Constricted Treacle Mustard vs small tortoiseshell

Erysimum contractum compared with Aglais urticae

Key Differences

Constricted Treacle Mustard is Vulnerable while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Constricted Treacle Mustard	small tortoiseshell
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Arthropoda (Arthropods)
Class	Magnoliopsida (Dicots)	Insecta (Insects)
Order	Brassicales (Brassicales)	Lepidoptera (Butterflies & Moths)
Family	Brassicaceae	Nymphalidae (Brush-footed Butterflies)
Genus	Erysimum	Aglais
Species	Erysimum contractum	Aglais urticae

Conservation Status

Constricted Treacle Mustard

VU — Vulnerable

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Constricted Treacle Mustard	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Constricted Treacle Mustard

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

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 (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.