Insects of Britain and Ireland: the genera of Lepidoptera-Geometridae
Eubolia, Eusebia, Onychia, Ortholitha, Phasiane.
Adults. Antennae of males bipectinate. Face rough.
Wingspan 32–40 mm. The outer margin of the forewing convexly curved, or sigmoid-curved. Forewings not predominantly green, yellow, or black; whitish grey, pale grey, pale fuscous, ochreous or brownish; with a clear discal mark (this black, or sometimes two, transversely placed); with a distinct median band (this dark), or without a median band. Hindwings plain; fuscous or grey; with a clear discal mark, or without a clear discal mark; transversely lined (with darker postmedian striae).
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 mainly shrubby and herbaceous legumes, but also Ericaceae.
British representation. 6 species (2 adventive); South-east England, Central-southern England, South-west England, English Midlands, Northern England, Southern Scotland, Northern Scotland, Wales, and Ireland. Living adults found June to August (sometimes double brooded). S. bipunctaria (Chalk Carpet), S. chenopodiata (Small Mallow, Shaded Broad-bar, and in former times The Aurelians Plague), S. luridata plumbaria (The July Belle), S. mucronata (The Lead Belle), S. moeniata (Fortified Carpet, based on doubtful old records), S. peribolata (Spanish Carpet, a sporadic migrant?).
Illustrations. • S. bipunctaria (Chalk Carpet), S. chenopodiata (Shaded Broad-bar), S, luridata (Lead Belle), and S. moeniata (Fortified Carpet): Newman 1869. • Larentiinae: Kirby.
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’.