The adult moths are white, with a broad diffuse brown markings on the forewings. The hindwings are white, each having a complex broad black submarginal patch. The wingspan is about 4 cms.

(Photo: copyright Catherine J. Young)

The species occurs in mallee habitats from the Eyre Peninsula through the Murray Mallee to western New South Wales. The adults fly during late April to early May.

Further reading :

Peter B. McQuillan,
A review of the Australian moth genus Thalaina (Lepidoptera: Geometridae: Ennominae),
Transactions of the Royal Society of South Australia.
Volume 105, Issue 1 (1981) pp. 1-23.

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(updated 16 August 2008)