Insects of Britain and Ireland: the genera of Lepidoptera-Geometridae
Adults. Antennae of males simple (stout); fasciculate-ciliate. Face smooth.
Wingspan 25–30 mm. The outer margin of the forewing convexly curved. Forewings white or creamish, with dark transverse lines, a dark basal patch and postmedian band, and ashy grey markings towards the termen; with a clear discal mark (this grey); with a distinct median band (interpreting the median white fascia as a band). Forewings of the male without a fovea. Hindwings plain; ochreous white, darker posteriorly; with a clear discal mark (this grey); transversely lined (with detectable, grey second and submarginal lines).
Hindwings lacking a tubular vein 5. 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 separate.
Posterior tibiae of males 4-spurred.
British representation. 1 species; South-east England, Central-southern England, South-west England, English Midlands, Northern England, Southern Scotland, Wales, and Ireland. Living adults found May to July. L. adustata (Scorched Carpet).
Illustrations. • L. adustata (Scorched carpet), with Abraxas, Lomaspilis and Semiothisa: Newman. • L. adustata, with other Sterrhinae: Kirby 45.
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’.