Brown Diving Beetle vs corn buttercup

Agabus brunneus compared with Ranunculus arvensis

Key Differences

• Brown Diving Beetle is Extinct while corn buttercup is Critically Endangered.

Taxonomic Classification

Rank	Brown Diving Beetle	corn buttercup
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Insecta (Insects)	Magnoliopsida (Dicots)
Order	Coleoptera (Beetles)	Ranunculales (Ranunculales)
Family	Dytiscidae	Ranunculaceae
Genus	Agabus	Ranunculus
Species	Agabus brunneus	Ranunculus arvensis

Conservation Status

Brown Diving Beetle

EX — Extinct

corn buttercup

CR — Critically Endangered

Physical Characteristics

Attribute	Brown Diving Beetle	corn buttercup
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.

corn buttercup

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate coniferous forests, and temperate broadleaf and mixed forests, among 10 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (4 countries), Europe (21 countries), North America (United States), Oceania and the Pacific (Australia), and South America (Chile). Currently classified as Critically Endangered 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.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇸🇪 Sweden