Bistort Silver Rust vs small tortoiseshell

Microbotryum marginale compared with Aglais urticae

Key Differences

• Bistort Silver Rust is Not Evaluated while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Bistort Silver Rust	small tortoiseshell
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Arthropoda (Arthropods)
Class	Microbotryomycetes (Microbotryomycetes)	Insecta (Insects)
Order	Microbotryales (Microbotryales)	Lepidoptera (Butterflies & Moths)
Family	Microbotryaceae	Nymphalidae (Brush-footed Butterflies)
Genus	Microbotryum	Aglais
Species	Microbotryum marginale	Aglais urticae

Conservation Status

Bistort Silver Rust

NE — Not Evaluated

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Bistort Silver Rust	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bistort Silver Rust

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium and Sweden.

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.

Bistort Silver Rust

The Bistort Silver Rust (Microbotryum marginale) is a species in the genus Microbotryum. Native to Europe, inhabiting ecosystems characteristic of the region.

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:

🇧🇪 Belgium 🇸🇪 Sweden