small tortoiseshell vs thin-necked bladderworm

Aglais urticae compared with Taenia hydatigena

Key Differences

• small tortoiseshell is Near Threatened while thin-necked bladderworm is Not Evaluated.

Taxonomic Classification

Rank	small tortoiseshell	thin-necked bladderworm
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Platyhelminthes (Platyhelminthes)
Class	Insecta (Insects)	Cestoda (Cestoda)
Order	Lepidoptera (Butterflies & Moths)	Cyclophyllidea (Cyclophyllidea)
Family	Nymphalidae (Brush-footed Butterflies)	Taeniidae
Genus	Aglais	Taenia
Species	Aglais urticae	Taenia hydatigena

Evolutionary Relationship

small tortoiseshell and thin-necked bladderworm share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

small tortoiseshell

NT — Near Threatened

thin-necked bladderworm

NE — Not Evaluated

Physical Characteristics

Attribute	small tortoiseshell	thin-necked bladderworm
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic 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.

thin-necked bladderworm

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway, Portugal, and Sweden.

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:

🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden