Gray-bellied Night Monkey vs Scale-crested Pygmy-Tyrant

Aotus lemurinus compared with Lophotriccus pileatus

Key Differences

• Gray-bellied Night Monkey is Vulnerable while Scale-crested Pygmy-Tyrant is Least Concern.

Taxonomic Classification

Rank	Gray-bellied Night Monkey	Scale-crested Pygmy-Tyrant
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Passeriformes (Songbirds)
Family	Aotidae	Tyrannidae
Genus	Aotus	Lophotriccus
Species	Aotus lemurinus	Lophotriccus pileatus

Evolutionary Relationship

Gray-bellied Night Monkey and Scale-crested Pygmy-Tyrant share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gray-bellied Night Monkey

VU — Vulnerable

Scale-crested Pygmy-Tyrant

LC — Least Concern

Physical Characteristics

Attribute	Gray-bellied Night Monkey	Scale-crested Pygmy-Tyrant
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Scale-crested Pygmy-Tyrant

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Scale-crested Pygmy-Tyrant

Scale-crested Pygmy-Tyrant (Lophotriccus pileatus) 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.

Shared Countries

Both species can be found in 3 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇻🇪 Venezuela