Fisera perplexata Walker, 1860 Light-tan Crest-moth DIPTYCHINI,   ENNOMINAE,   GEOMETRIDAE,   GEOMETROIDEA

Don Herbison-Evans (donherbisonevans@yahoo.com) and Cathy Byrne & Stella Crossley

winter form
(Photo: courtesy of Laura Levens, Victoria)

These adult moths have brown forewings, each with a central dark spot. The summer form has a submarginal row of smaller dark dots. The winter form has a pale marginal area demarked by a dark cusped submarginal line. At rest, the wings are held over the body like a tent. The wingspan is about 4 cms.

summer form
(Photo: courtesy of Cathy Byrne)

The eggs are smooth and oval, and come yellow and white with purple blotches.

eggs, magnified
(Photo: courtesy of Cathy Byrne)

The species occurs in:

South Australia.

wing undersides
(Photo: courtesy of Marilyn Hewish, Moths of Victoria: Part 5)

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Further reading :

Marilyn Hewish,
Moths of Victoria: Part 5 - Satin Moths and Allies - GEOMETROIDEA (A),
Entomological Society of Victoria, 2014, pp. 34-35.

Francis Walker,
Geometrites,
List of the Specimens of Lepidopterous Insects in the Collection of the British Museum,
Part 21 (1860), p. 292, No. 1.

Catherine J. Young,
Characterisation of the Australian Nacophorini and a Phylogeny for the Geometridae from Molecular and Morphological Data,
Ph.D. thesis, University of Tasmania, 2003.

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(updated 24 July 2013, 3 June 2018, 27 February 2021)