red underwing vs small tortoiseshell

Catocala nupta compared with Aglais urticae

Key Differences

• red underwing is Endangered while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	red underwing	small tortoiseshell
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Arthropoda (节肢动物门)	Arthropoda (节肢动物门)
Class same	Insecta (昆蟲綱)	Insecta (昆蟲綱)
Order same	Lepidoptera (鱗翅目)	Lepidoptera (鱗翅目)
Family	Erebidae	Nymphalidae (Brush-footed Butterflies)
Genus	Catocala	Aglais
Species	Catocala nupta	Aglais urticae

Evolutionary Relationship

red underwing and small tortoiseshell share a common ancestor at the Order level: Lepidoptera. (鱗翅目)

Conservation Status

red underwing

EN — Endangered

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	red underwing	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

red underwing

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

小玳瑁蛱蝶(Aglais urticae)在IUCN红色名录中被列为近危(NT)物种。接近符合受威胁种标准，如无保护措施，种群可能变得脆弱。

Shared Countries

Both species can be found in 4 countries:

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