Coastal Flat-body vs Common Woodrush

Agonopterix yeatiana compared with Luzula campestris

Key Differences

Coastal Flat-body is Near Threatened while Common Woodrush is Least Concern.

Taxonomic Classification

Rank	Coastal Flat-body	Common Woodrush
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Arthropoda (Arthropods)	Magnoliophyta (Flowering Plants)
Class	Insecta (Insects)	Liliopsida (Monocots)
Order	Lepidoptera (Butterflies & Moths)	Poales (Grasses)
Family	Depressariidae	Juncaceae
Genus	Agonopterix	Luzula
Species	Agonopterix yeatiana	Luzula campestris

Conservation Status

Coastal Flat-body

NT — Near Threatened

Common Woodrush

LC — Least Concern

Physical Characteristics

Attribute	Coastal Flat-body	Common Woodrush
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Coastal Flat-body

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Common Woodrush

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Neotropic biogeographic realm.

Range

Widely distributed across Europe (6 countries), North America (Canada, Costa Rica, United States), Oceania and the Pacific (Australia), and South America (Chile).

Coastal Flat-body

Agonopterix yeatiana, the coastal flat-body, is a small moth in the family Depressariidae native to coastal and calcareous grassland habitats across western and northern Europe, with records from Belgium, Denmark, and Sweden. Moths in the family Depressariidae, commonly called flat-body moths due to the depressed posture they adopt when resting with wings held flat against the surface, are associated predominantly with umbellifer plants of the family Apiaceae as larval hosts. Agonopterix yeatiana larvae feed on wild carrot (Daucus carota), wild parsnip (Pastinaca sativa), and related coastal and grassland Apiaceae species, inhabiting the open, often calcareous or sandy habitats where these plants grow. Adult moths have greyish-brown forewing with a distinctive pattern of spots and dashes and reach approximately 8–12 millimeters in wingspan. The species is classified as Near Threatened by the IUCN, reflecting declines associated with the loss of traditional hay meadow management, coastal grassland degradation, and scrub encroachment that eliminates the open, flower-rich grassland habitats supporting its host plants. Agricultural intensification has reduced wild umbellifer populations significantly across lowland Europe, reducing food resources for larvae of specialist moths like A. yeatiana.

Common Woodrush

<em>Luzula campestris</em>, the common woodrush or field woodrush, is a small perennial plant in the family Juncaceae. It is widespread across Europe, western Asia, and northern Africa, with naturalized populations established in parts of North America and other temperate regions. The species typically colonizes short grasslands, heathlands, lawns, roadside verges, and open woodland clearings, preferring slightly acidic, well-drained soils with low nutrient levels. Plants form low, tufted rosettes of narrow, grass-like leaves fringed with long white hairs, a diagnostic feature of the genus. Flowering stems reach 5–30 cm and bear nodding, chestnut-brown flower clusters in early spring, making it one of the earlier flowering grassland plants. Biological traits such as precise lifespan, body dimensions, and detailed weight data remain poorly documented at the species level. <em>Luzula campestris</em> is an important indicator of ancient, unimproved grassland habitats in Britain and Europe, and its presence is often associated with high botanical diversity. It is assessed as Least Concern, reflecting stable populations across its native range, though localized declines may occur where intensive agriculture reduces suitable habitat.