False Bruce Spanworm vs small tortoiseshell

Macaria loricaria compared with Aglais urticae

Taxonomic Classification

Rank	False Bruce Spanworm	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	Geometridae	Nymphalidae (Brush-footed Butterflies)
Genus	Macaria	Aglais
Species	Macaria loricaria	Aglais urticae

Evolutionary Relationship

False Bruce Spanworm and small tortoiseshell share a common ancestor at the Order level: Lepidoptera. (Butterflies & Moths)

Conservation Status

False Bruce Spanworm

NT — Near Threatened

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	False Bruce Spanworm	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

False Bruce Spanworm

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Norway, Sweden, and United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden