Psilosticha mactaria (Guenée, 1857)
(one synonym : Boarmia atycta Turner, 1926)
Large Waved Bark Moth
BOARMIINI,   ENNOMINAE,   GEOMETRIDAE,   GEOMETROIDEA
 
Don Herbison-Evans
(donherbisonevans@outlook.com)
and
Cathy Byrne & Stella Crossley


(Photo: copyright Cathy Byrne)

These Caterpillars are blotchy green or brown, with two pale vertical lines on the head. The caterpillar is a true looper, with only two pairs of prolegs.


(Photo courtesy of Michael Bedingfield, Conder, Australian Capital Territory)

The adult moths have grey-brown wings with a complex wavy pattern. The wings have scalloped edges. The moths normally rest with wings flat and all four wings exposed. Both sexes have thread-like antennae. The wingspan is about 4 cms.


(Photo: copyright Cathy Byrne)

The eggs are ellipsoidal and are covered in an embossed microscopic hexagonal mesh pattern. Initially they are white, becoming dark as hatching approaches.


eggs, magnified
(Photo: copyright Cathy Byrne)

The species occurs in south-east Australia, including:

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


    showing underside
    (Photo courtesy of Michael Bedingfield, Conder, Australian Capital Territory)


    Further reading :

    Achille Guenée,
    Uranides et Phalénites,
    in Boisduval & Guenée:
    Histoire naturelle des insectes; spécies général des lépidoptères,
    Volume 9, Part 9 (1857), p. 270, No. 422.

    Marilyn Hewish,
    Moths of Victoria: Part 7,
    Bark Moths and Allies - GEOMETROIDEA (D)
    ,
    Entomological Society of Victoria, 2016, pp. 2, 24-25.

    Peter B. McQuillan,
    Report on a survey of nocturnal moth species occurring on South Sister near St Marys, Tasmania.,
    University of Tasmania, 2005.


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    (updated 17 September 2011, 24 September 2013, 22 December 2017)