Alder leaf beetle vs Spotted Brittlestem

Agelastica alni compared with Psathyrella maculata

Key Differences

• Alder leaf beetle is Least Concern while Spotted Brittlestem is Vulnerable.

Taxonomic Classification

Rank	Alder leaf beetle	Spotted Brittlestem
Kingdom	Animalia (动物界)	Fungi (真菌界)
Phylum	Arthropoda (节肢动物门)	Basidiomycota (担子菌门)
Class	Insecta (昆蟲綱)	Agaricomycetes (傘菌綱)
Order	Coleoptera (鞘翅目)	Agaricales (伞菌目)
Family	Chrysomelidae	Psathyrellaceae
Genus	Agelastica	Psathyrella
Species	Agelastica alni	Psathyrella maculata

Conservation Status

Alder leaf beetle

LC — Least Concern

Spotted Brittlestem

VU — Vulnerable

Physical Characteristics

Attribute	Alder leaf beetle	Spotted Brittlestem
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alder leaf beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

Spotted Brittlestem

Habitat

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

Range

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

Alder leaf beetle

The Alder leaf beetle (Agelastica alni) is a species in the genus Agelastica. 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 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden