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

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L. Watson and M. J. Dallwitz

Nonagria Ochsenheimer

Adults. Head with a projecting, quadrangular horny frontal plate (concealed in dense scales). Eyes glabrous; not ciliated. Antennae of males ciliate. Tongue poorly developed.

Wingspan 40–54 mm. Thorax coloured like the forewings. Forewings pale ochreous or ‘wainscot brown’, occasionally darker umber-brown; almost plain, or patterned transversely (inner lines represented by a few dark dots, and a submarginal line of short dashes); the patterning well marked to obscure; reniform undefined; orbicular undefined; claviform undefined. Hindwings pearly whitish and fuscous, or grey; terminally darkened; 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 somewhat, anteriorly crested. Middle tibiae without spines. Posterior tibiae without spines. Abdomen not crested.

Living adults found in September.

Larvae, pupae. Larvae feeding on Typha, inside the stems; pupating within the stems of the foodplant.

British representation. 1 species; South-east England, Central-southern England, South-west England, English Midlands, Northern England, and Ireland; typhae (The Bulrush, Bulrush Wainscot).


Illustrations. • N. typhae (The Bullrush), and 6 related genera: Newman. • Amphipyrinae: Kirby.

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.’.