Speyeria aglaja
In 3 days ~50% in a week ~80%
The dark green fritillary (Speyeria aglaja) is a species of butterfly in the family Nymphalidae. The insect has a wide range in the Palearctic realm - Europe, Morocco, Iran, Siberia, Central Asia, China, Korea, and Japan.
The dark green fritillary was first formally described as Papilio aglaja in the 10th edition of Systema Naturae published in 1758 with its type locality given as Sweden. This species is now classified in the genus Speyeria which is classified within the subfamily Heliconiinae of the brush-footed butterfly family, Nymphalidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Aigüestortes National Park | 🇪🇸 Spain | |
| 2 | Mercantour National Park | 🇫🇷 France | |
| 3 | Vanoise National Park | 🇫🇷 France | |
| 4 | Ordesa y Monte Perdido National Park | 🇪🇸 Spain | |
| 5 | Hohe Tauern National Park | 🇦🇹 Austria | |
| 6 | Ecrins National Park | 🇫🇷 France | |
| 7 | Pyrénées National Park | 🇫🇷 France | |
| 8 | Cairngorms National Park | 🇬🇧 United Kingdom | |
| 9 | Triglav National Park | 🇸🇮 Slovenia | |
| 10 | Picos de Europa National Park | 🇪🇸 Spain | |
| 11 | Cévennes National Park | 🇫🇷 France | |
| 12 | Tatra National Park | 🇸🇰 Slovakia | |
| 13 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 14 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 15 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 16 | Sierra de Guadarrama National Park | 🇪🇸 Spain |
Possible
About 20% of wildlife watchers report a Dark Green Fritillary sighting in Triglav National Park on a given day, based on 24 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 78th most-seen of the 260 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.
July
In that month about 30% of wildlife watchers report a Dark Green Fritillary in Triglav National Park on a given day, against under 5% in September to May, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Dark Green Fritillary sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
9th of 16
Of the 16 parks where we can rate Dark Green Fritillary sightings, Triglav National Park ranks 9th at about 20%. The best odds are in Aigüestortes National Park (Spain, about 50%), Mercantour National Park (France, about 40%) and Vanoise National Park (France, about 30%). All parks ranked.
Same family: Nymphalidae
The closest relatives of the Dark Green 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 Dark Green Fritillary is recorded against all the insects logged in Triglav National Park (24 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.
