Lost Flat-Body vs small tortoiseshell

Depressaria depressana compared with Aglais urticae

Key Differences

• Lost Flat-Body is Endangered while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Lost Flat-Body	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	Depressariidae	Nymphalidae (Brush-footed Butterflies)
Genus	Depressaria	Aglais
Species	Depressaria depressana	Aglais urticae

Evolutionary Relationship

Lost Flat-Body and small tortoiseshell share a common ancestor at the Order level: Lepidoptera. (Butterflies & Moths)

Conservation Status

Lost Flat-Body

EN — Endangered

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Lost Flat-Body	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Lost Flat-Body

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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.

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 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden