dark crimson underwing vs small tortoiseshell

Catocala sponsa compared with Aglais urticae

Key Differences

• dark crimson underwing is Least Concern while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	dark crimson underwing	small tortoiseshell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class same	Insecta (Insects)	Insecta (Insects)
Order same	Lepidoptera (Butterflies & Moths)	Lepidoptera (Butterflies & Moths)
Family	Erebidae	Nymphalidae (Brush-footed Butterflies)
Genus	Catocala	Aglais
Species	Catocala sponsa	Aglais urticae

Evolutionary Relationship

dark crimson underwing and small tortoiseshell share a common ancestor at the Order level: Lepidoptera. (Butterflies & Moths)

Conservation Status

dark crimson underwing

LC — Least Concern

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	dark crimson underwing	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

dark crimson underwing

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and Ukraine.

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 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇦 Ukraine