Arhopala 1.
Normally it will be very difficult to ID based on upperside only, but this appears to be a female A. kurzi.
The extend of the brown border, the costal blue divided by the veins into streaks, & the hindwing blue appears to be divided into strips, seem sufficient clues.

2. A. zambra female (note extensive brown on hindwing topside.)
Key line 1, 7, 8, 95, 96, 100, 120, 124, 126, 146, 148, 149,

3. A. zambra.

4 A. agesilaus.
Key line 1, 7, 8, 9, 23, 45, 55, 56, 57.

5. A. zambra.

TL Seow