| | 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).
Herminiinae.
Illustrations. • P. tristalis (Clay Fan-foot), with Herminiinae, Hypeninae and Rivulinae: Leech, 1886. NOCTUIDAE-RIVULINAE. 1. Colobochyla salicalis (Lesser Belle). 9, Rivula sericealis(Straw Dot). HYPENINAE. 2, Hypena proboscidalis (Snout); 3, Hypena rostralis (Buttoned Snout); 4, Hypena crassalis (Beautiful Snout. 4, Schrankia taenialis (White-line Snout); 6, Schrankia costaestrigalis (Pinion-streaked Snout). 7, Hypenodes humidalis (Marsh Oblique-barred). HERMINIINAE. 8, Trisateles emortualis (Olive Crescent). 10, Paracolax tristalis (Clay Fan-foot). 11, Pechipogo strigulata (Common Fan-foot). 12, Zanclognatha tarsipennalis (The Fan-foot). Leech, 1886. • British Hypeninae (1: Fan-foot Moths). 1(a) and (b), Zanclognatha tarsipennalis (The Fan-foot); 2(a) and (b), Herminia grisealis (Small Fan-foot); 3(a) and (b), Macrochilo cribrumalis (Dotted Fan-foot); 4, Paracolax tristalis (Clay Fan-foot); 5, Trisateles emortualis (Olive Crescent); 6(a) and (b), Pechipogo strigilata (Common Fan-foot). Swain, 1961. • Paracolax tristalis (Clay Fan-foot): Stephens IV, 1834).
We advise against extracting comparative information from the descriptions. This is much more easily achieved using the DELTA data files or the interactive key, which allows access to the character list, illustrations, 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. See also Guidelines for using data taken from Web publications.
Cite this publication as: ‘Watson, L., and Dallwitz, M.J. 2003 onwards. Insects of Britain and Ireland: the genera of Lepidoptera-Noctuidae. Version: 14th February 2021. delta-intkey.com’.
