Epidesmia chilonaria (Herrich-Schaffer, [1855])
(one synonym is: Hemagalma aurina)
OENOCHROMINAE ,   GEOMETRIDAE ,   GEOMETROIDEA
  
Don Herbison-Evans
( donherbisonevans@outlook.com)
and
Stella Crossley
and
Mike & Pat Coupar

Epidesmia chilonaria
(Photo from: "Flying Colours", Coupar & Coupar, 1992)

The Caterpillars of this species feed on the foliage of plants in MYRTACEAE, including:

  • various species of Gum Trees ( Eucalyptus ), and
  • Bottlebrush ( Callistemon ).

    They are brown with two white spots on each segment. They are loopers with only two pairs of prolegs. They grow to a length of about 4 cms.

    The Caterpillars pupate in a loose cocoon in the debris on the soil surface.

    Epidesmia chilonaria
    (Specimen: courtesy of the Macleay Museum, University of Sydney)

    The adult moth has brown forewings with a line across them, and yellow hindwings. Each wing has a dark dot in the middle of it. In its natural posture, the forewings are held like a triangle, and cover the bright hindwings. The lines on each forewing are aligned to look like the midvein of a leaf. The wingspan can reach up to 4 cms.

    Epidesmia chilonaria
    (Photo: courtesy of Ken Harris, Morwell Park, Victoria)

    The species may be found in the south-eastern quarter of Australia, including

  • Victoria, and
  • New South Wales.


    Further reading :

    Pat and Mike Coupar,
    Flying Colours, New South Wales University Press, Sydney 1992, p. 45.

    Peter Marriott,
    Moths of Victoria: Part 4
    Emeralds and Allies - GEOMETROIDEA (B)
    ,
    Entomological Society of Victoria, 2012, pp. 14-15, 18-19.


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    (updated 20 June 2013)