Scaly Stalkball vs small tortoiseshell

Tulostoma melanocyclum compared with Aglais urticae

Key Differences

• Scaly Stalkball is Critically Endangered while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Scaly Stalkball	small tortoiseshell
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Arthropoda (Arthropods)
Class	Agaricomycetes (Mushrooms)	Insecta (Insects)
Order	Agaricales (Gilled Mushrooms)	Lepidoptera (Butterflies & Moths)
Family	Agaricaceae (Agarics)	Nymphalidae (Brush-footed Butterflies)
Genus	Tulostoma	Aglais
Species	Tulostoma melanocyclum	Aglais urticae

Conservation Status

Scaly Stalkball

CR — Critically Endangered

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Scaly Stalkball	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Scaly Stalkball

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden