Insects of Britain and Ireland: the genera of Lepidoptera-Geometridae

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L. Watson and M. J. Dallwitz

Lithostege Hübner

Adults. Antennae of males simple; simply-ciliate.

Wingspan 29–33 mm. Forewings pale whitish grey, with a faintly darker subterminal transverse shade running to the apex; predominantly whitish, or pale grey; without a clear discal mark. Hindwings plain; pale whitish grey; predominantly whitish, or pale grey; without a clear discal mark; 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 Cruciferae.

British representation. 1 species; South-west England. Living adults found June and July. L. griseata (The Grey Carpet, The Snowy).

Subfamily. Larentiinae.

General comments. Front tibiae with a horny apical hook.

Illustrations. • L. griseata (Grey Carpet), with Acasis, Aploce, Lithostege, Lobophora, Minoa, Odezia, Pterapherapteryx, Trichopteryx: Newman 1869. • L. griseata and L. farinata, with other Larentiinae: Kirby 49.

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.’.