Alder leaf beetle vs Rock Foam

Agelastica alni compared with Stereocaulon saxatile

Key Differences

• Alder leaf beetle is Least Concern while Rock Foam is Near Threatened.

Taxonomic Classification

Rank	Alder leaf beetle	Rock Foam
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Arthropoda (Arthropods)	Ascomycota (Sac Fungi)
Class	Insecta (Insects)	Lecanoromycetes (Lecanoromycetes)
Order	Coleoptera (Beetles)	Lecanorales (Lecanorales)
Family	Chrysomelidae	Stereocaulaceae
Genus	Agelastica	Stereocaulon
Species	Agelastica alni	Stereocaulon saxatile

Conservation Status

Alder leaf beetle

LC — Least Concern

Rock Foam

NT — Near Threatened

Physical Characteristics

Attribute	Alder leaf beetle	Rock Foam
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.

Rock Foam

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Sweden, and United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States