Leptotroga costalis (Moore, 1883) (one synonym : Leptotroga armstrongi Tams, 1935) CALPINAE,   EREBIDAE,   NOCTUOIDEA

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

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

The adult moths of this species have brown forewings. each with a wide pale streak along the costa,a variable orange band across the middle of the wing, andd a sinuous pale submarginal line. The hindwings are brown, also each with a sinuous pale submarginal line. The forewings each have a hooked wingtip, and a cusp on the margin. The hindwings have scalloped margins. The wingspan is about 4 cms.

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

The species has been found in

Queensland.

drawing by Frederic Moore, listed as Achyra costalis,
Proceedings of the Zoological Society of London, Part 15, Volume 30 (1883), Plate VI. fig. 10,
image courtesy of Biodiversity Heritage Library, digitized by Natural History Museum Library, London.

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Further reading :

Frederic Moore,
Descriptions of new Genera and Species of Asiatic Lepidoptera Heterocera,
Proceedings of the Zoological Society of London,
Part 15, Volume 30 (1883), p. 28. and Plate 6, fig. 10.

Willie Horace Thomas "Tiger" Tams,
Lepidoptera: Heterocera (exclusive of Geometridae and the Microlepidoptera),
Insects of Samoa and other Samoan terrestrial arthropods,
Part III, Fasc. 4 (1935) p. 228, and also Plate 8, figs. 8,9.

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(written 29 April 2019)