Arctic Smudge vs Hotson’s Brush-tailed Mouse

Plutella haasi compared with Calomyscus hotsoni

Key Differences

• Arctic Smudge is Near Threatened while Hotson’s Brush-tailed Mouse is Least Concern.

Taxonomic Classification

Rank	Arctic Smudge	Hotson’s Brush-tailed Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Rodentia (Rodents)
Family	Plutellidae	Calomyscidae
Genus	Plutella	Calomyscus
Species	Plutella haasi	Calomyscus hotsoni

Evolutionary Relationship

Arctic Smudge and Hotson’s Brush-tailed Mouse share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Arctic Smudge

NT — Near Threatened

Hotson’s Brush-tailed Mouse

LC — Least Concern

Physical Characteristics

Attribute	Arctic Smudge	Hotson’s Brush-tailed Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic Smudge

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Norway and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Hotson’s Brush-tailed Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Arctic Smudge

The Arctic Smudge (Plutella haasi) is a species in the genus Plutella. It is currently classified as Near Threatened on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.