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

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L. Watson and M. J. Dallwitz

Hydriomena Hübner

Hypsipetes, Ypsipetes.

Adults. Antennae of males simple. Face rough.

Forewings relatively broad. The outer margin of the forewing slightly sigmoid-curved, or convexly curved. Forewings not predominantly green, yellow, or black; dull olive-green or pale grey to brownish; predominantly green to greenish, or light brown, or brown, or pale fuscous, or pale grey; with a clear discal mark (this dark), or without a clear discal mark; with a distinct median band to without a median band (the band usually undistinguished, and more often conspicuously lighter than darker). The outer margin of the hindwings smooth. Hindwings plain; fuscous; predominantly pale fuscous, or fuscous; with a clear discal mark (this dark), or without a clear discal mark; transversely lined (with one or two detectable darker lines), or 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 foliage of Salix, Alnus, Crataegus, Calluna.

British representation. 3 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, or July and August. H. furcata (July Highflier), H. impluviata (May High-flier), H. ruberata (Ruddy Highflier).

Subfamily. Larentiinae.

Illustrations. • Hydriomena spp. (Highfliers), with Coenocalpe, Colostygia, Electrophaes, Eustroma, Horisme, Melanthia: Newman 1869. • Larentiinae (‘Carpets’, ‘Pugs’, etc.): Kirby 51.

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.’.