False widow vs Miller’s Mastiff Bat

Steatoda bipunctata compared with Molossus pretiosus

Taxonomic Classification

Rank	False widow	Miller’s Mastiff Bat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Arachnida (Arachnids)	Mammalia (Mammals)
Order	Araneae (Araneae)	Chiroptera (Bats)
Family	Theridiidae	Molossidae
Genus	Steatoda	Molossus
Species	Steatoda bipunctata	Molossus pretiosus

Evolutionary Relationship

False widow and Miller’s Mastiff Bat share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

False widow

LC — Least Concern

Miller’s Mastiff Bat

LC — Least Concern

Physical Characteristics

Attribute	False widow	Miller’s Mastiff Bat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

False widow

Habitat

Typically found in terrestrial habitats from forests to deserts.

Range

Found across Europe (4 countries) and North America (Canada, United States).

Miller’s Mastiff Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.