| | 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 very long; porrect.
Wingspan 15–21 mm. Forewings light brown; patterned transversely; the patterning well marked to obscure (rather plain to conspicuously transversely dark-lined and or light-banded); reniform defined to undefined; orbicular defined to undefined; claviform undefined (the stigmata missing or reduced to small, dark dots). Hindwings light grey, or whitish, or whitish-fuscous to fuscous; plain; without a clear discal mark; without transverse lines; 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. Posterior tibiae with spines; with appressed scales. Abdomen (small-) crested.
Living adults found June to September.
Larvae, pupae. Larvae feeding on Thymus, and cannibalistic?.
British representation. 2 species; South-east England, Central-southern England, South-west England, English Midlands, Northern England, and Wales; costaestrigalis (Pinion-streaked Snout), taenialis (White-line Snout). S. intermedialis (Autumnal Snout) may be a very uncommon hybrid between the other two.
Strepsimaninae.
Illustrations. • S. taenialis (White-line Snout) and S. costaestrigalis (Pinion-streaked Snout), 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. • S. taenialis (White-line Snout) and S. costaestrigalis (Pinion-streaked Snout), with other Hypeninae: Swain. 1(a) and (b), Hypena crassalis (Beautiful Snout); 2, Hypena proboscidalis (The Snout); 3, Hypena obsetalis (Bloxworth Snout); 4, Hypena obesalis (Paignton Snout); 5(a) and (b), Hypena rostralis (Buttoned Snout); 6(a) and (b), SCHRANKIA taenialis (White-line Snout); 7, Hypenodes humidalis (Marsh Oblique-barred); 8(a) and (b), SCHRANKIA costaestrigalis (Pinion-streaked Snout). Swain, 1961.
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’.
