Insects of Britain and Ireland: the genera of Lepidoptera-Geometridae
Adults. Antennae of males simple; simply-ciliate.
Wingspan 24–30 mm. The outer margin of the forewing slightly sigmoid-curved, or convexly curved. Forewings not predominantly green, yellow, or black; brown-grey, with a ferrugineous band towards the termen; predominantly fuscous; with a clear discal mark (this grey), or without a clear discal mark; with a distinct median band (this dark, with a once-interrupted pale band within it). Hindwings plain; pale grey, rosy-tinged; without a clear discal mark; faintly transversely lined to without transverse lines.
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 Vaccinium.
British representation. 1 species; English Midlands, Northern England, Southern Scotland, Northern Scotland, and Wales (common). Living adults found in July. C. sororiata (Manchester Treble-bar).
Illustrations. • C. sororiata anglica (Manchester Treble-bar), with Acasis, Aplocera, Asthena, Chesias, Discoloxia, Euchoeca, Hydrelia, Lithostege, Lobophora, Minoa, Odezia, Pterapherapteryx, Trichopteryx: Newman 1869. • C. sororiata, with Aplocera and other Larentiinae: Kirby 49. • Larentiinae: Carsia sororiata (Manchester Treble-bar: B. Ent. 324). • Larentiinae: Carsia sororiata: B. Ent. 324, legend+text. • Larentiinae: Carsia sororiata: B. Ent. 324, text cont..
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’.