Arctic Sulfur vs Pacific Spiny-rat

Colias palaeno compared with Proechimys decumanus

Key Differences

• Arctic Sulfur is Least Concern while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Arctic Sulfur	Pacific 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	Pieridae	Echimyidae
Genus	Colias	Proechimys
Species	Colias palaeno	Proechimys decumanus

Evolutionary Relationship

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

Conservation Status

Arctic Sulfur

LC — Least Concern

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

Attribute	Arctic Sulfur	Pacific Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic Sulfur

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (24 countries).

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Arctic Sulfur

Arctic Sulfur (Colias palaeno) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.