Bleeding Broadleaf Crust vs small tortoiseshell

Stereum rugosum compared with Aglais urticae

Key Differences

• Bleeding Broadleaf Crust is Least Concern while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Bleeding Broadleaf Crust	small tortoiseshell
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Arthropoda (Arthropods)
Class	Agaricomycetes (Mushrooms)	Insecta (Insects)
Order	Russulales (Russulales)	Lepidoptera (Butterflies & Moths)
Family	Stereaceae	Nymphalidae (Brush-footed Butterflies)
Genus	Stereum	Aglais
Species	Stereum rugosum	Aglais urticae

Conservation Status

Bleeding Broadleaf Crust

LC — Least Concern

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Bleeding Broadleaf Crust	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bleeding Broadleaf Crust

Habitat

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

Range

Distributed across Belgium, Norway, Portugal, Sweden, and Taiwan.

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.

Bleeding Broadleaf Crust

The Bleeding Broadleaf Crust (Stereum rugosum) is a species in the genus Stereum. It is currently classified as Least Concern on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

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 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden