Aricia artaxerxes
In 3 days ~50% in a week ~80%
The northern brown argus (Aricia artaxerxes) is a butterfly in the family Lycaenidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Vanoise National Park | 🇫🇷 France | |
| 2 | Mercantour National Park | 🇫🇷 France | |
| 3 | Cairngorms National Park | 🇬🇧 United Kingdom | |
| 4 | Triglav National Park | 🇸🇮 Slovenia | |
| 5 | Ecrins National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Moscow | 🇷🇺 Russia |
Possible
About 20% of wildlife watchers report a Northern Brown Argus sighting in Mercantour National Park on a given day, based on 19 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 111th most-seen of the 412 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
June
In that month about 30% of wildlife watchers report a Northern Brown Argus in Mercantour National Park on a given day, against under 5% in October to May, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Northern Brown Argus sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 5 parks where we can rate Northern Brown Argus sightings, Mercantour National Park ranks 2nd at about 20%, level with the leaders once rounded. The best odds are in Vanoise National Park (France, about 20%).
Same family: Lycaenidae
The closest relatives of the Northern Brown Argus that you can see in Mercantour National Park (family Lycaenidae, Gossamer-winged Butterflies) are Scarce Copper (about 50%), Sooty Copper (about 40%) and Chalkhill Blue (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Northern Brown Argus is recorded against all the insects logged in Mercantour National Park (19 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.
