Arizona Cotton Rat vs False Bruce Spanworm

Sigmodon arizonae compared with Macaria loricaria

Key Differences

• Arizona Cotton Rat is Least Concern while False Bruce Spanworm is Near Threatened.

Taxonomic Classification

Rank	Arizona Cotton Rat	False Bruce Spanworm
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Rodentia (Rodents)	Lepidoptera (Butterflies & Moths)
Family	Cricetidae	Geometridae
Genus	Sigmodon	Macaria
Species	Sigmodon arizonae	Macaria loricaria

Evolutionary Relationship

Arizona Cotton Rat and False Bruce Spanworm share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Arizona Cotton Rat

LC — Least Concern

False Bruce Spanworm

NT — Near Threatened

Physical Characteristics

Attribute	Arizona Cotton Rat	False Bruce Spanworm
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arizona Cotton Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

False Bruce Spanworm

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

Arizona Cotton Rat

The Arizona Cotton Rat, Sigmodon arizonae, is a species. It is currently assessed as least concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.