Insects of Britain and Ireland: the genera of Lepidoptera-Noctuidae
Adults. Head with a projecting, triangular horny frontal plate (concealed in dense scales). Eyes glabrous; not ciliated. Antennae of males ciliate.
Wingspan 32–42 mm. Thorax ochreous-orange-yellow and purplish brown, the abdomen paler and coloured like the hindwings. Forewings orange-ochreous-yellow; complexly patterned; the patterning well marked (colour limits sharply defined, with purplish-brown bands, streaks and stigmatal outlines); reniform defined; orbicular defined; claviform defined (D-shaped). Hindwings white to whitish, or fuscous, or ochreous; plain to terminally darkened (with an indistinct sub-marginal band); with a clear discal mark to without a clear discal mark; indistinctly transversely lined; exhibiting vein 5. Vein 5 of the hindwings weak; arising nearer to vein 6 than to vein 4. Thorax crested (anteriorly and posteriorly). Middle tibiae without spines. Posterior tibiae without spines; rough-scaled.
Living adults found August and September.
Larvae, pupae. Larvae posteriorly rounded; feeding on Arctium, Cirsium, Eupatorium, Verbascum, Digitalis, Sambucus, etc., within the stems; pupating within the stems of the foodplant (generally near the ground).
British representation. 2 species; South-east England, Central-southern England, South-west England, English Midlands, Northern England, Southern Scotland, Northern Scotland, Wales, and Ireland (local); flavago (Frosted Orange), borelii lunata (Fishers Estuarine Moth.
Illustrations. • G. flavago (The Frosted Orange), and 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. delta-intkey.com’.