Casbia melanops Rosenstock, 1885
(one synonym : Deilinia eccentritis Meyrick, 1892)
Pomaderris Moth
CABERINI ,   ENNOMINAE ,   GEOMETRIDAE ,   GEOMETROIDEA
 
Don Herbison-Evans
(donherbisonevans@outlook.com)
and
Mike & Pat Coupar
and
Cathy Young & Stella Crossley


early instar, magnified
(Photo: copyright Cathy Young)

The Caterpillars of this species are initially pale brown with black dots and a yellow head.


later instar
(Photo from: "Flying Colours", Coupar & Coupar, 1992)

Later, they become mottled with green and brown, with black dots. They feed on the foliage of :

  • Hazel Pomaderris ( Pomaderris aspera, RHAMNACEAE ).


    final instar
    (Photo: copyright Cathy Young)

    They are loopers with only two pairs of prolegs. The Caterpillars grow to a length of about 2 cms.


    pupa
    (Photo: copyright Cathy Young)

    Pupation occurs in a loosely woven silk cocoon between leaves of the foodplant.


    female
    (Photo: copyright Cathy Young)

    The adult moth is brown with blurred dark patches, and sparse subterminal arcs of black dots. At rest the wings are held flat. They have a span of about 3 cms. The males have well-developed feathered antennae.


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

    The eggs are off-white and ellipsoidal. They are covered in fine ridges.


    eggs, magnified
    (Photo: copyright Cathy Young)

    The species may be found in

  • Queensland,
  • New South Wales,
  • Victoria,
  • Tasmania, and
  • South Australia.


    Further reading :

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

    Marilyn Hewish,
    Moths of Victoria: Part 7,
    Bark Moths and Allies - GEOMETROIDEA (D)
    ,
    Entomological Society of Victoria, 2016, pp. 6-7, 12-13.

    Rudolph Rosenstock,
    Notes on Australian Lepidoptera, with descriptions of new species,
    Annals and Magazine of Natural History,
    Volume 5, Part 16 (1885), pp. 431-432, No. 617, and also Plate 11, fig. 10.


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    (updated 16 February 2010, 1 January 2017)