Brown Diving Beetle vs fern-grass

Agabus brunneus compared with Catapodium rigidum

Key Differences

• Brown Diving Beetle is Extinct while fern-grass is Endangered.

Taxonomic Classification

Rank	Brown Diving Beetle	fern-grass
Kingdom	Animalia (สัตว์)	Plantae (พืช)
Phylum	Arthropoda (สัตว์ขาปล้อง)	Magnoliophyta (Flowering Plants)
Class	Insecta (แมลง)	Liliopsida (Monocots)
Order	Coleoptera (อันดับด้วง)	Poales (อันดับหญ้า)
Family	Dytiscidae	Poaceae (Grass Family)
Genus	Agabus	Catapodium
Species	Agabus brunneus	Catapodium rigidum

Conservation Status

Brown Diving Beetle

EX — Extinct

fern-grass

EN — Endangered

Physical Characteristics

Attribute	Brown Diving Beetle	fern-grass
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.

fern-grass

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, montane grasslands and shrublands, and Mediterranean forests and woodlands, among 9 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Asia (Japan), Europe (10 countries), North America (Mexico), Oceania and the Pacific (Australia), and South America (Argentina, Brazil, Chile). Currently classified as 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