2. is Arhopala evansi.
This is a member of the alea subgroup, normally very difficult to ID. A evansi however, have a slatey (greyish) glaze with a slight pinkish flush.
This cause the markings to be better contrasted ie stand out.
The FW fortunately is raised high enough to show postdiscal spot 2 & 3 are larger & wider than the spots above them, a useful feature.
The last two unidentified, this time from Thale Ban National Park, close to the Malayan border of Perlis, an interesting and not well known area in both sides of the border.
2, should be Arhopala selta.Male ;short palpi & truncated abdominal end.
This pic is in perfect profile & the FW termen is very rounded.
Only two species in the alea subgroup have the termen rounded, the other being A. aroa which have the submarginal & postdiscal band well-spaced out.
In addition A. selta have HW spot 6 widely or distinctly overlapping the cellend bar.
The FW postdiscal band also tends to be wide. https://www.thaibutterflies.com/wp-c...a-1080x675.jpg https://fr.wikipedia.org/wiki/Arhopa...e:Arhopala.jpg