Brown Diving Beetle vs Least Crayfish

Agabus brunneus compared with Cambarellus diminutus

Key Differences

• Brown Diving Beetle is Extinct while Least Crayfish is Data Deficient.

Taxonomic Classification

Rank	Brown Diving Beetle	Least Crayfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class	Insecta (Insects)	Malacostraca (Crustaceans)
Order	Coleoptera (Beetles)	Decapoda (Decapoda)
Family	Dytiscidae	Cambaridae
Genus	Agabus	Cambarellus
Species	Agabus brunneus	Cambarellus diminutus

Evolutionary Relationship

Brown Diving Beetle and Least Crayfish share a common ancestor at the Phylum level: Arthropoda. (Arthropods)

Conservation Status

Brown Diving Beetle

EX — Extinct

Least Crayfish

DD — Data Deficient

Physical Characteristics

Attribute	Brown Diving Beetle	Least Crayfish
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.

Least Crayfish

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Found in Norway.

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.