small tortoiseshell vs Willow Pigmy

Aglais urticae compared with Stigmella obliquella

Key Differences

• small tortoiseshell is Near Threatened while Willow Pigmy is Least Concern.

Taxonomic Classification

Rank	small tortoiseshell	Willow Pigmy
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	Nymphalidae (Brush-footed Butterflies)	Nepticulidae
Genus	Aglais	Stigmella
Species	Aglais urticae	Stigmella obliquella

Evolutionary Relationship

small tortoiseshell and Willow Pigmy share a common ancestor at the Order level: Lepidoptera. (Butterflies & Moths)

Conservation Status

small tortoiseshell

NT — Near Threatened

Willow Pigmy

LC — Least Concern

Physical Characteristics

Attribute	small tortoiseshell	Willow Pigmy
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.

Willow Pigmy

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, 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 4 countries:

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