Gauna aegusalis (Walker, 1858)
(erroneously : Pyralis aegalis)
PYRALINAE ,   PYRALIDAE ,   PYRALOIDEA
 
Don Herbison-Evans
(donherbisonevans@outlook.com)
and
Stella Crossley

Gauna aegusalis
(Photo: courtesy of Kaye Proudley, Victoria)

These Caterpillars have been found feeding and living inside :

  • galls caused by a rust fungus Uromycladium tepperianum ( UREDINALES )

    on

  • Silver Wattle ( Acacia dealbata, MIMOSACEAE ) and
  • Green Wattle ( Acacia decurrens, MIMOSACEAE ).

    Gauna aegusalis
    (Photo: courtesy of Ken Harris, Morwell National Park, Victoria)

    The moth has forewings with grey and brown areas delineated by broken white lines. In its normal posture, it holds the abdomen curved up in the air. The wingspan is about 3 cms.

    The species has been found in

  • New Zealand,

    and south-eastern Australia, including::

  • New South Wales,
  • Australian Capital Territory,
  • Victoria,
  • Tasmania, and
  • South Australia.

    Gauna aegusalis
    showing underside
    (Photo: courtesy of Kaye Proudley, Victoria)


    Further reading :

    Richard Bashford,
    The insect fauna inhabiting Uromycladium (Uredinales) rust galls on Silver Wattle (Acacia dealbata) in Tasmania,
    The Australian Entomologist,
    Volume 29, Part 3 (September 2002), pp. 81-95.

    Ian F.B. Common,
    Moths of Australia,
    Melbourne University Press, 1990, fig. 32.1, p. 349.

    Francis Walker,
    Pyralides,
    List of the Specimens of Lepidopterous Insects in the Collection of the British Museum,
    Part 19 (1859), pp. 912-913.


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    (updated 23 July 2013, 18 June 2015)