Orphanostigma angustale Hampson, 1893
 (one synonym : Syngamia xanthalis Hampson, 1898)
SPILOMELINAE,   CRAMBIDAE,   PYRALOIDEA
 
Don Herbison-Evans
(donherbisonevans@yahoo.com)
and
Stella Crossley

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

The adult moths of this species have forewings that are dark brown each with two large pale spots. The hindwings are translucent, each with a dark brown area at the wingtip. The wings of live specimens are iridescent. The wingspan is about 2 cms.

Orphanostigma angustale
drawing by George F. Hampson, listed as Ambia caeruleata,
Illustrations of typical specimens of Lepidoptera Heterocera in the British Museum,
The Macrolepidoptera Heterocera of Ceylon,
Part IX (1893), Plate CLXXII, fig. 20,
image courtesy of Biodiversity Heritage Library, digitized by Smithsonian Libraries.

The species has been found across Asia, including

  • India,
  • Papua,
  • Taiwan,

    and in Australia in:

  • Queensland.

    Further reading :

    George Francis Hampson,
    The Macrolepidoptera Heterocera of Ceylon,
    Illustrations of typical specimens of Lepidoptera Heterocera in the British Museum,
    Part 9 (1893), p. 173, and also Plate 172, fig. 20.

    Buck Richardson,
    Tropical Queensland Wildlife from Dusk to Dawn Science and Art,
    LeapFrogOz, Kuranda, 2015, p. 45.

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    (updated 19 March 2012, 6 November 2025)