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

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L. Watson and M. J. Dallwitz

Rusina Stephens

Adults. Head rough. Eyes glabrous; not ciliated. Antennae of males bipectinate (to the apex). Labial palps ascending.

Wingspan 32–40 mm. Thorax coloured umber brown, the abdomen like the hindwings. Forewings rich brown or grey-brown; neither purplish nor rosy marked or tinged; patterned transversely; the patterning well marked to obscure (with clear to indistinct, dark first and second lines, and fairly indistinct median and subterminal darker bands); reniform defined; orbicular defined; claviform undefined. Hindwings quite dark fuscous; plain; with a clear discal mark to without a clear discal mark; without transverse lines; exhibiting vein 5. Vein 5 of the hindwings weak; arising nearer to vein 6 than to vein 4. Thorax crested (anteriorly and posteriorly). The males not fan-footed. Middle tibiae without spines. Posterior tibiae without spines. Abdomen not crested.

Living adults found June and July.

Larvae, pupae. Larvae feeding on grasses and herbaceous Dicots, especially Viola; pupating on the surface of the ground, or 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; ferruginea (Brown Rustic).


Illustrations. • R. ferruginea (Brown Rustic), and 8 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.’.