Insects of Britain and Ireland: the genera of Lepidoptera-Geometridae
Euphia, Lygris, Steganolophia.
Adults. Crepuscular and nocturnal (commonly attracted to light). Antennae of males simple; simply-ciliate. Face smooth to rough.
Wingspan 33–42 mm. Forewings relatively broad. The outer margin of the forewing slightly sigmoid-curved, or convexly curved. Forewings brown, ochreous yellow or reddish-grey; predominantly ochreous, or cream, or yellow, or purple, purplish, red, pinkish or rosy, or brown; without a clear discal mark; with a distinct median band (then the band dark, sometimes lighter down the middle), or without a median band. The outer margin of the hindwings smooth. Hindwings conspicuously patterned, or plain; grey, greyish-white or pale yellowish; predominantly whitish, or pale ochreous, or cream, or grey, or pale grey; without a clear discal mark; transversely lined, or without transverse lines (lines clear in E. prunata, faint or lacking in E. populata).
Vein 10 of the forewings arising independently of 9; arising independently, anastomosing with 11 and 9 to form a double areole. Hindwings exhibiting a tubular vein 5. Vein 5 of the hindwings arising from about the middle of the transverse vein, or arising from below the middle of the transverse vein (?). Vein 8 of the hindwings approximated to or anastomosed with the upper margin of the cell to the middle or beyond. Hindwing veins 6 and 7 stalked.
Posterior tibiae of males 4-spurred.
Early stages. Larvae feeding on woody Dicots - Ribes, Salix, Betula, Calluna, Vaccinium; also Galium (E. populata).
British representation. 5 species; South-east England, Central-southern England, South-west England, English Midlands, Northern England, Southern Scotland, Northern Scotland, Wales, and Ireland. Living adults found July and August. E. mellinata (The Spinach), E. populata (The Northern Spinach), E. prunata (The Phoenix), E. pyraliata (The Barred Straw), , E. testata (The Chevron).
Illustrations. • 5 Eulithis spp., with Chloroclysta, Cidaria,Plemyria, Thera: Newman (1869). • E. prunata (Phoenix) and E. populata (Northern Spinach), with other Larentiinae (‘Carpets’): Kirby 50.
To view the illustrations with detailed captions, go to the interactive key. This also offers full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting or lacking specified attributes, and distributions of character states within any set of taxa.
Cite this publication as: ‘Watson, L., and Dallwitz, M.J. 2003 onwards. Insects of Britain and Ireland: the genera of Lepidoptera-Geometridae. Version: 8th June 2016. delta-intkey.com’.