Bearded Tooth vs Brown Diving Beetle

Hericium erinaceus compared with Agabus brunneus

Key Differences

Bearded Tooth is Critically Endangered while Brown Diving Beetle is Extinct.

Taxonomic Classification

Rank	Bearded Tooth	Brown Diving Beetle
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Arthropoda (Arthropods)
Class	Agaricomycetes (Mushrooms)	Insecta (Insects)
Order	Russulales (Russulales)	Coleoptera (Beetles)
Family	Hericiaceae	Dytiscidae
Genus	Hericium	Agabus
Species	Hericium erinaceus	Agabus brunneus

Conservation Status

Bearded Tooth

CR — Critically Endangered

Brown Diving Beetle

EX — Extinct

Physical Characteristics

Attribute	Bearded Tooth	Brown Diving Beetle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bearded Tooth

Habitat

Inhabits tropical and subtropical moist broadleaf forests and temperate broadleaf and mixed forests spanning the Indomalayan and Palearctic realms.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and North America (United States). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Brown Diving Beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium and Sweden.

Bearded Tooth

The Bearded Tooth (Hericium erinaceus) is a species in the genus Hericium. It is currently classified as Critically Endangered on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests and temperate broadleaf and mixed forests spanning the Indomalayan and Palearctic realms.

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.