Lesser Noctule vs Mouse-ear Groundling

Nyctalus leisleri compared with Caryocolum fraternella

Key Differences

• Lesser Noctule is Endangered while Mouse-ear Groundling is Least Concern.

Taxonomic Classification

Rank	Lesser Noctule	Mouse-ear Groundling
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Chiroptera (Bats)	Lepidoptera (Butterflies & Moths)
Family	Vespertilionidae	Gelechiidae
Genus	Nyctalus	Caryocolum
Species	Nyctalus leisleri	Caryocolum fraternella

Evolutionary Relationship

Lesser Noctule and Mouse-ear Groundling share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Lesser Noctule

EN — Endangered

Mouse-ear Groundling

LC — Least Concern

Physical Characteristics

Attribute	Lesser Noctule	Mouse-ear Groundling
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Lesser Noctule

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Luxembourg, Sweden, and Ukraine. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Mouse-ear Groundling

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇸🇪 Sweden