Brown Diving Beetle vs Variable Bluet

Agabus brunneus compared with Coenagrion pulchellum

Key Differences

• Brown Diving Beetle is Extinct while Variable Bluet is Endangered.

Taxonomic Classification

Rank	Brown Diving Beetle	Variable Bluet
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Arthropoda (节肢动物门)	Arthropoda (节肢动物门)
Class same	Insecta (昆蟲綱)	Insecta (昆蟲綱)
Order	Coleoptera (鞘翅目)	Odonata (蜻蜓目)
Family	Dytiscidae	Coenagrionidae
Genus	Agabus	Coenagrion
Species	Agabus brunneus	Coenagrion pulchellum

Evolutionary Relationship

Brown Diving Beetle and Variable Bluet share a common ancestor at the Class level: Insecta. (昆蟲綱)

Conservation Status

Brown Diving Beetle

EX — Extinct

Variable Bluet

EN — Endangered

Physical Characteristics

Attribute	Brown Diving Beetle	Variable Bluet
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.

Variable Bluet

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden. 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.

Variable Bluet

多变蟌(Coenagrion pulchellum)在IUCN红色名录中被评为濒危(EN)。在野外有较高的灭绝风险，种群数量显著下降，生存面临持续威胁。

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇸🇪 Sweden