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

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L. Watson and M. J. Dallwitz

Acosmetia Stephens

Adults. Head smooth. Eyes glabrous; not ciliated. Antennae of males ciliate. Labial palps medium to long; porrect to ascending (curved, the second segment scaly and the third naked and filiform).

Wingspan 24–30 mm. Head, thorax and the (for a noctuid) unusually slender abdomen grey-brown. Forewings grey-brown; fuscous; patterned transversely (transversely 3-lined, and with a line of dots between the two outer continuous lines); the patterning well marked; reniform defined (represented as a cloudy spot), or undefined; orbicular undefined; claviform undefined. Hindwings whitish, or fuscous; plain to terminally darkened; with a clear discal mark to without a clear discal mark; without transverse lines; exhibiting vein 5. Vein 5 of the hindwings weak; arising nearer to vein 6 than to vein 4. Thorax not crested. Middle tibiae without spines. Posterior tibiae without spines; with appressed scales. Abdomen not crested.

Living adults found June and July.

Larvae, pupae. Larvae feeding on Rumex, Serratula tinctoria, Poterium sanguisorba, etc.

British representation. 1 species; Central-southern England and South-west England; A. caliginosa (The Reddish Buff).


Illustrations. • A. caliginosa (The Reddish Buff), and 14 related genera: Newman.

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.’.