California Deermouse vs Clover slender

Peromyscus californicus compared with Parectopa ononidis

Key Differences

• California Deermouse is Least Concern while Clover slender is Endangered.

Taxonomic Classification

Rank	California Deermouse	Clover slender
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Rodentia (Rodents)	Lepidoptera (Butterflies & Moths)
Family	Cricetidae	Gracillariidae
Genus	Peromyscus	Parectopa
Species	Peromyscus californicus	Parectopa ononidis

Evolutionary Relationship

California Deermouse and Clover slender share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

California Deermouse

LC — Least Concern

Clover slender

EN — Endangered

Physical Characteristics

Attribute	California Deermouse	Clover slender
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

California Deermouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Clover slender

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 8 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (7 countries). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

California Deermouse

The California Deermouse (Peromyscus californicus) is a species in the genus Peromyscus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Clover slender

The clover slender moth (Parectopa ononidis) is a small leaf-mining moth in the family Gracillariidae. Native to Europe, this species specializes on restharrow plants (Ononis species) in the legume family Fabaceae as its larval host. Like other Parectopa species, the larvae create distinctive blotch mines in the leaves of their host plants, feeding on the leaf tissue within the epidermis. The adult moth is typically small and narrow-winged, characteristic of the gracillariid family, with patterned forewings. This species inhabits dry grasslands, calcareous meadows, and scrubby areas where its restharrow host plants grow. It has been recorded across parts of central and western Europe, including the British Isles and continental regions. Parectopa ononidis is listed as Endangered on the IUCN Red List, reflecting its restricted habitat requirements and sensitivity to agricultural intensification, which has led to widespread loss of the dry calcareous grasslands it depends on. Conservation efforts for this species focus on maintaining traditional land management practices such as light grazing that support diverse wildflower communities including restharrow.