Japanese Weasel vs Square-spot Deerfly

Mustela itatsi compared with Chrysops viduatus

Key Differences

• Japanese Weasel is Near Threatened while Square-spot Deerfly is Least Concern.

Taxonomic Classification

Rank	Japanese Weasel	Square-spot Deerfly
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Carnivora (Carnivorans)	Diptera (Diptera)
Family	Mustelidae (Weasels & Otters)	Tabanidae
Genus	Mustela	Chrysops
Species	Mustela itatsi	Chrysops viduatus

Evolutionary Relationship

Japanese Weasel and Square-spot Deerfly share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Japanese Weasel

NT — Near Threatened

Square-spot Deerfly

LC — Least Concern

Physical Characteristics

Attribute	Japanese Weasel	Square-spot Deerfly
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Square-spot Deerfly

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.