Chestnut Pigmy vs Gray Birch Mouse

Stigmella samiatella compared with Sicista pseudonapaea

Key Differences

• Chestnut Pigmy is Least Concern while Gray Birch Mouse is Data Deficient.

Taxonomic Classification

Rank	Chestnut Pigmy	Gray Birch Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Rodentia (Rodents)
Family	Nepticulidae	Dipodidae
Genus	Stigmella	Sicista
Species	Stigmella samiatella	Sicista pseudonapaea

Evolutionary Relationship

Chestnut Pigmy and Gray Birch Mouse share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Chestnut Pigmy

LC — Least Concern

Gray Birch Mouse

DD — Data Deficient

Physical Characteristics

Attribute	Chestnut Pigmy	Gray Birch Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chestnut Pigmy

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Gray Birch Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Chestnut Pigmy

The Chestnut Pigmy (Stigmella samiatella) 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.