Insects of Britain and Ireland: the genera of Lepidoptera-Noctuidae
Adults. Head loosely scaled. Head with a frontal tuft. Eyes glabrous; not ciliated. Antennae of males ciliate. Labial palps long; ascending.
Wingspan 25–30 mm. Thorax and abdomen coloured like the wings. Forewings ochreous-brown; patterned transversely; the patterning well marked (with dark brown first and second lines, and a less well defined sub-marginal line); patterned darker; reniform defined to undefined; orbicular undefined; claviform undefined. Hindwings brownish and ochreous (irrorated brown - like the forewings); conspicuously patterned; with a clear discal mark to without a clear discal mark; transversely lined; exhibiting vein 5. Vein 5 of the hindwings strong; arising nearer to vein 4 than to vein 6; parallel with vein 4. Thorax not crested. The males conspicuously fan-footed, via a long, expansible hair-pencil on each anterior tibia. Posterior tibiae with spines; with appressed scales. Abdomen not crested.
Living adults found July and August.
Larvae, pupae. Larvae feeding on dead oak leaves, on the ground.
British representation. 1 species; South-east England (local); tristalis (Clay Fan-foot).
Illustrations. • P. tristalis (Clay Fan-foot), with Herminiinae, Hypeninae and Rivulinae: Leech, 1886. • British Hypeninae (1: Fan-foot Moths). • Paracolax tristalis (Clay Fan-foot): Stephens IV, 1834).
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’.