Balkan Fritillary vs Bigeye thresher

Boloria graeca compared with Alopias pelagicus

Key Differences

• Balkan Fritillary is Near Threatened while Bigeye thresher is Endangered.

Taxonomic Classification

Rank	Balkan Fritillary	Bigeye thresher
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Chondrichthyes (Cartilaginous Fish)
Order	Lepidoptera (Butterflies & Moths)	Lamniformes (Mackerel Sharks)
Family	Nymphalidae (Brush-footed Butterflies)	Alopiidae
Genus	Boloria	Alopias
Species	Boloria graeca	Alopias pelagicus

Evolutionary Relationship

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

Conservation Status

Balkan Fritillary

NT — Near Threatened

Bigeye thresher

EN — Endangered

Physical Characteristics

Attribute	Balkan Fritillary	Bigeye thresher
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.

Bigeye thresher

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Distributed across Colombia and Taiwan. Currently classified as Endangered 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.

Bigeye thresher

The Bigeye thresher (Alopias pelagicus) is a species in the genus Alopias. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.