zérène de lorme vs pesse deau

Abraxas sylvata compared with Hippuris vulgaris

Taxonomic Classification

Rank	zérène de lorme	pesse deau
Kingdom	Animalia (animal)	Plantae (plante)
Phylum	Arthropoda (arthropodes)	Magnoliophyta (Flowering Plants)
Class	Insecta (insecte)	Magnoliopsida (Dicots)
Order	Lepidoptera (Butterflies & Moths)	Lamiales (Lamiales)
Family	Geometridae	Plantaginaceae
Genus	Abraxas	Hippuris
Species	Abraxas sylvata	Hippuris vulgaris

Conservation Status

zérène de lorme

VU — Vulnerable

pesse deau

VU — Vulnerable

Physical Characteristics

Attribute	zérène de lorme	pesse deau
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

zérène de lorme

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

pesse deau

Habitat

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

Range

Widely distributed across Asia (India), Europe (8 countries), and North America (Canada, United States). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

zérène de lorme

The clouded magpie (Abraxas sylvata) is a geometrid moth in the family Geometridae found across temperate Europe, extending eastward through Russia to Japan. The adult wingspan measures approximately 32–42 mm, with white wings bearing a distinctive pattern of yellow-orange and dark grey to black spots and patches arranged in rows across the forewing and hindwing, creating a striking patterned appearance resembling the magpie coloring of the related magpie moth Abraxas grossulariata, but with a more yellowish, muted tone and less black — hence 'clouded.' Adults fly in one generation from June to July, resting on leaf surfaces and attending woodland flowers for nectar. The larvae feed on wych elm (Ulmus glabra) and occasionally other Ulmus species in mature deciduous woodland and woodland edges. The clouded magpie has become less common in parts of its European range due to the widespread loss of mature elms from Dutch elm disease, which devastated European elm populations from the 1970s onward. Conservation of this species requires the protection of surviving mature elm trees and management of regrowth elms in woodland ecosystems.

pesse deau

<em>Hippuris vulgaris</em>, the common mare's tail, is an aquatic vascular plant in the family Plantaginaceae, found across Asia (including India), Europe, and North America. It is classified as Vulnerable on the IUCN Red List, reflecting population declines associated with wetland drainage, water pollution, and habitat modification. This species typically grows in shallow freshwater habitats including lakes, ponds, rivers, and marshes, forming emergent stands with erect, unbranched stems bearing whorls of narrow leaves. Common mare's tail is often confused with the unrelated horsetail (Equisetum), but belongs to a different plant lineage. It provides important ecological services in aquatic ecosystems, offering shelter for aquatic invertebrates and small fish while helping to stabilize sediments along shorelines. The species is wind-pollinated and produces small, inconspicuous flowers. Its tolerance for cold temperatures enables it to persist in subarctic and alpine freshwater environments. Ongoing wetland loss across its range poses the primary conservation challenge for this species.