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

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L. Watson and M. J. Dallwitz

Plagodis Hübner

Anagoga, Anagoge, Azinephora, Eurymene, Numeria.

Adults. Antennae of males bipectinate; apically simple.

Wingspan 32–38 mm. Forewings relatively narrow-elongate to relatively broad. The outer margin of the forewing convexly curved, or angulated (dolabraria). Forewings brownish ochreous to reddish fuscous, with a darker median band, or (P. dolabraria) ochreous, strigulated greyish with dark reddish or purplish ‘scorch marks’ at the base of the costa, tornally, and near the outer edge of the hind margin; without a clear discal mark; with a distinct median band (usually, the band of varying degrees of darkness), or without a median band. Forewings of the male without a fovea. The outer margin of the hindwings somewhat angled (dolabraria), or rounded. Hindwings conspicuously patterned; coloured like the forewings, but the dark banding of P. pulveraria and the ‘scorch marks’ of P. dolabraria confined to the inner tornal region; predominantly ochreous, or brown, or fuscous; without a clear discal mark; transversely lined (P. pulveraria with a clear but incomplete second line, and the hindwing ‘scorch-marks’ of P. dolabraria representing two incomplete 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.

Thorax smooth. Posterior tibiae of males 4-spurred.

Early stages. Larvae feeding on diverse deciduous trees.

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. P. dolabraria (The Scorched-wing), P. pulveraria (Barred Umber).

Subfamily. Ennominae.

Illustrations. • P. pulveraria (Barred Umber) and P. dolabraria (Scorched Wing), with Cepphis, Epione, Isturgia, Opisthograptis, Pachycnemia, Petrophora, and Pseudopanthera: Newman. • 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.’.