Predacious diving beetle vs small tortoiseshell

Hydroporus guernei compared with Aglais urticae

Key Differences

• Predacious diving beetle is Endangered while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Predacious diving beetle	small tortoiseshell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class same	Insecta (Insects)	Insecta (Insects)
Order	Coleoptera (Beetles)	Lepidoptera (Butterflies & Moths)
Family	Dytiscidae	Nymphalidae (Brush-footed Butterflies)
Genus	Hydroporus	Aglais
Species	Hydroporus guernei	Aglais urticae

Evolutionary Relationship

Predacious diving beetle and small tortoiseshell share a common ancestor at the Class level: Insecta. (Insects)

Conservation Status

Predacious diving beetle

EN — Endangered

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Predacious diving beetle	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

small tortoiseshell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (41 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

small tortoiseshell

small tortoiseshell (Aglais urticae) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.

Shared Countries

Both species can be found in 1 countries:

🇵🇹 Portugal