Brown Diving Beetle vs Corn Crake

Agabus brunneus compared with Crex crex

Key Differences

• Brown Diving Beetle is Extinct while Corn Crake is Critically Endangered.

Taxonomic Classification

Rank	Brown Diving Beetle	Corn Crake
Kingdom same	Animalia (प्राणी)	Animalia (प्राणी)
Phylum	Arthropoda (सन्धिपाद)	Chordata (रज्जुकी)
Class	Insecta (कीट)	Aves (पक्षी)
Order	Coleoptera (वर्मपंखी गण)	Gruiformes (ग्रुइफोर्मीस)
Family	Dytiscidae	Rallidae
Genus	Agabus	Crex
Species	Agabus brunneus	Crex crex

Evolutionary Relationship

Brown Diving Beetle and Corn Crake share a common ancestor at the Kingdom level: Animalia. (प्राणी)

Conservation Status

Brown Diving Beetle

EX — Extinct

Corn Crake

CR — Critically Endangered

Physical Characteristics

Attribute	Brown Diving Beetle	Corn Crake
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 Crake

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 8 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (6 countries). 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.

Corn Crake

Corn Crake (Crex crex) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇸🇪 Sweden