Common Blue vs Japanese Weasel

Polyommatus icarus compared with Mustela itatsi

Key Differences

• Common Blue is Least Concern while Japanese Weasel is Near Threatened.

Taxonomic Classification

Rank	Common Blue	Japanese Weasel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Carnivora (Carnivorans)
Family	Lycaenidae	Mustelidae (Weasels & Otters)
Genus	Polyommatus	Mustela
Species	Polyommatus icarus	Mustela itatsi

Evolutionary Relationship

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

Conservation Status

Common Blue

LC — Least Concern

Japanese Weasel

NT — Near Threatened

Physical Characteristics

Attribute	Common Blue	Japanese Weasel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Blue

Habitat

Inhabits Mediterranean forests and woodlands within the Palearctic biogeographic realm.

Range

Widely distributed across Asia (Cyprus), Europe (40 countries), and North America (United States).

Japanese Weasel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Japan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Common Blue

Common Blue (Polyommatus icarus) 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.