Flat Periwinkle vs small tortoiseshell

Littorina obtusata compared with Aglais urticae

Key Differences

• Flat Periwinkle is Least Concern while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Flat Periwinkle	small tortoiseshell
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Mollusca (软体动物门)	Arthropoda (节肢动物门)
Class	Gastropoda (腹足纲)	Insecta (昆蟲綱)
Order	Littorinimorpha (滨螺形目)	Lepidoptera (鱗翅目)
Family	Littorinidae	Nymphalidae (Brush-footed Butterflies)
Genus	Littorina	Aglais
Species	Littorina obtusata	Aglais urticae

Evolutionary Relationship

Flat Periwinkle and small tortoiseshell share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

Flat Periwinkle

LC — Least Concern

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Flat Periwinkle	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Flat Periwinkle

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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