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

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L. Watson and M. J. Dallwitz

Rhyacia Hübner

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

Wingspan 41–46 mm. Forewings greyish brown; neither purplish nor rosy marked or tinged; complexly patterned (complexly patterned); the patterning well marked to obscure; reniform defined; orbicular defined. Hindwings fuscous; plain; with a clear discal mark; without transverse lines; 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 in July.

Larvae, pupae. Larvae feeding on Dicot weeds and grasses.

British representation. 2 species (one adventive); South-east England, Central-southern England, South-west England, English Midlands, Northern England, Southern Scotland, Northern Scotland, Wales, and Ireland; lucipeta*, simulans (Dotted Rustic).


Illustrations. • Noctuinae: R. simulans (Dotted Rustic), 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.’.