Brown Diving Beetle vs Wang's Crab

Agabus brunneus compared with Geothelphusa wangi

Key Differences

• Brown Diving Beetle is Extinct while Wang's Crab is Vulnerable.

Taxonomic Classification

Rank	Brown Diving Beetle	Wang's Crab
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class	Insecta (Insects)	Malacostraca (Crustaceans)
Order	Coleoptera (Beetles)	Decapoda (Decapoda)
Family	Dytiscidae	Potamidae
Genus	Agabus	Geothelphusa
Species	Agabus brunneus	Geothelphusa wangi

Evolutionary Relationship

Brown Diving Beetle and Wang's Crab share a common ancestor at the Phylum level: Arthropoda. (Arthropods)

Conservation Status

Brown Diving Beetle

EX — Extinct

Wang's Crab

VU — Vulnerable

Physical Characteristics

Attribute	Brown Diving Beetle	Wang's Crab
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.

Wang's Crab

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Found in Taiwan. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.