Insects of Britain and Ireland: the genera of Lepidoptera-Noctuidae

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L. Watson and M. J. Dallwitz

Phytometra Haworth

Prothymnia Hübner.

Adults. Head loosely scaled. Eyes glabrous; not ciliated. Antennae of males ciliate. Labial palps medium; ascending.

Wingspan 19–20 mm. Head, thorax and abdomen the same colour as the hindwings. Forewings dark fuscous and purple; purplish marked or tinged; patterned transversely; the patterning well marked (with purple central and marginal bands, on the dark fuscous background); reniform undefined; orbicular undefined; claviform undefined. Hindwings fuscous and grey (dark fuscous mixed with ochreous grey); terminally darkened; without a clear discal mark; transversely lined to 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 slightly crested (posteriorly). Middle tibiae without spines. Posterior tibiae with spines; with appressed scales. Abdomen not crested.

Living adults found May to July.

Larvae, pupae. Larvae feeding on Polygala, Pedicularis; pupating on vegetative parts of the foodplant.

British representation. 1 species; South-east England, Central-southern England, South-west England, English Midlands, Northern England, Southern Scotland, Northern Scotland, Wales, and Ireland; viridaria (The Small Purple Barred).


Illustrations. • P. viridaria (Small Purple-barred), with other Ophiderinae: Newman. • British Ophiderinae: 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.’.