Dwarf Bladder-moss vs small tortoiseshell

Physcomitrium sphaericum compared with Aglais urticae

Key Differences

• Dwarf Bladder-moss is Critically Endangered while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Dwarf Bladder-moss	small tortoiseshell
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Bryophyta	Arthropoda (Arthropods)
Class	Bryopsida (Bryopsida)	Insecta (Insects)
Order	Funariales (Funariales)	Lepidoptera (Butterflies & Moths)
Family	Funariaceae	Nymphalidae (Brush-footed Butterflies)
Genus	Physcomitrium	Aglais
Species	Physcomitrium sphaericum	Aglais urticae

Conservation Status

Dwarf Bladder-moss

CR — Critically Endangered

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Dwarf Bladder-moss	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dwarf Bladder-moss

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Luxembourg, and Sweden. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

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 3 countries:

🇧🇪 Belgium 🇱🇺 Luxembourg 🇸🇪 Sweden