Dusky Dwarf vs Japanese Weasel

Elachista serricornis compared with Mustela itatsi

Key Differences

• Dusky Dwarf is Least Concern while Japanese Weasel is Near Threatened.

Taxonomic Classification

Rank	Dusky Dwarf	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	Elachistidae	Mustelidae (Weasels & Otters)
Genus	Elachista	Mustela
Species	Elachista serricornis	Mustela itatsi

Evolutionary Relationship

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

Conservation Status

Dusky Dwarf

LC — Least Concern

Japanese Weasel

NT — Near Threatened

Physical Characteristics

Attribute	Dusky Dwarf	Japanese Weasel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dusky Dwarf

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.