Brown Diving Beetle vs Caucasian Wingnut

Agabus brunneus compared with Pterocarya fraxinifolia

Key Differences

• Brown Diving Beetle is Extinct while Caucasian Wingnut is Not Evaluated.

Taxonomic Classification

Rank	Brown Diving Beetle	Caucasian Wingnut
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Insecta (Insects)	Magnoliopsida (Dicots)
Order	Coleoptera (Beetles)	Fagales (Beeches & Oaks)
Family	Dytiscidae	Juglandaceae
Genus	Agabus	Pterocarya
Species	Agabus brunneus	Pterocarya fraxinifolia

Conservation Status

Brown Diving Beetle

EX — Extinct

Caucasian Wingnut

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Diving Beetle	Caucasian Wingnut
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.

Caucasian Wingnut

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Found across Europe (9 countries).

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.

Caucasian Wingnut

The Caucasian Wingnut (Pterocarya fraxinifolia) is a species in the genus Pterocarya. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇸🇪 Sweden