Psilosticha pristis (Meyrick, 1892)
Little Brown Bark Moth
 (previously known as Ectropis pristis)
BOARMIINI,   ENNOMINAE,   GEOMETRIDAE,   GEOMETROIDEA
 
Don Herbison-Evans
(donherbisonevans@yahoo.com)
and
Stella Crossley

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

The adult moths have pale fawn wings with some dark spots, and a vague pattern of dark and light lines. The wings have scalloped margins with a marginal dark line around each wing. The moths normally rest with wings flat with all four wings exposed. The wingspan is about 2 cms.

Psilosticha pristis
(Photo: courtesy of CSIRO/BIO Photography Group, Centre for Biodiversity Genomics, University of Guelph)

The species occurs in eastern Australia in:

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

    Psilosticha pristis
    underside
    (Photo: courtesy of John Bromilow, Ainslie, Australian Capital Territory)

    Further reading :

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

    Edward Meyrick,
    Revision of Australian Lepidoptera V,
    Proceedings of the Linnean Society of New South Wales,
    Series 2, Volume 6, Part 4 (1892), p. 626, No. 48.

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    (written 21 February 2018, updated 15 July 2018, 19 February 2019, 26 November 2020)