False Bruce Spanworm vs Gray-bellied Night Monkey

Macaria loricaria compared with Aotus lemurinus

Key Differences

• False Bruce Spanworm is Near Threatened while Gray-bellied Night Monkey is Vulnerable.

Taxonomic Classification

Rank	False Bruce Spanworm	Gray-bellied Night Monkey
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Primates (Primates)
Family	Geometridae	Aotidae
Genus	Macaria	Aotus
Species	Macaria loricaria	Aotus lemurinus

Evolutionary Relationship

False Bruce Spanworm and Gray-bellied Night Monkey share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

False Bruce Spanworm

NT — Near Threatened

Gray-bellied Night Monkey

VU — Vulnerable

Physical Characteristics

Attribute	False Bruce Spanworm	Gray-bellied Night Monkey
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.

Gray-bellied Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.