Brook-Side Feather-Moss vs small tortoiseshell

Hygroamblystegium fluviatile compared with Aglais urticae

Key Differences

Brook-Side Feather-Moss is Critically Endangered while small tortoiseshell is Near Threatened.

Taxonomic Classification

Rank	Brook-Side Feather-Moss	small tortoiseshell
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Bryophyta	Arthropoda (Arthropods)
Class	Bryopsida (Bryopsida)	Insecta (Insects)
Order	Hypnales (Hypnales)	Lepidoptera (Butterflies & Moths)
Family	Amblystegiaceae	Nymphalidae (Brush-footed Butterflies)
Genus	Hygroamblystegium	Aglais
Species	Hygroamblystegium fluviatile	Aglais urticae

Conservation Status

Brook-Side Feather-Moss

CR — Critically Endangered

small tortoiseshell

NT — Near Threatened

Physical Characteristics

Attribute	Brook-Side Feather-Moss	small tortoiseshell
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook-Side Feather-Moss

Habitat

Inhabits temperate broadleaf and mixed forests and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, Norway, Portugal, and United States. 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.

Brook-Side Feather-Moss

The Brook-Side Feather-Moss (Hygroamblystegium fluviatile) is a species in the genus Hygroamblystegium. It is currently classified as Critically Endangered on the IUCN Red List. Inhabits temperate broadleaf and mixed forests and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

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.