Brown oak slender vs Medusa Brittlestem

Acrocercops brongniardella compared with Psathyrella caput-medusae

Key Differences

• Brown oak slender is Least Concern while Medusa Brittlestem is Endangered.

Taxonomic Classification

Rank	Brown oak slender	Medusa Brittlestem
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Arthropoda (Arthropods)	Basidiomycota (Club Fungi)
Class	Insecta (Insects)	Agaricomycetes (Mushrooms)
Order	Lepidoptera (Butterflies & Moths)	Agaricales (Gilled Mushrooms)
Family	Gracillariidae	Psathyrellaceae
Genus	Acrocercops	Psathyrella
Species	Acrocercops brongniardella	Psathyrella caput-medusae

Conservation Status

Brown oak slender

LC — Least Concern

Medusa Brittlestem

EN — Endangered

Physical Characteristics

Attribute	Brown oak slender	Medusa Brittlestem
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown oak slender

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (9 countries).

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.

Brown oak slender

The Brown Oak Slender (Acrocercops brongniardella) is a species in the genus Acrocercops. 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