Arctic Blue vs Red-flanked Bluetail

Agriades aquilo compared with Tarsiger cyanurus

Key Differences

• Arctic Blue is Near Threatened while Red-flanked Bluetail is Endangered.

Taxonomic Classification

Rank	Arctic Blue	Red-flanked Bluetail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Lepidoptera (Butterflies & Moths)	Passeriformes (Songbirds)
Family	Lycaenidae	Muscicapidae
Genus	Agriades	Tarsiger
Species	Agriades aquilo	Tarsiger cyanurus

Evolutionary Relationship

Arctic Blue and Red-flanked Bluetail share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Arctic Blue

NT — Near Threatened

Red-flanked Bluetail

EN — Endangered

Physical Characteristics

Attribute	Arctic Blue	Red-flanked Bluetail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic Blue

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Finland, Norway, Russia, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Red-flanked Bluetail

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (8 countries). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Arctic Blue

The Arctic Blue (Agriades aquilo) is a species in the genus Agriades. It is currently classified as Near Threatened on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Red-flanked Bluetail

Red-flanked Bluetail (Tarsiger cyanurus) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.

Shared Countries

Both species can be found in 3 countries:

🇳🇴 Norway 🇷🇺 Russia 🇸🇪 Sweden