Around mid-day, I found this stunning moth resting in the shade on the side of a low concrete retaining wall. Not the most lovely of backdrops for this beauty, but it was still a pleasure to see it! Although I approached slowly at first, it actually tolerated me getting the camera lens within inches of it without so much as flinching. I think it is quite possible that this is Synanthedon resplendens
(Sycamore Borer) -- please see these images
already in the guide which were taken by Hartmut Wisch at the same location. Can someone confirm that I am at least in the right genus, if not actually correct on the species? Thanks!