Idaea halmaea (Meyrick, 1888)
Two-spotted Wave
 (previously known as Acidalia halmaea)
STERRHINAE,   GEOMETRIDAE,   GEOMETROIDEA
 
Don Herbison-Evans
(donherbisonevans@yahoo.com)
and
Stella Crossley

Idaea halmaea
pale variety
(Photo: courtesy of Katarina Christenson, Tidbinbilla, Australian Capital Territory)

The adult moths of this species are pale brown, with variable dark marks on the wings.

Idaea halmaea
female, dark variety
(Photo: courtesy of Peter Marriott, Moths of Victoria: Part 3)

The wingspan is about 2 cms.

Idaea halmaea
male, pale variety
(Photo: courtesy of Peter Marriott, Moths of Victoria: Part 3)

The species has been found in :

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

    Idaea halmaea
    underside
    (Photo: courtesy of Laura Levens, Upper Beaconsfield, Victoria)

    Further reading:

    Peter Marriott,
    Moths of Victoria: Part 3,
    Waves & Carpets - GEOMETROIDEA (C)    ,
    Entomological Society of Victoria, 2011, pp. 6-7, 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. 846.

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    (updated 25 May 2012, 9 June 2018, 23 November 2020, 19 March 2021)