Big Brown Bat vs Brown Widow

Eptesicus fuscus compared with Latrodectus geometricus

Key Differences

• Big Brown Bat is Least Concern while Brown Widow is Not Evaluated.

Taxonomic Classification

Rank	Big Brown Bat	Brown Widow
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Arachnida (Arachnids)
Order	Chiroptera (Bats)	Araneae (Araneae)
Family	Vespertilionidae	Theridiidae
Genus	Eptesicus	Latrodectus
Species	Eptesicus fuscus	Latrodectus geometricus

Evolutionary Relationship

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

Conservation Status

Big Brown Bat

LC — Least Concern

Brown Widow

NE — Not Evaluated

Physical Characteristics

Attribute	Big Brown Bat	Brown Widow
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big Brown Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Colombia, Ecuador, United States, and Venezuela.

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).

Big Brown Bat

The Big Brown Bat (Eptesicus fuscus) is a species in the genus Eptesicus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

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 4 countries:

🇧🇪 Belgium 🇨🇴 Colombia 🇪🇨 Ecuador 🇺🇸 United States