Lesser Noctule vs Orange-vented Mason Bee

Nyctalus leisleri compared with Osmia leaiana

Key Differences

• Lesser Noctule is Endangered while Orange-vented Mason Bee is Least Concern.

Taxonomic Classification

Rank	Lesser Noctule	Orange-vented Mason Bee
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Chiroptera (Bats)	Hymenoptera (Ants, Bees & Wasps)
Family	Vespertilionidae	Megachilidae
Genus	Nyctalus	Osmia
Species	Nyctalus leisleri	Osmia leaiana

Evolutionary Relationship

Lesser Noctule and Orange-vented Mason Bee share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Lesser Noctule

EN — Endangered

Orange-vented Mason Bee

LC — Least Concern

Physical Characteristics

Attribute	Lesser Noctule	Orange-vented Mason Bee
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.

Orange-vented Mason Bee

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇱🇺 Luxembourg 🇸🇪 Sweden