Confidence: It might be this.
Notes: Unfortunately I could not get to see the underside of the hind wings, which would have made ID much easier. From this photo, I am finding it a little difficult to decide with certainty, so I've left it as A. pyramidea agg.
These are two photos of the same specimen. The darker one shows how it looked to the eye and the lighter one had higher exposure, in order to help by showing some markings more clearly.