drawing by Frederic Moore, The Lepidoptera of Ceylon,
L. Reeve, London, Volume 3 (1886), Plate 144, fig. 2c,
image courtesy of Biodiversity Heritage Library, digitized by Smithsonian Libraries.

The cocoon is dark purple, and is smoothly attached to a stem.

(Photo: courtesy of Buck Richardson, Kuranda, Queensland)

The adult moth of this species is greyish-brown with a dark subterminal line and a number of dark marks toward the tip of each forewing. The hindwings are buff coloured with broad dark margins. The males have a wingspan of about 2.5 cms. The females have a wingspan of about 3 cms.

male, drawing by Frederic Moore, The Lepidoptera of Ceylon,
L. Reeve, London, Volume 3 (1886), Plate 144, fig. 2,
image courtesy of Biodiversity Heritage Library, digitized by Smithsonian Libraries.

The species has been found across south-east Asia, including

and Australia in

male, drawing by George Francis Hampson, listed as Risoba grisea,
Catalogue of Lepidoptera Phalænæ in the British Museum,
Volume XI, 1912, Plate CLXXXVI, figure 5,
Image courtesy of Biodiversity Heritage Library, digitized by Ernst Mayr Library, Harvard University.

Further reading :

Frederic Moore,
Descriptions of new genera and species of Asiatic nocturnal Lepidoptera,
Proceedings of the Zoological Society of London,
1881, pp. 328-329.

Frederic Moore,
The Lepidoptera of Ceylon,
L. Reeve, London, Volume 3 (1886), p. 2, and also Plate 144, fig. 2.

Buck Richardson,
Tropical Queensland Wildlife from Dusk to Dawn Science and Art,
LeapFrogOz, Kuranda, 2015, p. 172, listed as Risoba grisea.

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(updated 29 October 2011, 1 May 2016, 15 August 2019)