Beech Tarcrust vs small tortoiseshell

Biscogniauxia nummularia compared with Aglais urticae

Key Differences

• Beech Tarcrust is Data Deficient while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Beech Tarcrust	small tortoiseshell
Kingdom	Fungi (真菌界)	Animalia (动物界)
Phylum	Ascomycota (子囊菌门)	Arthropoda (节肢动物门)
Class	Sordariomycetes (粪壳菌纲)	Insecta (昆蟲綱)
Order	Xylariales (炭角菌目)	Lepidoptera (鱗翅目)
Family	Graphostromataceae	Nymphalidae (Brush-footed Butterflies)
Genus	Biscogniauxia	Aglais
Species	Biscogniauxia nummularia	Aglais urticae

Conservation Status

Beech Tarcrust

DD — Data Deficient

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Beech Tarcrust	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Beech Tarcrust

Habitat

Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (7 countries), and South America (Brazil).

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.

Beech Tarcrust

The Beech Tarcrust (Biscogniauxia nummularia) is a species in the genus Biscogniauxia. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Native to Asia and Europe and South America, inhabiting ecosystems characteristic of the region.

small tortoiseshell

小玳瑁蛱蝶(Aglais urticae)在IUCN红色名录中被列为近危(NT)物种。接近符合受威胁种标准，如无保护措施，种群可能变得脆弱。

Shared Countries

Both species can be found in 7 countries:

🇦🇹 Austria 🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇮 Slovenia 🇸🇪 Sweden