Synemon nupta Westwood, 1877 Bridal Sun Moth CASTNIIDAE,   SESIOIDEA

Don Herbison-Evans (donherbisonevans@yahoo.com) and Stella Crossley

(Photo: courtesy of CSIRO/BIO Photography Group, Centre for Biodiversity Genomics, University of Guelph)

The adult moth of this species has grey-brown forewings each with some pale markings, and a submarginal arc of dark chevrons. The hindwings are dark brown, each with a large orange triangle at the base, a submarginal arc of three large orange spots, and sometimes a blue band along the costa. The wingspan is about 4 cms.

listed as Synemon nupta,
drawing by John O. Westwood, lithographed by P.C. Berjeau, printed by Hanhart,
A monograph of the Lepidopterous genus Castnia and some allied groups,
Transactions of the Linnean Society of London, 2nd Series (Zoology),
Volume 1 (1877), Plate XXXIII, fig. 7,
image courtesy of Biodiversity Heritage Library, digitized by Ernst Mayr Library, Harvard University.

The species has been found in

Western Australia.

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Further reading :

John O. Westwood,
A monograph of the Lepidopterous genus Castnia and some allied groups,
Transactions of the Linnean Society of London, 2nd Series (Zoology),
Volume 1 (1877), p. 197, and also Plate 33, fig. 7.

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(written 24 August 2018, updated 29 September 2026)