Bilberry Roller vs Northern Dusky Slug

Ancylis myrtillana compared with Arion fuscus

Key Differences

• Bilberry Roller is Least Concern while Northern Dusky Slug is Data Deficient.

Taxonomic Classification

Rank	Bilberry Roller	Northern Dusky Slug
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Mollusca (Mollusks)
Class	Insecta (Insects)	Gastropoda (Gastropoda)
Order	Lepidoptera (Butterflies & Moths)	Stylommatophora (Stylommatophora)
Family	Tortricidae	Arionidae
Genus	Ancylis	Arion
Species	Ancylis myrtillana	Arion fuscus

Evolutionary Relationship

Bilberry Roller and Northern Dusky Slug share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bilberry Roller

LC — Least Concern

Northern Dusky Slug

DD — Data Deficient

Physical Characteristics

Attribute	Bilberry Roller	Northern Dusky Slug
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bilberry Roller

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Northern Dusky Slug

Habitat

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

Range

Found across Europe (7 countries).

Bilberry Roller

The Bilberry Roller (Ancylis myrtillana) is a species in the genus Ancylis. 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