Bog Fritillary
Boloria eunomia
Boloria eunomia, the bog fritillary or ocellate bog fritillary is a butterfly of the family Nymphalidae.
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Boloria_eunomia
Taxonomy & Classification
Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Lepidoptera
Family
Nymphalidae
Genus
Boloria
Bog Fritillary belongs to the family Nymphalidae, order Lepidoptera, within the Insecta class.
Species Profile
Boloria eunomia, the bog fritillary or ocellate bog fritillary is a butterfly of the family Nymphalidae.
The Bog Fritillary is critically endangered primarily due to habitat loss and degradation of its specialized bog and wetland ecosystems. Climate change poses an additional severe threat by altering the hydrology and plant communities of these sensitive habitats, while habitat fragmentation isolates remaining populations and reduces genetic diversity.
Key Facts
Habitat & Distribution
It is found throughout the north-temperate region of the Northern Hemisphere The species is not mentioned in the Red Data Book of Serbian butterflies because it was not known to be in the country at the time of it being published. The species is commonly found in open acid bogs in areas that are moist. It can also be found in moist tundra and willow seeps.
Threats
IUCN Red List: Critically Endangered
The Bog Fritillary is critically endangered primarily due to habitat loss and degradation of its specialized bog and wetland ecosystems. Climate change poses an additional severe threat by altering the hydrology and plant communities of these sensitive habitats, while habitat fragmentation isolates remaining populations and reduces genetic diversity.
Climate change affecting wetland hydrology
Habitat fragmentation isolating populations
Habitat loss and degradation of bog ecosystems
Agricultural intensification and land conversion
Changes in host plant availability
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). Bog Fritillary (Boloria eunomia). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/bog-fritillary