Black Gem vs Japanese Weasel

Microchrysa cyaneiventris compared with Mustela itatsi

Key Differences

• Black Gem is Least Concern while Japanese Weasel is Near Threatened.

Taxonomic Classification

Rank	Black Gem	Japanese Weasel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Diptera (Diptera)	Carnivora (Carnivorans)
Family	Stratiomyidae	Mustelidae (Weasels & Otters)
Genus	Microchrysa	Mustela
Species	Microchrysa cyaneiventris	Mustela itatsi

Evolutionary Relationship

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

Conservation Status

Black Gem

LC — Least Concern

Japanese Weasel

NT — Near Threatened

Physical Characteristics

Attribute	Black Gem	Japanese Weasel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Gem

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, 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.

Black Gem

The Black Gem (Microchrysa cyaneiventris) is a species in the genus Microchrysa. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.