Dichromodes atrosignata (Walker, 1861)
Black-signed Heath Moth
(previously known as Panagra atrosignata)
OENOCHROMINAE,   GEOMETRIDAE,   GEOMETROIDEA
 
Don Herbison-Evans
(donherbisonevans@yahoo.com)
and
Stella Crossley

Dichromodes atrosignata
male
(Photo: courtesy of Donald Hobern, Merimbula, New South Wales)

The adult male moths of this species are brown, with forewings that are half crossed by two striking bent black lines outlined in white. The males have antennae with a feather-like fringe on one side.

Dichromodes atrosignata
female
(Photo: courtesy of Dianne Clarke, Jerrabomberra, New South Wales)

The females have thread-like antennae, and dark grey forewings, each with some black markings, and that are crossed by two or three uneven white lines that are narrowly edged with black.

Dichromodes atrosignata
male
(Photo: courtesy of CSIRO/BIO Photography Group, Centre for Biodiversity Genomics, University of Guelph)

The hindwings of both sexes are plain brown with some faint markings. The wingspan is about 3 cms.

Dichromodes atrosignata
female
(Photo: courtesy of Axel Hausmann and the Photography Group, Centre for Biodiversity Genomics, University of Guelph)

The species occurs in

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


    Further reading :

    Peter Marriott,
    Moths of Victoria: Part 4,
    Emeralds and Allies - GEOMETROIDEA (B)
    ,
    Entomological Society of Victoria, 2012, pp. 14-15, 22-23.

    Francis Walker,
    Geometrites,
    List of the Specimens of Lepidopterous Insects in the Collection of the British Museum,
    Part 23 (1861), p. 1006, No. 44.


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    (updated 20 June 2013, 14 November 2024)