Ridged Tooth vs small tortoiseshell

Hydnellum scrobiculatum compared with Aglais urticae

Key Differences

• Ridged Tooth is Data Deficient while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Ridged 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 scrobiculatum	Aglais urticae

Conservation Status

Ridged Tooth

DD — Data Deficient

small tortoiseshell

NT — Near Threatened

Physical Characteristics

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

Habitat & Geographic Range

Ridged Tooth

Habitat

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

Range

Found across Europe (5 countries) and North America (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

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 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden