Insects of Britain and Ireland: the genera of Lepidoptera-Noctuidae
Gymnopa Stephens, Heliodes Guenée.
Adults. Head rough (-haired). Eyes glabrous; not ciliated. Antennae of males simple (filiform). Labial palps short; porrect (and hairy).
Wingspan 18–22 mm. Forewings light and dark mahogany brown; patterned transversely; the patterning well marked (darkened basally, medianly and terminally); reniform undefined; orbicular undefined; claviform undefined. Hindwings yellow and blackish; conspicuously patterned (the broad black marginal band contrasting with the yellow base); 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 not crested (rough-haired). Middle tibiae without spines. Posterior tibiae without spines; rough-scaled. Abdomen not crested.
Living adults found May and June.
Larvae, pupae. Larvae feeding on flowers and fruits of Cerastium vulgatum; pupating in the soil.
British representation. 1 species; South-east England, Central-southern England, South-west England, English Midlands, Northern England, Wales, and Ireland; tenebrata (Small Yellow Underwing).
Illustrations. • P. tenebrata (Small Yellow Underwing), and 14 related genera: Newman. • Acontiinae, Amphipyrinae, Hadeninae and Heliothidinae: 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’.