Insects of Britain and Ireland: the genera of Lepidoptera-Noctuidae
Demas Stephens, Leptostola Billberg.
Adults. Eyes hairy; not ciliated. Antennae of males bipectinate (to the apex). Tongue poorly developed. Labial palps medium; porrect.
Wingspan 30–38 mm. Forewings grey; complexly patterned; the patterning well marked (at least in the conspicuously darkened darkened basal half); reniform defined (faint), or undefined; orbicular defined (conspicuous); claviform defined. Hindwings fuscous; plain to terminally darkened; with a clear discal mark, or without a clear discal mark; transversely lined (scarcely), or without transverse lines; exhibiting vein 5. Vein 5 of the hindwings strong; arising nearer to vein 4 than to vein 6; convergent on vein 4 near their bases. Thorax not crested. Middle tibiae without spines. Posterior tibiae with spines. Abdomen crested.
Living adults found May, June, August, and September (double brooded).
Larvae, pupae. Larvae conspicuously hairy (with pencils and tufts); feeding on deciduous trees and shrubs; pupating on vegetative parts of the foodplant (in a folded leaf).
British representation. 1 species; South-east England, Central-southern England, South-west England, English Midlands, Northern England, Southern Scotland, Northern Scotland, Wales, and Ireland; coryli (Nut-tree Tussock).
Illustrations. • Pantheinae (Colocasia coryli (Nut-tree Tussock): Kirby. • C. coryli (Nut-tree Tussock), with other Pantheinae: Swain.
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’.