Blistered Toadskin Lichen vs small tortoiseshell

Lasallia pustulata compared with Aglais urticae

Key Differences

• Blistered Toadskin Lichen is Least Concern while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Blistered Toadskin Lichen	small tortoiseshell
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Arthropoda (Arthropods)
Class	Lecanoromycetes (Lecanoromycetes)	Insecta (Insects)
Order	Umbilicariales (Umbilicariales)	Lepidoptera (Butterflies & Moths)
Family	Umbilicariaceae	Nymphalidae (Brush-footed Butterflies)
Genus	Lasallia	Aglais
Species	Lasallia pustulata	Aglais urticae

Conservation Status

Blistered Toadskin Lichen

LC — Least Concern

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Blistered Toadskin Lichen	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blistered Toadskin Lichen

Habitat

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

Range

Distributed across Denmark, Norway, Portugal, Sweden, 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.

Blistered Toadskin Lichen

The Blistered Toadskin Lichen (Lasallia pustulata) is a species in the genus Lasallia. It is currently classified as Least Concern on the IUCN Red List. Native to Europe and North America, 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 4 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden