Brown Diving Beetle vs

Agabus brunneus compared with Clitocybe barbularum

Key Differences

Brown Diving Beetle is Extinct while is Data Deficient.

Taxonomic Classification

Rank	Brown Diving Beetle
Kingdom	Animalia (animal)	Fungi (Fungi)
Phylum	Arthropoda (arthropodes)	Basidiomycota (Club Fungi)
Class	Insecta (insecte)	Agaricomycetes (Mushrooms)
Order	Coleoptera (Beetles)	Agaricales (Gilled Mushrooms)
Family	Dytiscidae	Tricholomataceae
Genus	Agabus	Clitocybe
Species	Agabus brunneus	Clitocybe barbularum

Conservation Status

Brown Diving Beetle

EX — Extinct

DD — Data Deficient

Physical Characteristics

Attribute	Brown Diving Beetle
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.

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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.

Clitocybe barbularum is a small agaric fungus in the family Tricholomataceae occurring in Northern European temperate and boreal habitats, primarily documented from Scandinavian countries. It grows in grassy areas, woodland clearings, forest margins, and occasionally on disturbed ground, fruiting in late summer through autumn. The fruiting bodies are relatively small and inconspicuous with the characteristic Clitocybe form: a depressed to shallowly funnel-shaped cap, often whitish to pale greyish or buff, with crowded, decurrent gills and a slender stipe. The specific epithet barbularum suggests an association with particular microhabitats or substrates. As a saprotrophic fungus, C. barbularum plays a role in decomposing plant litter and returning nutrients to the soil ecosystem. The broader Clitocybe genus contains both edible and mildly toxic species, and smaller pale species are approached cautiously by foragers. This species reflects the high diversity of macrofungi in Scandinavian landscapes, where boreal and mixed forest systems support exceptional fungal biodiversity.