Arctic Smudge vs Napo Spiny-rat

Plutella haasi compared with Proechimys quadruplicatus

Key Differences

• Arctic Smudge is Near Threatened while Napo Spiny-rat is Least Concern.

Taxonomic Classification

Rank	Arctic Smudge	Napo Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Rodentia (Rodents)
Family	Plutellidae	Echimyidae
Genus	Plutella	Proechimys
Species	Plutella haasi	Proechimys quadruplicatus

Evolutionary Relationship

Arctic Smudge and Napo Spiny-rat share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Arctic Smudge

NT — Near Threatened

Napo Spiny-rat

LC — Least Concern

Physical Characteristics

Attribute	Arctic Smudge	Napo Spiny-rat
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.

Napo Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

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.