Frejya's Fritillary
Boloria freija
Boloria freija, the Freija fritillary, is a butterfly of the family Nymphalidae with a circumboreal distribution. It occurs in bogs and tundra.
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Boloria_freija
Taxonomy & Classification
Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Lepidoptera
Family
Nymphalidae
Genus
Boloria
Frejya's Fritillary belongs to the family Nymphalidae, order Lepidoptera, within the Insecta class.
Species Profile
Boloria freija, the Freija fritillary, is a butterfly of the family Nymphalidae with a circumboreal distribution. It occurs in bogs and tundra. Its range includes Northern Europe to the north of 60° N, occasionally more southern locations, the Urals, Siberia, the Russian Far East, mountains of northern Mongolia and Hokkaido, as well as North America, extending in the Rocky Mountains to 35° N.
Freija's Fritillary faces severe population declines primarily due to habitat loss and fragmentation of its specialized bog and wetland ecosystems. Climate change poses an additional threat by altering the hydrology and plant communities of these sensitive habitats, while the species' dependence on specific host plants makes it particularly vulnerable to environmental changes.
Key Facts
Threats
IUCN Red List: Critically Endangered
Freija's Fritillary faces severe population declines primarily due to habitat loss and fragmentation of its specialized bog and wetland ecosystems. Climate change poses an additional threat by altering the hydrology and plant communities of these sensitive habitats, while the species' dependence on specific host plants makes it particularly vulnerable to environmental changes.
Climate change impacts on bog hydrology
Habitat loss and fragmentation of bog ecosystems
Wetland drainage and development
Loss of host plant availability
Small population size and genetic isolation
National vs Global Threat Status
How this species is assessed at the national level compared to its IUCN global status (CR).
| Country | National Status | Global Status | Comparison |
|---|---|---|---|
| EU | LCLeast Concern | CRCritically Endangered | Lower local risk |
| EU | LCLeast Concern | CRCritically Endangered | Lower local risk |
National Red List data sourced from the National Red List Project (nationalredlist.org, ZSL) and country-specific Red List authorities.
Community Sightings
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Sources & Attribution
How to Cite
IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS
GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org
National Red Lists: ZSL (2025). National Red List. Zoological Society of London. Available at: https://www.nationalredlist.org
This page: SpeciesRadar (2025). Frejya's Fritillary (Boloria freija). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/frejyas-fritillary