large tortoiseshell vs Merriam’s Pocket Mouse

Nymphalis polychloros compared with Perognathus merriami

Key Differences

• large tortoiseshell is Critically Endangered while Merriam’s Pocket Mouse is Least Concern.

Taxonomic Classification

Rank	large tortoiseshell	Merriam’s Pocket Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Rodentia (Rodents)
Family	Nymphalidae (Brush-footed Butterflies)	Heteromyidae
Genus	Nymphalis	Perognathus
Species	Nymphalis polychloros	Perognathus merriami

Evolutionary Relationship

large tortoiseshell and Merriam’s Pocket Mouse share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

large tortoiseshell

CR — Critically Endangered

Merriam’s Pocket Mouse

LC — Least Concern

Physical Characteristics

Attribute	large tortoiseshell	Merriam’s Pocket Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

large tortoiseshell

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 9 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (39 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Merriam’s Pocket Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

large tortoiseshell

large tortoiseshell (Nymphalis polychloros) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.