adscitella [ID'd by Sid] - this isn't on the Georgian List either
Update - well this is an interesting bit of research - This is indeed an Essex Emerald. There are four subspecies in the species. The British one, now thought to be extinct does indeed feed on Sea Wormwood and was only found on coastal saltmarshes. But the other 3 subspecies feed on Yarrow and have been recorded well inland. In fact the photograph on "The Lepidoptera Barcode for Life" site was tagged only 26 miles from where I saw it in Dalis Mta. - Success !!!
There are 19 species of "Emerald" moths on the Georgia List. Of which I have a photo of another different one.
Ground Lackey - ditto