Arctic Blue vs Common Periwinkle

Agriades aquilo compared with Littorina littorea

Key Differences

• Arctic Blue is Near Threatened while Common Periwinkle is Least Concern.

Taxonomic Classification

Rank	Arctic Blue	Common Periwinkle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Mollusca (Mollusks)
Class	Insecta (Insects)	Gastropoda (Gastropoda)
Order	Lepidoptera (Butterflies & Moths)	Littorinimorpha (Littorinimorpha)
Family	Lycaenidae	Littorinidae
Genus	Agriades	Littorina
Species	Agriades aquilo	Littorina littorea

Evolutionary Relationship

Arctic Blue and Common Periwinkle share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Arctic Blue

NT — Near Threatened

Common Periwinkle

LC — Least Concern

Physical Characteristics

Attribute	Arctic Blue	Common Periwinkle
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.

Common Periwinkle

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Found across Europe (4 countries) and North America (Canada, United States).

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.

Common Periwinkle

Common Periwinkle (Littorina littorea) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden