Chestnut Coloured Click Beetle vs Medusa Brittlestem

Anostirus castaneus compared with Psathyrella caput-medusae

Key Differences

• Chestnut Coloured Click Beetle is Least Concern while Medusa Brittlestem is Endangered.

Taxonomic Classification

Rank	Chestnut Coloured Click Beetle	Medusa Brittlestem
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Arthropoda (Arthropods)	Basidiomycota (Club Fungi)
Class	Insecta (Insects)	Agaricomycetes (Mushrooms)
Order	Coleoptera (Beetles)	Agaricales (Gilled Mushrooms)
Family	Elateridae	Psathyrellaceae
Genus	Anostirus	Psathyrella
Species	Anostirus castaneus	Psathyrella caput-medusae

Conservation Status

Chestnut Coloured Click Beetle

LC — Least Concern

Medusa Brittlestem

EN — Endangered

Physical Characteristics

Attribute	Chestnut Coloured Click Beetle	Medusa Brittlestem
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chestnut Coloured Click Beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

Medusa Brittlestem

Habitat

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

Range

Distributed across Denmark, Norway, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Chestnut Coloured Click Beetle

The Chestnut Coloured Click Beetle (Anostirus castaneus) is a species in the genus Anostirus. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden