Arhopala athada.
The markings & pattern are as for this species.
The FW postdiscal band is partially dislocated at vein 4 & the HW postdiscal & submarginal bands are widely separated.
https://species.wikimedia.org/wiki/A...thadaMUpUn.jpg
https://www.butterflycircle.com/chec...lson%20Ong.jpg

A. aurea (& A. trogon) have short stiff tails.
https://4.bp.blogspot.com/-XjzQrhJOx...rea-SunnyC.jpg


TL Seow: CHeers.