Aricia artaxerxes
In 3 days ~10% in a week ~20%
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 |
Rare
Under 5% of wildlife watchers report a Northern Brown Argus sighting in Moscow on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 506th most-seen of the 1111 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Northern Brown Argus in Moscow on a given day, so our monthly data shows no clear season.
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.
Only Moscow, in our data
Moscow is the only city on Wallace's Line with enough records to rate Northern Brown Argus sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Northern Brown Argus is recorded against all the insects logged in Moscow (16 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.
