Giant Elm Bracket vs small tortoiseshell

Rigidoporus ulmarius compared with Aglais urticae

Key Differences

• Giant Elm Bracket is Not Evaluated while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Giant Elm Bracket	small tortoiseshell
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Arthropoda (Arthropods)
Class	Agaricomycetes (Mushrooms)	Insecta (Insects)
Order	Polyporales (Polyporales)	Lepidoptera (Butterflies & Moths)
Family	Meripilaceae	Nymphalidae (Brush-footed Butterflies)
Genus	Rigidoporus	Aglais
Species	Rigidoporus ulmarius	Aglais urticae

Conservation Status

Giant Elm Bracket

NE — Not Evaluated

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Giant Elm Bracket	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Giant Elm Bracket

Habitat

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

Range

Distributed across Brazil, Norway, and Portugal.

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 2 countries:

🇳🇴 Norway 🇵🇹 Portugal