Selidosema thermaea Meyrick, 1892
(erroneously known as Selidosema thermea)
(one synonym Geometra camelipilo Scott, 1893)
Clouded Bark Moth
BOARMIINI,   ENNOMINAE,   GEOMETRIDAE,   GEOMETROIDEA
 
Don Herbison-Evans
(donherbisonevans@outlook.com)
and
Stella Crossley


drawing by Harriet Morgan and Helena Forde, listed as Geometra camelipilo
,
Australian Lepidoptera and their transformations, Plate XXI: top left,
courtesy of the Australian Museum

This Caterpillar is reddish-grey with a pale underside. The caterpillar is smooth, and has an angular head and a blunt horn on the last segment. The caterpillar has only one pair of prolegs on the penultimate abdominal segment, and claspers on the last segment, so walks in a looper fashion. The caterpillar has been found feeding on

  • Early Green Wattle, ( Acacia decurrens, MIMOSACEAE )
  • Tuckeroo, ( Cupaniopsis anacardioides, SAPINDACEAE )


    pupa, drawing by Harriet Morgan and Helena Forde, listed as Geometra camelipilo
    ,
    Australian Lepidoptera and their transformations, Plate XXI: top left: figure 1,
    courtesy of the Australian Museum

    The pupa is brown.


    female
    (Photo: courtesy of Marilyn Hewish, Moths of Victoria: Part 7)

    This adult moth is blotchy brown, often with black, brown, and white wiggly lines and spots on each wing. The undersides are plain brown with one dark spot near the middle of each wing. Both sexes have feathery antennae. The wingspan is about 4 cms.

    The species has been found in

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


    male, drawing by Harriet Morgan and Helena Forde, listed as Geometra camelipilo
    ,
    Australian Lepidoptera and their transformations, Plate XXI: top left,
    courtesy of the Australian Museum

    The genus Selidosema is actually inappropriate for this species and for Selidosema agoraea, and they should both be placed in a new as yet undescribed genus.


    Further reading :

    Marilyn Hewish,
    Moths of Victoria: Part 7,
    Bark Moths and Allies - GEOMETROIDEA (D)
    ,
    Entomological Society of Victoria, 2016, pp. 22-23.

    Edward Meyrick,
    Revision of Australian Lepidoptera V,
    Proceedings of the Linnean Society of New South Wales,
    Series 2, Volume 6, Part 4 (1892), p. 600, No. 27.

    Alexander Walker Scott, edited and revised by Arthur Sidney Olliff and Helena Forde
    Australian Lepidoptera and their transformations, with illustrations drawn from the life by his daughters, Harriet Morgan and Helena Forde,
    Australian Museum,
    Vol. 2 (1893), p. 33 (61), and also Plate 21, top left.


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    (written 3 July 2018)