Scallop Shell vs small tortoiseshell

Rheumaptera undulata compared with Aglais urticae

Key Differences

• Scallop Shell is Least Concern while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Scallop Shell	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	Geometridae	Nymphalidae (Brush-footed Butterflies)
Genus	Rheumaptera	Aglais
Species	Rheumaptera undulata	Aglais urticae

Evolutionary Relationship

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

Conservation Status

Scallop Shell

LC — Least Concern

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Scallop Shell	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Scallop Shell

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Canada, Denmark, Norway, and United States.

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 2 countries:

🇩🇰 Denmark 🇳🇴 Norway