Aspen Bracket vs small tortoiseshell

Phellinus tremulae compared with Aglais urticae

Key Differences

Aspen Bracket is Vulnerable while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Aspen Bracket	small tortoiseshell
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Arthropoda (Arthropods)
Class	Agaricomycetes (Mushrooms)	Insecta (Insects)
Order	Hymenochaetales (Hymenochaetales)	Lepidoptera (Butterflies & Moths)
Family	Hymenochaetaceae	Nymphalidae (Brush-footed Butterflies)
Genus	Phellinus	Aglais
Species	Phellinus tremulae	Aglais urticae

Conservation Status

Aspen Bracket

VU — Vulnerable

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Aspen Bracket	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Aspen Bracket

Habitat

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

Range

Distributed across Denmark, Norway, Sweden, and United States. 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.

Aspen Bracket

The Aspen Bracket (Phellinus tremulae) is a species in the genus Phellinus. It is currently classified as Vulnerable on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems. Distributed across Denmark, Norway, Sweden, and United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.