Lesser Noctule vs Square-spot Deerfly

Nyctalus leisleri compared with Chrysops viduatus

Key Differences

• Lesser Noctule is Endangered while Square-spot Deerfly is Least Concern.

Taxonomic Classification

Rank	Lesser Noctule	Square-spot Deerfly
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Chiroptera (Bats)	Diptera (Diptera)
Family	Vespertilionidae	Tabanidae
Genus	Nyctalus	Chrysops
Species	Nyctalus leisleri	Chrysops viduatus

Evolutionary Relationship

Lesser Noctule and Square-spot Deerfly share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Lesser Noctule

EN — Endangered

Square-spot Deerfly

LC — Least Concern

Physical Characteristics

Attribute	Lesser Noctule	Square-spot Deerfly
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.

Square-spot Deerfly

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