It is a male Transparent 6-line Blue Nacaduba kurava. Note the large quadrate(squarish) HW submarginal spot 6.
It is necessary to ID the sex first.(Here male, straight termen(outer margin), truncated abdominal tip, short palpi 3rd segment.)
The males of N. kurava & beroe have the dark lines/striae within the FW postdiscal band less well-developed.
The dark lines are almost obsolete in the male of N. beroe. Females of both species have well-developed dark striae.
The wingbases are darkened in the male N. beroe(not in the female). The wingbases look darkish here, but only the irregular bands are darkened.
If you look along HW space 7 the basal ground colour is not dark. Ditto for the FW base.
Examples of the male Nacaduba beroe.
1.(The palpi 3rd segment is the free black tip only, not down to the eye.)
The FW dark lines in the postdiscal band are almost obsolete. The wings are darkened so it is hard to see the bases are darker eg. along space 7. http://wanderingbutterflyeffect.file...f39fce860b.jpg
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