Chestnut Brittlestem vs small tortoiseshell

Homophron spadiceum compared with Aglais urticae

Key Differences

• Chestnut Brittlestem is Least Concern while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Chestnut Brittlestem	small tortoiseshell
Kingdom	Fungi (真菌界)	Animalia (动物界)
Phylum	Basidiomycota (担子菌门)	Arthropoda (节肢动物门)
Class	Agaricomycetes (傘菌綱)	Insecta (昆蟲綱)
Order	Agaricales (伞菌目)	Lepidoptera (鱗翅目)
Family	Psathyrellaceae	Nymphalidae (Brush-footed Butterflies)
Genus	Homophron	Aglais
Species	Homophron spadiceum	Aglais urticae

Conservation Status

Chestnut Brittlestem

LC — Least Concern

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Chestnut Brittlestem	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chestnut Brittlestem

Habitat

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

Range

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

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.

Chestnut Brittlestem

The Chestnut Brittlestem (Homophron spadiceum) is a species in the genus Homophron. It is currently classified as Least Concern on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

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 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden