Brown Diving Beetle vs Red-knotgrass

Agabus brunneus compared with Polygonum patulum

Key Differences

• Brown Diving Beetle is Extinct while Red-knotgrass is Not Evaluated.

Taxonomic Classification

Rank	Brown Diving Beetle	Red-knotgrass
Kingdom	Animalia (حيوانات)	Plantae (نباتات)
Phylum	Arthropoda (مفصليات الأرجل)	Magnoliophyta (كاسيات البذور)
Class	Insecta (حشرات)	Magnoliopsida (ماغنولانية)
Order	Coleoptera (خنفساء)	Caryophyllales (قرنفليات)
Family	Dytiscidae	Polygonaceae
Genus	Agabus	Polygonum
Species	Agabus brunneus	Polygonum patulum

Conservation Status

Brown Diving Beetle

EX — Extinct

Red-knotgrass

NE — Not Evaluated

Physical Characteristics

Attribute	Brown Diving Beetle	Red-knotgrass
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.

Red-knotgrass

Habitat

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

Range

Widely distributed across Europe (16 countries), North America (Canada, United States), Oceania and the Pacific (Australia), and South America (Colombia).

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