about 30% of wildlife watchers report a Marsyas Hairstreak in Porto Alegre on a given day, against under 5% in June to October, the lowest months.

What time of day is best to see a Marsyas Hairstreak?

Between 11 am and 2 pm

Across all the parks we cover, that three-hour window holds the most Marsyas Hairstreak sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.

Is Porto Alegre the best place to see a Marsyas Hairstreak?

Yes

Of the 7 cities where we can rate Marsyas Hairstreak sightings, Porto Alegre has the highest daily chance: about 10%. Next come São Luís (Brazil, about 10%) and Vitória (Brazil, about 10%).

Which relatives of the Marsyas Hairstreak live in Porto Alegre?

Same family: Lycaenidae

The closest relatives of the Marsyas Hairstreak that you can see in Porto Alegre (family Lycaenidae, Gossamer-winged Butterflies) are Cassius Blue (about 20%), Separated Stripestreak (about 20%) and Hanno Blue (about 20%), with each one's daily chance of a sighting.

Where does the Marsyas Hairstreak sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Marsyas Hairstreak is recorded against all the insects logged in Porto Alegre (35 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.

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