Some slight variation in appearance, colour lacks usual depth of green, markings lack marginal spots on forewings and stance at rest differs from usual stance yet overal most closely resembles A. virescens..
this genus is a real challenge in Australia and i could well be wrong, but the exactitude of the match with an example in Bold Systems (2nd to last specimen)
is uncanny.
http://www.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=213316
Our first sighting of this Hawkmoth on the Dorrigo Plateau