Black-headed Pigmy vs Gray-footed Spiny-rat

Stigmella atricapitella compared with Proechimys poliopus

Key Differences

• Black-headed Pigmy is Least Concern while Gray-footed Spiny-rat is Vulnerable.

Taxonomic Classification

Rank	Black-headed Pigmy	Gray-footed Spiny-rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Rodentia (Rodents)
Family	Nepticulidae	Echimyidae
Genus	Stigmella	Proechimys
Species	Stigmella atricapitella	Proechimys poliopus

Evolutionary Relationship

Black-headed Pigmy and Gray-footed Spiny-rat share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Black-headed Pigmy

LC — Least Concern

Gray-footed Spiny-rat

VU — Vulnerable

Physical Characteristics

Attribute	Black-headed Pigmy	Gray-footed Spiny-rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-headed Pigmy

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Portugal, and Sweden.

Gray-footed Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Black-headed Pigmy

The Black-headed Pigmy (Stigmella atricapitella) is a species in the genus Stigmella. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.