False Bruce Spanworm vs Narrow-headed Vole

Macaria loricaria compared with Microtus gregalis

Key Differences

• False Bruce Spanworm is Near Threatened while Narrow-headed Vole is Least Concern.

Taxonomic Classification

Rank	False Bruce Spanworm	Narrow-headed Vole
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Rodentia (Rodents)
Family	Geometridae	Cricetidae
Genus	Macaria	Microtus
Species	Macaria loricaria	Microtus gregalis

Evolutionary Relationship

False Bruce Spanworm and Narrow-headed Vole share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

False Bruce Spanworm

NT — Near Threatened

Narrow-headed Vole

LC — Least Concern

Physical Characteristics

Attribute	False Bruce Spanworm	Narrow-headed Vole
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Narrow-headed Vole

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.