Douroucouli a bras gris vs False Bruce Spanworm

Aotus griseimembra compared with Macaria loricaria

Key Differences

• Douroucouli a bras gris is Vulnerable while False Bruce Spanworm is Near Threatened.

Taxonomic Classification

Rank	Douroucouli a bras gris	False Bruce Spanworm
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Primates (Primates)	Lepidoptera (Butterflies & Moths)
Family	Aotidae	Geometridae
Genus	Aotus	Macaria
Species	Aotus griseimembra	Macaria loricaria

Evolutionary Relationship

Douroucouli a bras gris and False Bruce Spanworm share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Douroucouli a bras gris

VU — Vulnerable

False Bruce Spanworm

NT — Near Threatened

Physical Characteristics

Attribute	Douroucouli a bras gris	False Bruce Spanworm
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Douroucouli a bras gris

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its 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.