marbled crayfish vs small tortoiseshell

Procambarus virginalis compared with Aglais urticae

Key Differences

• marbled crayfish is Not Evaluated while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	marbled crayfish	small tortoiseshell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class	Malacostraca (Crustaceans)	Insecta (Insects)
Order	Decapoda (Decapoda)	Lepidoptera (Butterflies & Moths)
Family	Cambaridae	Nymphalidae (Brush-footed Butterflies)
Genus	Procambarus	Aglais
Species	Procambarus virginalis	Aglais urticae

Evolutionary Relationship

marbled crayfish and small tortoiseshell share a common ancestor at the Phylum level: Arthropoda. (Arthropods)

Conservation Status

marbled crayfish

NE — Not Evaluated

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	marbled crayfish	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

marbled crayfish

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Widely distributed across Africa (Madagascar), Asia (Taiwan), and Europe (4 countries).

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 4 countries:

🇩🇰 Denmark 🇲🇹 Malta 🇳🇴 Norway 🇸🇪 Sweden