Brown Diving Beetle vs Caterpillar-hunter

Agabus brunneus compared with Calosoma inquisitor

Key Differences

• Brown Diving Beetle is Extinct while Caterpillar-hunter is Near Threatened.

Taxonomic Classification

Rank	Brown Diving Beetle	Caterpillar-hunter
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class same	Insecta (Insects)	Insecta (Insects)
Order same	Coleoptera (Beetles)	Coleoptera (Beetles)
Family	Dytiscidae	Carabidae
Genus	Agabus	Calosoma
Species	Agabus brunneus	Calosoma inquisitor

Evolutionary Relationship

Brown Diving Beetle and Caterpillar-hunter share a common ancestor at the Order level: Coleoptera. (Beetles)

Conservation Status

Brown Diving Beetle

EX — Extinct

Caterpillar-hunter

NT — Near Threatened

Physical Characteristics

Attribute	Brown Diving Beetle	Caterpillar-hunter
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Diving Beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium and Sweden.

Caterpillar-hunter

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Brown Diving Beetle

The Brown Diving Beetle (Agabus brunneus) is a species in the genus Agabus. It is currently classified as Extinct on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Caterpillar-hunter

The Caterpillar-hunter (Calosoma inquisitor) is a species in the genus Calosoma. It is currently classified as Near Threatened on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇸🇪 Sweden