Alder leaf beetle vs Willow Mildew

Agelastica alni compared with Erysiphe adunca

Key Differences

• Alder leaf beetle is Least Concern while Willow Mildew is Not Evaluated.

Taxonomic Classification

Rank	Alder leaf beetle	Willow Mildew
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Arthropoda (Arthropods)	Ascomycota (Sac Fungi)
Class	Insecta (Insects)	Leotiomycetes (Leotiomycetes)
Order	Coleoptera (Beetles)	Helotiales (Helotiales)
Family	Chrysomelidae	Erysiphaceae
Genus	Agelastica	Erysiphe
Species	Agelastica alni	Erysiphe adunca

Conservation Status

Alder leaf beetle

LC — Least Concern

Willow Mildew

NE — Not Evaluated

Physical Characteristics

Attribute	Alder leaf beetle	Willow Mildew
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.

Willow Mildew

Habitat

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

Range

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

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 5 countries:

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