1. Halpe sp. probably H. porus . FW with two large cellspots.
https://www.ifoundbutterflies.org/me...unte_ai461.jpg
https://commons.wikimedia.org/wiki/F...ded_Ace_UP.jpg
2. Cephrenes acalle female.
3. Potanthus probably P. mingo ;Heavy dark spots.
Mating pair Thailand.
https://2.bp.blogspot.com/-tFtROXZYi...us%2Bmingo.JPG
Similar P. flavus.
https://commons.wikimedia.org/wiki/F...hus_flavum.JPG
https://commons.wikimedia.org/wiki/F...hus_flavus.jpg
4. Likely Tajuria cippus.
http://4.bp.blogspot.com/-QPl2-zLrfP...ederick_01.jpg
The FW dotted postdiscal band may be weal/obscure.
eg. Indian T. cippus cippus.
https://upload.wikimedia.org/wikiped...u_Kuveskar.jpg
TL Seow: Cheers.
Thank you Dr Seow!