Correction
Oops!.
The upperside already clearly shows it it Curetis bulis.
I was blind sided by previous examples with narrow orange bands labelled as C. santana.
eg.
https://www.istockphoto.com/photo/ma...114769-1842380
https://farm5.staticflickr.com/4565/...71544b58_c.jpg
Eliot state in C. bulis base of space 7 at least half black.
In your pix the FW is raised high so there is no ambiquity where space 7 is.
http://yutaka.it-n.jp/lyc3/84030010.html
http://yutaka.it-n.jp/lyc3/84050010.html
In C. bulis HW postdiscal spot 7 is large & & spot 6 is small & tuck under (inwards ) of spot 7.
HW submarginal spots are in line. In your case not so clear cut.
UntitleBULIS.png
Correction: HW upperside Space 6 & 7 in above images are actually space 5 & 6.
Space 7 is hidden under the FW in the image below.
https://inaturalist-open-data.s3.ama...2082/large.jpg
It would appear C. bulis is not that rare.
TL Seow: Cheers.