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

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L. Watson and M. J. Dallwitz

Peridroma Hübner

Adults. Head rough. Face without any conspicuous prominence. Eyes glabrous; not ciliated. Antennae of males ciliate.

Wingspan 42–52 mm. Thorax coloured like the forewings, the abdomen like the hindwings. Forewings greyish darkish brown; complexly patterned; the patterning fairly well marked to obscure; reniform defined; orbicular defined; claviform defined. Hindwings whitish, or whitish brownish; narrowly terminally darkened (with conspicuously dark nerves); without a clear discal mark; transversely lined; exhibiting vein 5. Vein 5 of the hindwings strong (distally); arising nearer to vein 6 than to vein 4. Thorax crested (front and rear). Middle tibiae with spines. Posterior tibiae with spines. Abdomen not crested.

Living adults found May and June, or August to October (double brooded).

Larvae, pupae. Larvae posteriorly rounded; feeding on low-growing Dicots, e.g. Trifolium, Rumex; pupating in the soil.

British representation. 1 species; South-east England, Central-southern England, South-west England, English Midlands, Northern England, Southern Scotland, Northern Scotland, Wales, and Ireland; saucia (Pearly Underwing).


Illustrations. • Noctuinae: P. saucia (Pearly Underwing) and related genera: Newman.

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-Noctuidae. Version: 8th June 2016.’.