Initially their leaf mine is straight and filled with frass, typically in a leaf of a young shoot. Later their mine turns into a blotch with frass around the periphery.
To pupate, they leave their mine, and pupate nearby in a flimsy white cocoon.
(Photo: courtesy of Landcare Research Ltd., New Zealand)
This moth is fawn with hairy wings. It has a wingspan of about 8 mm. It has been found in Australia (from Toowoomba to Melbourne) and in New Zealand.
Further reading :
Ian F.B. Common, Moths of Australia, Melbourne University Press, 1990, pp. 215-216.
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(updated 18 May 2004)