Balkan Fritillary vs Brook Floater

Boloria graeca compared with Alasmidonta varicosa

Key Differences

• Balkan Fritillary is Near Threatened while Brook Floater is Vulnerable.

Taxonomic Classification

Rank	Balkan Fritillary	Brook Floater
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Mollusca (Mollusks)
Class	Insecta (Insects)	Bivalvia (Bivalvia)
Order	Lepidoptera (Butterflies & Moths)	Unionida (Unionida)
Family	Nymphalidae (Brush-footed Butterflies)	Unionidae
Genus	Boloria	Alasmidonta
Species	Boloria graeca	Alasmidonta varicosa

Evolutionary Relationship

Balkan Fritillary and Brook Floater share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Balkan Fritillary

NT — Near Threatened

Brook Floater

VU — Vulnerable

Physical Characteristics

Attribute	Balkan Fritillary	Brook Floater
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Balkan Fritillary

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (9 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Brook Floater

Habitat

Native to North America, inhabiting ecosystems characteristic of the region.

Range

Found in United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Balkan Fritillary

The Balkan Fritillary (Boloria graeca) is a species in the genus Boloria. It is currently classified as Near Threatened on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Brook Floater

The Brook Floater (Alasmidonta varicosa) is a species in the genus Alasmidonta. It is currently classified as Vulnerable on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.