Fused Tooth vs small tortoiseshell

Phellodon confluens compared with Aglais urticae

Key Differences

• Fused Tooth is Vulnerable while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Fused Tooth	small tortoiseshell
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Arthropoda (Arthropods)
Class	Agaricomycetes (Mushrooms)	Insecta (Insects)
Order	Thelephorales (Thelephorales)	Lepidoptera (Butterflies & Moths)
Family	Thelephoraceae	Nymphalidae (Brush-footed Butterflies)
Genus	Phellodon	Aglais
Species	Phellodon confluens	Aglais urticae

Conservation Status

Fused Tooth

VU — Vulnerable

small tortoiseshell

NT — Near Threatened

Physical Characteristics

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

Habitat & Geographic Range

Fused Tooth

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Vulnerable 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