Anomalous Flapwort vs Common Flat-body

Mylia anomala compared with Agonopterix heracliana

Key Differences

Anomalous Flapwort is Critically Endangered while Common Flat-body is Least Concern.

Taxonomic Classification

Rank	Anomalous Flapwort	Common Flat-body
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Marchantiophyta (liverwort)	Arthropoda (Arthropods)
Class	Jungermanniopsida (Jungermanniopsida)	Insecta (Insects)
Order	Jungermanniales (Jungermanniales)	Lepidoptera (Butterflies & Moths)
Family	Myliaceae	Depressariidae
Genus	Mylia	Agonopterix
Species	Mylia anomala	Agonopterix heracliana

Conservation Status

Anomalous Flapwort

CR — Critically Endangered

Common Flat-body

LC — Least Concern

Physical Characteristics

Attribute	Anomalous Flapwort	Common Flat-body
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Anomalous Flapwort

Habitat

Inhabits temperate broadleaf and mixed forests within the Palearctic biogeographic realm.

Range

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

Common Flat-body

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Anomalous Flapwort

The Anomalous Flapwort (Mylia anomala) is a species in the genus Mylia. It is currently classified as Critically Endangered on the IUCN Red List. Inhabits temperate broadleaf and mixed forests within the Palearctic biogeographic realm.

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.