red ribbon worm vs small tortoiseshell

Lineus ruber compared with Aglais urticae

Key Differences

• red ribbon worm is Not Evaluated while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	red ribbon worm	small tortoiseshell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Nemertea (Nemertea)	Arthropoda (Arthropods)
Class	Pilidiophora (Pilidiophora)	Insecta (Insects)
Order	Heteronemertea (Heteronemertea)	Lepidoptera (Butterflies & Moths)
Family	Lineidae	Nymphalidae (Brush-footed Butterflies)
Genus	Lineus	Aglais
Species	Lineus ruber	Aglais urticae

Evolutionary Relationship

red ribbon worm and small tortoiseshell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

red ribbon worm

NE — Not Evaluated

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	red ribbon worm	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

red ribbon worm

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

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