Would be very grateful for an ID of this

[Tai LA]

Would be very grateful if I can get the ID of this Polyommatinae, thank you. Taken in Pahang 2 Dec 2016.

http://img141.imagevenue.com/loc431/th_79429_IMG_2063_122_431lo.JPG (http://img141.imagevenue.com/img.php?image=79429_IMG_2063_122_431lo.JPG)

[atronox]

Either Jamides malaccanus or parasaturatus; they are the only two species with the striae on the hindwing all almost perfectly straight and not dislocated. I'm not sure how to distinguish the two based on ventrals alone though.

[Psyche]

The two species J. malaccanus & parasaturatus in which the HW white striae run complete from top to bottom are very difficult to separate from the underside.

J malaccanus male is deeper blue above & the underside striae tend to be bluish.
The male parasaturatus is whitish blue & the striae below are white.
However, the only probable difference is that the orange patch in malaccanus tend to fuse with the white stria above it.

Examples of J. malaccanus.
Singapore male & female.
http://s860.photobucket.com/user/rustysocute123/media/Screenshot2012-10-27atPM112751.png.html
http://www.butterflycircle.com/checklist/mugshots/Jamides%20malaccanus%20malaccanus/Malaccan%20Caerulean%20-%20Khew.jpg
Thaialnd & Sumatra.
https://upload.wikimedia.org/wikipedia/commons/5/52/JamidesMalaccanusMFUpUnAC1.jpg
http://www.neutron.phys.ethz.ch/Lepidoptera/Lycaenidae/AZ12-0127R.jpg
http://www.neutron.phys.ethz.ch/Lepidoptera/Lycaenidae/AZ12-0127V.jpg

J parasaturatus male Malaya. Note upperside whitish blue.
http://s860.photobucket.com/user/rustysocute123/media/Screenshot2012-10-27atPM112704.png.html

It looks to be J. mamaccanus male which is much the commoner of the two.

TL Seow:Cheers.

[Tai LA]

Thanks Dr Seow!