Azorean predacious diving beetle vs Common Periwinkle

Agabus godmanni compared with Littorina littorea

Key Differences

• Azorean predacious diving beetle is Endangered while Common Periwinkle is Least Concern.

Taxonomic Classification

Rank	Azorean predacious diving beetle	Common Periwinkle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Mollusca (Mollusks)
Class	Insecta (Insects)	Gastropoda (Gastropoda)
Order	Coleoptera (Beetles)	Littorinimorpha (Littorinimorpha)
Family	Dytiscidae	Littorinidae
Genus	Agabus	Littorina
Species	Agabus godmanni	Littorina littorea

Evolutionary Relationship

Azorean predacious diving beetle and Common Periwinkle share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Azorean predacious diving beetle

EN — Endangered

Common Periwinkle

LC — Least Concern

Physical Characteristics

Attribute	Azorean predacious diving beetle	Common Periwinkle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Azorean predacious diving beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found in Portugal. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Periwinkle

Habitat

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

Range

Found across Europe (4 countries) and North America (Canada, United States).

Azorean predacious diving beetle

The Azorean predacious diving beetle (Agabus godmanni) is a species in the genus Agabus. It is currently classified as Endangered on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Common Periwinkle

Common Periwinkle (Littorina littorea) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.