Alder leaf beetle vs Shelled Slug

Agelastica alni compared with Testacella haliotidea

Key Differences

• Alder leaf beetle is Least Concern while Shelled Slug is Data Deficient.

Taxonomic Classification

Rank	Alder leaf beetle	Shelled Slug
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Mollusca (Mollusks)
Class	Insecta (Insects)	Gastropoda (Gastropoda)
Order	Coleoptera (Beetles)	Stylommatophora (Stylommatophora)
Family	Chrysomelidae	Testacellidae
Genus	Agelastica	Testacella
Species	Agelastica alni	Testacella haliotidea

Evolutionary Relationship

Alder leaf beetle and Shelled Slug share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Alder leaf beetle

LC — Least Concern

Shelled Slug

DD — Data Deficient

Physical Characteristics

Attribute	Alder leaf beetle	Shelled Slug
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.

Shelled Slug

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Widely distributed across Europe (9 countries), North America (United States), and Oceania and the Pacific (New Zealand).

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 3 countries:

🇧🇪 Belgium 🇸🇪 Sweden 🇺🇸 United States