| | Insects of Britain and Ireland: the genera of Lepidoptera-Geometridae |
Adults. Antennae of males bipectinate; apically simple. Face smooth.
Wingspan 28–31 mm. The outer margin of the forewing slightly sigmoid-curved, or convexly curved. Forewings pale grey with dark striae; predominantly pale grey; without a clear discal mark; with a distinct median band to without a median band. Hindwings plain; pale grey to whitish; without a clear discal mark; transversely lined (with darker posterior lines).
Vein 10 of the forewings arising independently of 9; arising out of 11 and anastomosing with 9 to form a simple areole. Hindwings exhibiting a tubular vein 5. Vein 5 of the hindwings arising from about the middle of the transverse vein, or arising from below the middle of the transverse vein (?). Vein 8 of the hindwings approximated to or anastomosed with the upper margin of the cell to the middle or beyond. Hindwing veins 6 and 7 stalked.
Thorax glabrous beneath. Posterior tibiae of males 4-spurred.
Early stages. Larvae feeding on Sorbus aucuparia (Mountain Ash).
British representation. 1 species; South-west England, English Midlands, Northern England, and Ireland. Living adults found June and July. V. cambrica (Welsh Wave).
Subfamily. Larentiinae.
General comments. Thorax glabrous beneath.
Illustrations. • Venusia cambrica Curtis (Welsh Wave): B. Ent. 759. • Venusia cambrica Curtis: B. Ent. 759, legend+text. • Venusia cambrica Curtis: B. Ent. 759, text cont.. • Acasis, Aplocera, Asthena, Carsia, Chesias, Discoloxia, Euchoeca, Hydrelia, Lithostege, Lobophora, Minoa, Odezia, Pterapherapteryx, Trichopteryx: Newman 1869. 1, Chesias legatella (The Streak); 2, Chesias rufata rufata (The Broom-tip); 3a-b, Aplocera plagiata plagiata (The Treble-bar); 4a-c, Carsia sororiata anglica (Manchester Treble-bar); 5, Odezia atrata (The Chimney-sweeper); 6, Venusia cambrica (Welsh Wave); 7, Discoloxia blomeri (Blomer's Rivulet); 8, Lithostege griseata (Grey Carpet); 9, Hydrelia flammeolaria (Small Yellow Wave); 10, Hydrelia sylvata (Waved Carpet); 11, Asthena albulata (Small White Wave); 12, Euchoeca nebulata (Dingy Shell); 13, Minoa murinata (Drab Looper); 14a-b, Lobophora halterata (The Seraphim); 15, Trichopteryx polycommata (Barred Tooth-striped); 16, Trichopteryx carpinata (Early Tooth-striped); 17, Pterapherapteryx sexalata (Small Seraphim); 18, Acasis viretata (Yellow-barred Brindle). From Newman (1869).
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-Geometridae. Version: 14th February 2021. delta-intkey.com’.
