Idaea pseliota (Meyrick, 1888)
Doily wave
(previously known as Acidalia pseliota)
STERRHINAE,   GEOMETRIDAE,   GEOMETROIDEA
 
Don Herbison-Evans
(donherbisonevans@outlook.com)
and
Stella Crossley

Idaea pseliota
(Photo: courtesy of Steve Williams, Moths of Victoria: Part 3)

The Caterpillars of this species are brown loopers, with two pairs of prolegs missing. The caterpillars sometimes pose in a curled position, and sometimes erect at an angle to their supporting surface.

Idaea pseliota
(Photo: courtesy of Steve Williams, Moths of Victoria: Part 3)

The caterpillars are thought to feed on the foliage of

  • Gum Trees ( Eucalyptus species, MYRTACEAE ).

    Idaea pseliota
    (Photo: courtesy of Steve Williams, Moths of Victoria: Part 3)

    The pupa initially is green with a brown abdomen, but later becomes wholly brown.

    Idaea pseliota
    (Photo: courtesy of Jenny Holmes, Great Western, Victoria)

    The adult moths of this species are pale brown, with two dark brown wiggly lines on each forewing, and one on each hindwing. All the wings have a submarginal array of brown spots. The wingspan is about 2 cms.

    Idaea pseliota
    eggs, magnified
    (Photo: courtesy of Steve Williams, Moths of Victoria: Part 3)

    The eggs are oval and minutely pitted. The eggs are initially white but later develop pink spots as they mature.

    The species has been found in :

  • Northern Territory,
  • Queensland,
  • New South Wales, and
  • Victoria.


    Further reading:

    Peter Marriott,
    Moths of Victoria: Part 3,
    Waves & Carpets - GEOMETROIDEA (C)
    ,
    Entomological Society of Victoria, 2011, pp. 10-11.

    Edward Meyrick,
    Revision of Australian Lepidoptera II,
    Proceedings of the Linnean Society of New South Wales,
    Series 2, Volume 2, Part 4 (1888), p. 848, No. 12.


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    (updated 14 July 2010, 17 September 2013)