This is a typical Nacaduba kurava male.

There are three main bands on the FW.
The FW submarginal spots have rounded margins.
There is always a spot on the costa above the innermost FW band.
https://www.butterflycircle.com/chec...ue-SunnyC2.JPG

Two similar species with three FW main bands.

Nacaduba beroe.
This is similar to N. kurava but always lack the costal spot above the innermost band.
http://thaibutterflies.com/Butterflies/nacaduba-beroe/


Nacaduba berenice.
This always have a costal spot above the innermost FW band (as in kurava).
The spots are more irregular.
The dark lines within the bands are strongly developed.
http://thaibutterflies.com/Butterfli...duba-berenice/


TL Seow: Cheers.