Downy Emerald vs Japanese Weasel

Cordulia aenea compared with Mustela itatsi

Key Differences

• Downy Emerald is Least Concern while Japanese Weasel is Near Threatened.

Taxonomic Classification

Rank	Downy Emerald	Japanese Weasel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Odonata (Odonata)	Carnivora (Carnivorans)
Family	Corduliidae	Mustelidae (Weasels & Otters)
Genus	Cordulia	Mustela
Species	Cordulia aenea	Mustela itatsi

Evolutionary Relationship

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

Conservation Status

Downy Emerald

LC — Least Concern

Japanese Weasel

NT — Near Threatened

Physical Characteristics

Attribute	Downy Emerald	Japanese Weasel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Downy Emerald

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden.

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.

Downy Emerald

Downy Emerald (Cordulia aenea) 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.