Aricia morronensis
In 3 days ~10% in a week ~20%
Aricia morronensis, the Spanish argus, is a butterfly of the family Lycaenidae. It is found in Spain and Hautes-Pyrénées (France). The wingspan is 22–26 mm. Adults are on wing from June to September in usually one, but sometimes two generations per year.
The larvae feed on the leaves of Erodium species. They are attended by ants. The species overwinters in the larval stage. L. idas Rbr. (79 k). Above black-brown with dark median spot on the forewing, the fringes pale, only slightly darkened at the tips of the veins. Underside coffee-brown, with feeble reddish tinge, the ocelli being similarly arranged as in astrarche; the hindwing with pale longitudinal streak from the centre of the wing to the middle of the outer margin, the streak being generally much more prominent than in our figure. — In the Sierra Nevada, at 1000 ft., in July.
Aricia morronensis morronensis present in Andalusia (South Spain) and South Albacete and Murcia. Aricia morronensis boudrani (Leraut, 1999) present at the Col du Tourmalet... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 2 | Pyrénées National Park | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report a Spanish Argus sighting in Pyrénées National Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 1026th most-seen of the 1277 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.
July
In that month about 10% of wildlife watchers report a Spanish Argus in Pyrénées National Park on a given day, against under 5% in August to June, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Spanish Argus sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate Spanish Argus sightings, Pyrénées National Park ranks 2nd at under 5%. The best odds are in Sierra Nevada National Park (Spain, about 10%).
GBIF citizen-science records
It is estimated from how often the Spanish Argus is recorded against all the insects logged in Pyrénées National Park (10 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.
