This is likely the female of Arhopala eumolphus maxwelli , the 2 shots ( #2  of the same butterfly )were taken today while tracking the male which has the exact same marking except upper surface is metalic green.
Under wing markings of #2 matches the male in #1 . The female upper surface of both fore and hind wings are metallic blue in color border by dark brown , reference : Butterflies of Thailand, Plate 292 L273b on Arhopala eumolphus maxwelli
Two males with their distinctive metallic green upper were sighted today but unable to take any shot due to their skittishness . The males safety distance extend out to almost 3 meters despite my very cautious approach. In all my encounters, with the males so far, they take flight with the slightest disturbance and head for the top of the tree most of the time.
The females appears to be more docile and stay in the under bush flitting from leaf to leaf and with much shorter safety distance.
#1 Males
#2 This is a Arhopala silhetensis adorea (Sylhet Oakblue) instead of the female of the Green Oakblue.... Corrected on 19th Apr 08
#3
Female upper wing
Last edited by Silverstreak; 19-Apr-2008 at 09:36 PM.
Sunny
~~When the Going Gets Tough, the Tough Get Going~~
Shot this worn Arhopala specimen.
Looks like a female specimen of A. eumolphus maxwelli when checked against the Plate 292 L273b of Pisuth's book. Hopefully a more pristine specimen will come my way soon.
Found this shot taken at USR in the TBD archive folder, is this possibly a Arhopala eumolphus maxwelli (blue on top), please help me to confirm the ID & thx!
BJ, from what I see, your shot is not Arhopala eumolphus maxwelli (the forewing postdiscal spot at space 4 move out of line towards the edge (termen ?) )
In your shot, the forewing postdiscal spot at space 4 is still quite in line with those at space 5 and 6.