Common Flat-body vs Common Flax

Agonopterix heracliana compared with Linum usitatissimum

Key Differences

• Common Flat-body is Least Concern while Common Flax is Not Evaluated.

Taxonomic Classification

Rank	Common Flat-body	Common Flax
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Insecta (Insects)	Magnoliopsida (Dicots)
Order	Lepidoptera (Butterflies & Moths)	Malpighiales (Malpighiales)
Family	Depressariidae	Linaceae
Genus	Agonopterix	Linum
Species	Agonopterix heracliana	Linum usitatissimum

Conservation Status

Common Flat-body

LC — Least Concern

Common Flax

NE — Not Evaluated

Physical Characteristics

Attribute	Common Flat-body	Common Flax
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Flat-body

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Common Flax

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Widely distributed across Africa (Angola, Morocco, Zimbabwe), Asia (10 countries), Europe (25 countries), North America (Canada, United States), Oceania and the Pacific (Australia), and South America (4 countries).

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.

Common Flax

<em>Linum usitatissimum</em> is an annual flowering plant in the family Linaceae, order Malpighiales, commonly known as common flax or linseed. This species has been cultivated by humans for thousands of years and is one of the oldest domesticated crops, valued for both its fiber (used to produce linen textiles) and its seeds (source of linseed oil and dietary flaxseed). <em>Linum usitatissimum</em> has an exceptionally broad global distribution through cultivation and naturalization, with presence documented across Africa, Asia, Europe, North America, Oceania, and South America. The plant typically grows as a slender, erect annual reaching approximately 1.2 meters in height, bearing narrow leaves and distinctive pale blue to white five-petaled flowers. It favors well-drained soils in temperate to subtropical climates and is widely grown as a commercial crop. The species thrives in open, sunny habitats. 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