Éider común vs Common Flat-body

Somateria mollissima compared with Agonopterix heracliana

Key Differences

• Éider común is Near Threatened while Common Flat-body is Least Concern.

Taxonomic Classification

Rank	Éider común	Common Flat-body
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (cordados)	Arthropoda (artrópodos)
Class	Aves (Birds)	Insecta (insecto)
Order	Anseriformes (Anseriformes)	Lepidoptera (Butterflies & Moths)
Family	Anatidae	Depressariidae
Genus	Somateria	Agonopterix
Species	Somateria mollissima	Agonopterix heracliana

Evolutionary Relationship

Éider común and Common Flat-body share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Éider común

NT — Near Threatened

Common Flat-body

LC — Least Concern

Physical Characteristics

Attribute	Éider común	Common Flat-body
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Éider común

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (5 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Common Flat-body

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Éider común

El éider común (Somateria mollissima) está clasificado como Casi Amenazado (NT) en la Lista Roja de la UICN. Próximo a calificar como amenazado, con poblaciones que podrían volverse vulnerables sin acciones de conservación.

Common Flat-body

<em>Agonopterix heracliana</em> is a moth belonging to the family Depressariidae within the order Lepidoptera. Commonly known as the common flat-body, this species is named for the flattened resting posture characteristic of the genus Agonopterix. The species is classified as Least Concern on the IUCN Red List, with no indication of significant population decline. <em>Agonopterix heracliana</em> is distributed across northwestern Europe, with documented occurrences in Belgium, Denmark, Norway, and Sweden. Larvae of this species are typically associated with plants in the family Apiaceae, particularly hogweed (Heracleum sphondylium) and related umbellifers, upon which they feed while sheltering in rolled or folded leaves. Adults are typically brownish with subtle markings and are active from late summer through winter and early spring, overwintering as adults — an unusual life history trait among moths. The species inhabits hedgerows, woodland margins, and meadows where its host plants are abundant. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden