arctic threadwort vs small tortoiseshell

Cephaloziella varians compared with Aglais urticae

Key Differences

• arctic threadwort is Least Concern while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	arctic threadwort	small tortoiseshell
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Marchantiophyta (liverwort)	Arthropoda (Arthropods)
Class	Jungermanniopsida (Jungermanniopsida)	Insecta (Insects)
Order	Jungermanniales (Jungermanniales)	Lepidoptera (Butterflies & Moths)
Family	Cephaloziellaceae	Nymphalidae (Brush-footed Butterflies)
Genus	Cephaloziella	Aglais
Species	Cephaloziella varians	Aglais urticae

Conservation Status

arctic threadwort

LC — Least Concern

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	arctic threadwort	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

arctic threadwort

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across 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.

arctic threadwort

The Arctic threadwort (Cephaloziella varians) is a species in the genus Cephaloziella. It is currently classified as Least Concern on the IUCN Red List. Native to Europe and North America, inhabiting ecosystems characteristic of the region.

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 2 countries:

🇳🇴 Norway 🇸🇪 Sweden