Insects of Britain and Ireland: the genera of Lepidoptera-Geometridae
Adults. Antennae of males dentate to simple (stout, flatly sub-dentate); shortly, evenly simply-ciliate.
Wingspan 26–30 mm. The outer margin of the forewing convexly curved. Forewings white, with dark fuscous and/or grey markings; predominantly white; with a clear discal mark to without a clear discal mark (the spot black to indistinct); without a median band. Forewings of the male without a fovea. Hindwings plain; white; with a clear discal mark, or without a clear discal mark; transversely lined (with no first line, and faint grey outer 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.
Early stages. Larvae feeding on rosaceous trees and shrubs.
British representation. 2 species; South-east England, Central-southern England, South-west England, English Midlands, Northern England, Southern Scotland, Northern Scotland, Wales, and Ireland. Living adults found May and June. L. bimaculata (White-pinion Spotted), L. temerata (Clouded Silver).
Illustrations. • L. bimaculata (White Pinion-spotted) and L. temerata (Clouded Silver), with Aleucis, Cabera, Campaea, Gnophos, Hylaea and Theria: Newman 1869. • L. bimaculata and L. temerata, 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’.