A daunting group.

12 Likely Acytolepis puspa.
Acytolepis is recognised by a basal spot in HW space 7 (the little triangular spot).
The two species are nearly identical on the underside .Hampson first described lilacea as a form of A. puspa.

The upperside of A. puspa have a whitish FW patch as well as on the HW.
A. lilacea is without the whitish patches.
Confusingly A. puspa lambi in P.Malaysia & Singapore do not have the white patches.

A. puspa ;FW postdiscal spot 4 is set perpendicular( 90deg.) or nearly so to spot 3.
http://www.ifoundbutterflies.org/med...efd72823-2.jpg
http://www.ifoundbutterflies.org/med...504408b7-2.jpg
http://www.ifoundbutterflies.org/med...bdd35911-1.jpg
http://www.ifoundbutterflies.org/med...bdd35911-2.jpg
http://www.ifoundbutterflies.org/med...95299547-1.jpg
http://www.ifoundbutterflies.org/med...95299547-2.jpg
https://species.wikimedia.org/wiki/A...GiscaMFAC2.jpg
http://www.lycaenidae.gmxhome.de/Lyc...uspagisca1.jpg

A. lilacea; FW postdiscal spot 4 is more nearly parallel to spot 3.
http://www.ifoundbutterflies.org/med...0b67f1df-1.jpg
http://www.thaibutterflies.com/wp-co...a-1080x720.jpg
http://yutaka.it-n.jp/lyc4/80840001.html

TL Seow: Cheers.