Ocillate rove beetle vs small tortoiseshell

Omalium rivulare compared with Aglais urticae

Key Differences

• Ocillate rove beetle is Least Concern while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Ocillate rove 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	Staphylinidae	Nymphalidae (Brush-footed Butterflies)
Genus	Omalium	Aglais
Species	Omalium rivulare	Aglais urticae

Evolutionary Relationship

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

Conservation Status

Ocillate rove beetle

LC — Least Concern

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Ocillate rove beetle	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ocillate rove beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

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 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden