Speyeria aglaja
In 3 days ~70% in a week ~90%
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 30% of wildlife watchers report a Dark Green Fritillary sighting in Vanoise National Park on a given day, based on 57 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 13th most-seen of the 308 insects we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
August
In that month about 50% of wildlife watchers report a Dark Green Fritillary in Vanoise National Park on a given day, against under 5% in September–October and December–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.
3rd of 16
Of the 16 parks where we can rate Dark Green Fritillary sightings, Vanoise National Park ranks 3rd at about 30%. The best odds are in Aigüestortes National Park (Spain, about 50%) and Mercantour National Park (France, about 40%). All parks ranked.
Same family: Nymphalidae
The closest relatives of the Dark Green Fritillary that you can see in Vanoise National Park (family Nymphalidae, Brush-footed Butterflies) are Small Tortoiseshell (about 40%), Common Brassy Ringlet (about 40%) and False Heath Fritillary (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 Vanoise National Park (57 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.
