Azalea Gall vs small tortoiseshell

Exobasidium japonicum compared with Aglais urticae

Key Differences

• Azalea Gall is Least Concern while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Azalea Gall	small tortoiseshell
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Arthropoda (Arthropods)
Class	Exobasidiomycetes (Exobasidiomycetes)	Insecta (Insects)
Order	Exobasidiales (Exobasidiales)	Lepidoptera (Butterflies & Moths)
Family	Exobasidiaceae	Nymphalidae (Brush-footed Butterflies)
Genus	Exobasidium	Aglais
Species	Exobasidium japonicum	Aglais urticae

Conservation Status

Azalea Gall

LC — Least Concern

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Azalea Gall	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Azalea Gall

Habitat

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

Range

Found across Asia (Taiwan) and Europe (6 countries).

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.

Azalea Gall

The Azalea Gall (Exobasidium japonicum) is a species in the genus Exobasidium. It is currently classified as Least Concern on the IUCN Red List. Native to Asia and 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 6 countries:

🇦🇹 Austria 🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇵🇱 Poland 🇸🇪 Sweden