Post 7.

1 https://www.inaturalist.org/observations/202971454

Very likely Arhopala aroa.
Salient features.
Member of the alea subgroup.
FW margin very rounded.
HW with dark purple right to the margin.
abdominal end & short palpi also indicate a male.

Only two species in the alea subgroup have the FW rounded in the male.
It is less obvious in A. selta which also have a broad HW border & a blocky HW spot 6.
https://yutaka.it-n.jp/lyc4f/82110001.html
https://thaibutterflies.com/Butterflies/arhopala-selta/

Arhopala aroa have more rounded FW, dark purple blue to the HW margin & a Hw spot6 which is wider above & convex on the outside.
https://yutaka.it-n.jp/lyc4f/82180001.html
See also Otsuka L 211.