Insects of Britain and Ireland: the genera of Lepidoptera-Noctuidae
Adults. Head rough. Eyes hairy; not ciliated. Antennae of males ciliate.
Wingspan 34–38 mm. Head and thorax coloured like the forewings, the abdomen paler like the hindwings. Forewings dark grey to blackish fuscous; complexly patterned; the patterning well marked; reniform defined; orbicular defined; claviform defined. Hindwings whitish-fuscous, or grey; plain to terminally darkened; with a clear discal mark, or 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 (front and back). Posterior tibiae without spines (?). Abdomen crested.
Living adults found June and July.
Larvae, pupae. Larvae posteriorly rounded; feeding on (especially) Chenopodiaceae and Polygonaceae.
British representation. 1 species; South-east England, Central-southern England, South-west England, English Midlands, Northern England, Southern Scotland, Northern Scotland, Wales, and Ireland; trifolii (The Nutmeg).
Illustrations. • Hadeninae: D. trifolii (The Nutmeg), and related genera: Newman. • D. trifolii, with Hadeninae and Cuculliinae: 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. delta-intkey.com’.