Beautiful Yellow Underwing vs Pixie Foam

Anarta myrtilli compared with Stereocaulon pileatum

Key Differences

Beautiful Yellow Underwing is Least Concern while Pixie Foam is Critically Endangered.

Taxonomic Classification

Rank	Beautiful Yellow Underwing	Pixie Foam
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Arthropoda (Arthropods)	Ascomycota (Sac Fungi)
Class	Insecta (Insects)	Lecanoromycetes (Lecanoromycetes)
Order	Lepidoptera (Butterflies & Moths)	Lecanorales (Lecanorales)
Family	Noctuidae	Stereocaulaceae
Genus	Anarta	Stereocaulon
Species	Anarta myrtilli	Stereocaulon pileatum

Conservation Status

Beautiful Yellow Underwing

LC — Least Concern

Pixie Foam

CR — Critically Endangered

Physical Characteristics

Attribute	Beautiful Yellow Underwing	Pixie Foam
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Beautiful Yellow Underwing

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Pixie Foam

Habitat

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

Range

Distributed across Denmark, Norway, Portugal, Sweden, and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Beautiful Yellow Underwing

The Beautiful Yellow Underwing (Anarta myrtilli) is a species in the genus Anarta. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.