| Family | Nymphalidae |
|---|---|
| Subfamily | Heliconiinae |
| Genus | Speyeria |
| Species | aglaja |
| Authority | (Linnaeus, 1758) |
| English Name | Dark Green Fritillary |
| European Red List 2010 | Least Concern (LC) |
|---|---|
| EU 27 Red List 2010 | Least Concern (LC) |
| European Red List 2025 | Least Concern (LC) |
| EU 27 Red List 2025 | Least Concern (LC) |
| Habitats Directive | |
| Bern Convention | |
| CITES |
The Dark Green Fritillary can be found on many different types of flower-rich grasslands. The grassland is often situated in or at the edge of woodland, and may be dry, calcareous or dune grassland, or damp grasslands along the edges of bogs. The eggs are laid on the often already withered leaf-stems of violets (Viola spp.). Directly after hatching, the small caterpillar prepares for hibernation, hiding itself in the litter layer until the spring. It then begins to feed on the fresh, new growth of the violet plants, continuing into the summer, when it pupates either in the moss layer, or under a tussock of grass. The caterpillars are quite mobile and visit several plants when feeding. The Dark Green Fritillary is single-brooded.
Albania / Andorra / Austria / Belarus / Belgium / Belgium: Flanders (Regionally Extinct) / Belgium: Wallonia / Bosnia and Herzegovina / Bulgaria / Croatia / Czechia / Denmark / Estonia / Finland / France / France: Mainland / Germany / Greece / Greece: Mainland / Hungary / Ireland / Italy / Italy: Mainland / Italy: Sicily / Latvia / Liechtenstein / Lithuania / Luxembourg / North Macedonia / Moldova / Montenegro / Netherlands / Norway / Poland / Portugal / Portugal: Mainland / Romania / European Russia / Serbia / Serbia: Serbia / Serbia: Kosovo / Slovakia / Slovenia / Spain / Spain: Mainland / Sweden / Switzerland / European Türkiye / Ukraine / United Kingdom / United Kingdom: Great Britain / United Kingdom: Northern Ireland / United Kingdom: Isle of Man / United Kingdom: Guernsey / United Kingdom: Jersey (Regionally Extinct) /