Casbia tetramera (Lower, 1894)
Arched Casbia
synonyms:
Casbia crataea Turner, 1939
Boarmia eucrypta Turner, 1947
CABERINI,   ENNOMINAE,   GEOMETRIDAE,   GEOMETROIDEA
 
Don Herbison-Evans
(donherbisonevans@outlook.com)
and
Stella Crossley


(Photo: courtesy of Cathy Byrne, Moths of Victoria: Part 7)

This caterpillar is brown with squarish dark marks on the back of each segment. It was found feeding on

  • Dogwood ( Pomaderris apetala, RHAMNACEAE ).


    female
    (Photo: courtesy of Peter Marriott, Moths of Victoria: Part 7)

    The adult moth is brown with variable blurred dark markings, and sometimes with a vague pale yellow arc across the middle of each wing.


    male
    (Photo: courtesy of Cathy Byrne, Moths of Victoria: Part 7)

    At rest the wings are held flat. The moths have a wingspan of about 4 cms. The males have well-developed feathered antennae.


    (Photo: courtesy of Cathy Byrne, Moths of Victoria: Part 7)

    The eggs are oval with a fine embossed pattern of serrated ridges. Initially they are yellow, but they develop red markings as hatching approaches.

    The species has been found in

  • Victoria, and
  • Tasmania.

    The genus of this species is under review.


    Further reading :

    Marilyn Hewish,
    Moths of Victoria: Part 7,
    Bark Moths and Allies - GEOMETROIDEA (D)
    ,
    Entomological Society of Victoria, 2016, pp. 6-7, 14-15.

    Oswald B. Lower,
    New Australian Heterocera,
    Transactions of the Royal Society of South Australia,
    Volume 18 (1894), p. 82.

    A. Jefferis Turner,
    A second revision of the Lepidoptera of Tasmania,
    courtesy of the Library Open Repository, University of Tasmania Library,
    Papers and Proceedings of the Royal Society of Tasmania,
    1939, p. 70.

    A. Jefferis Turner,
    New Australian species of Boarmiadae (Lepidoptera),
    Proceedings of the Royal Society of Queensland,
    Volume 58 (1947), p. 86, No. 36.


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    (written 21 March 2018)