Southern Swallowtail

Southern Swallowtail

Papilio alexanor

Daily sighting probability ~10% · With luck
at Mercantour National Park

In 3 days ~20% in a week ~50%

5 Verified sightings at Mercantour National Park From 2019 to 2026
5 In 1 park
June Best month
☀️ Diurnal When it's spotted

About the Southern Swallowtail

Papilio alexanor, the Alexanor or southern swallowtail, is a butterfly species in the Papilionidae or swallowtails. The insect has a wingspan of 62–70 mm. It flies from April to July in a single generation, in mountainous regions (1700 m) of Europe, Asia Minor, the Balkans, and Asia (Anatolia, Iran, Afghanistan, Pakistan to west Tian-Shan). Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Mercantour National Park 🇫🇷 France
~10%

More parks will be added in future updates.

Before you go

What are the chances of seeing a Southern Swallowtail in Mercantour National Park?

With luck

About 10% of wildlife watchers report a Southern Swallowtail sighting in Mercantour National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 348th most-seen of the 412 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.

When is the best time to see a Southern Swallowtail in Mercantour National Park?

June to August

In those months about 10% of wildlife watchers report a Southern Swallowtail in Mercantour National Park on a given day, against under 5% in September to May, the lowest months.

What time of day is best to see a Southern Swallowtail?

Between 4 and 7 pm

Across all the parks we cover, that three-hour window holds the most Southern Swallowtail sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Where else can you see a Southern Swallowtail?

Only Mercantour National Park, in our data

Mercantour National Park is the only park on Wallace's Line with enough records to rate Southern Swallowtail sightings: about 10% of wildlife watchers there report one on a given day.

Where does the Southern Swallowtail sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Southern Swallowtail is recorded against all the insects logged in Mercantour National Park (5 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.

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