Brown Widow vs Lesser Noctule

Latrodectus geometricus compared with Nyctalus leisleri

Key Differences

• Brown Widow is Not Evaluated while Lesser Noctule is Endangered.

Taxonomic Classification

Rank	Brown Widow	Lesser Noctule
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Arachnida (Arachnids)	Mammalia (Mammals)
Order	Araneae (Araneae)	Chiroptera (Bats)
Family	Theridiidae	Vespertilionidae
Genus	Latrodectus	Nyctalus
Species	Latrodectus geometricus	Nyctalus leisleri

Evolutionary Relationship

Brown Widow and Lesser Noctule share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brown Widow

NE — Not Evaluated

Lesser Noctule

EN — Endangered

Physical Characteristics

Attribute	Brown Widow	Lesser Noctule
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Widow

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Widely distributed across Africa (South Africa), Asia (Japan), Europe (7 countries), North America (United States), and South America (Colombia, Ecuador, Peru).

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.

Brown Widow

The Brown Widow (Latrodectus geometricus) is a species in the genus Latrodectus. Typically found in terrestrial habitats from forests to deserts. Its geographic range includes widely distributed across africa (south africa), asia (japan), europe (7 countries), north america (united states), and south america (colombia, ecuador, peru).

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇸🇪 Sweden