Rosette Tooth vs small tortoiseshell

Hydnellum cumulatum compared with Aglais urticae

Key Differences

• Rosette Tooth is Critically Endangered while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Rosette Tooth	small tortoiseshell
Kingdom	Fungi (เห็ดรา)	Animalia (สัตว์)
Phylum	Basidiomycota (Club Fungi)	Arthropoda (สัตว์ขาปล้อง)
Class	Agaricomycetes (Mushrooms)	Insecta (แมลง)
Order	Thelephorales (Thelephorales)	Lepidoptera (ผีเสื้อ)
Family	Bankeraceae	Nymphalidae (Brush-footed Butterflies)
Genus	Hydnellum	Aglais
Species	Hydnellum cumulatum	Aglais urticae

Conservation Status

Rosette Tooth

CR — Critically Endangered

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Rosette Tooth	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Rosette Tooth

Habitat

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

Range

Distributed across 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 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden