Issoria lathonia
In 3 days ~20% in a week ~50%
The Queen of Spain fritillary (Issoria lathonia) is a butterfly of the family Nymphalidae. Issoria lathonia isaeoides Reuss, 1925 (Sichuan, China) This migratory species is widespread in most of Europe, in North Africa, Canary Islands, and in the eastern Palearctic realm (Central Asia, Himalayas, Baluchistan, and Western China). These butterflies live in open areas, in dry lawns, agricultural wastelands and in extensive crops at altitudes between sea level and 2700 m.
Issoria lathonia is a medium-sized butterfly with a wingspan of 38–46 millimetres (1.5–1.8 in). The wings show a deep orange-violet background, with rounded black spots arranged in regular rows and suffused with greenish gray in the females. The underside of the hindwings is decorated with large pearly nacreous spots and it is crossed by a postdiscal row of black eyespots with pearly pupils. Some pearly spots also appear at the apex of the forewings.
The caterpillar can reach a length of 35 millimetres... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kiskunság National Park | 🇭🇺 Hungary | |
| 2 | Mercantour National Park | 🇫🇷 France | |
| 3 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 4 | Aigüestortes National Park | 🇪🇸 Spain | |
| 5 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 6 | Picos de Europa National Park | 🇪🇸 Spain | |
| 7 | Vanoise National Park | 🇫🇷 France | |
| 8 | Cévennes National Park | 🇫🇷 France | |
| 9 | Pyrénées National Park | 🇫🇷 France | |
| 10 | Hohe Tauern National Park | 🇦🇹 Austria | |
| 11 | Biebrza National Park | 🇵🇱 Poland | |
| 12 | Ecrins National Park | 🇫🇷 France | |
| 13 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 14 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 15 | Wadden Sea National Park | 🇩🇪 Germany | |
| 16 | Triglav National Park | 🇸🇮 Slovenia |
With luck
About 10% of wildlife watchers report a Queen Of Spain Fritillary sighting in Triglav National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 230th most-seen of the 260 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.
February
In that month about 40% of wildlife watchers report a Queen Of Spain Fritillary in Triglav National Park on a given day, against under 5% in March–May, July and October–January, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Queen Of Spain Fritillary sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
16th of 16
Of the 16 parks where we can rate Queen Of Spain Fritillary sightings, Triglav National Park ranks 16th at about 10%. The best odds are in Kiskunság National Park (Hungary, about 40%), Mercantour National Park (France, about 40%) and Sierra de Guadarrama National Park (Spain, about 40%). All parks ranked.
Same family: Nymphalidae
The closest relatives of the Queen Of Spain Fritillary that you can see in Triglav National Park (family Nymphalidae, Brush-footed Butterflies) are Silver-Washed Fritillary (about 60%), Marbled White (about 40%) and Meadow Brown (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Queen Of Spain Fritillary is recorded against all the insects logged in Triglav National Park (6 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.
