Brown Diving Beetle vs Clustered Pine Bonnet

Agabus brunneus compared with Mycena stipata

Key Differences

Brown Diving Beetle is Extinct while Clustered Pine Bonnet is Least Concern.

Taxonomic Classification

Rank	Brown Diving Beetle	Clustered Pine Bonnet
Kingdom	Animalia (สัตว์)	Fungi (เห็ดรา)
Phylum	Arthropoda (สัตว์ขาปล้อง)	Basidiomycota (Club Fungi)
Class	Insecta (แมลง)	Agaricomycetes (Mushrooms)
Order	Coleoptera (อันดับด้วง)	Agaricales (Gilled Mushrooms)
Family	Dytiscidae	Mycenaceae
Genus	Agabus	Mycena
Species	Agabus brunneus	Mycena stipata

Conservation Status

Brown Diving Beetle

EX — Extinct

Clustered Pine Bonnet

LC — Least Concern

Physical Characteristics

Attribute	Brown Diving Beetle	Clustered Pine Bonnet
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.

Clustered Pine Bonnet

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.

Clustered Pine Bonnet

Mycena stipata, the clustered pine bonnet, is a small saprotrophic fungus in the family Mycenaceae that grows in tightly clustered groups on decaying pine and conifer wood, stumps, and roots across northern Europe and boreal regions. The cap is hygrophanous, grey-brown to tan, broadly bell-shaped, and typically shows lighter tones when dry. The gills are pale grey to whitish, attached to slightly running down the stipe, and the slender stipes are often fused at the base in clustered specimens. Like many pine-associated Mycena species, M. stipata has a characteristic alkaline or bleachy odor and bitter taste. It is distributed primarily in northern Europe including Scandinavia and the British Isles, corresponding to the range of its principal substrate, Scots pine and other coniferous trees. The species is classified as Least Concern by the IUCN. Mycena species play important ecological roles as decomposers of wood and litter in coniferous and mixed forest ecosystems, contributing to nutrient cycling and soil formation. The genus contains hundreds of species, many of which require microscopic examination for definitive identification.