Brown Diving Beetle vs Mourning Cloak

Agabus brunneus compared with Nymphalis antiopa

Key Differences

• Brown Diving Beetle is Extinct while Mourning Cloak is Critically Endangered.

Taxonomic Classification

Rank	Brown Diving Beetle	Mourning Cloak
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class same	Insecta (Insects)	Insecta (Insects)
Order	Coleoptera (Beetles)	Lepidoptera (Butterflies & Moths)
Family	Dytiscidae	Nymphalidae (Brush-footed Butterflies)
Genus	Agabus	Nymphalis
Species	Agabus brunneus	Nymphalis antiopa

Evolutionary Relationship

Brown Diving Beetle and Mourning Cloak share a common ancestor at the Class level: Insecta. (Insects)

Conservation Status

Brown Diving Beetle

EX — Extinct

Mourning Cloak

CR — Critically Endangered

Physical Characteristics

Attribute	Brown Diving Beetle	Mourning Cloak
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.

Mourning Cloak

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 9 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (39 countries) and North America (Canada, United States). 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.

Mourning Cloak

Mourning Cloak (Nymphalis antiopa) 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