You do have the elusive Stibochiona persephone.
The original description by Staudinger is in German.
https://archive.org/stream/deutschee...e/451/mode/1up
Roughly translated, the male is deep black with a white short spot not far from the margin at the apex, white dots on the fringes (?cilia)& two vague blue spots in the middle cell of the forewing.
It is amazing this is so rare that there are no images on the net.
TL Seow: Cheers.
PS. In Lepindex the taxon (taxonomic name) persephone is placed as a junior synonym of schoenbergi
http://www.nhm.ac.uk/our-science/dat...ch_type=starts
There is an image of Stibochiona schoenbergi but it is nothing like the original description of S. persephone.
https://species.wikimedia.org/wiki/S...caPlate115.JPG