6. Arhopala major.
The markings are as for the amphimuta group.
There s a weak white spot on the HW tornal cilia but this can occur in both amphimuta & major.
The V spot in space 1b is J -shaped characteristic of A. major.

The other three, amphimuta, moolaiana & norda have a well-formed V spot.

A. major. Note weak white HW tornal spot present.
http://www.butterflycircle.com/check...20Tan%20CP.jpg
https://www.butterflycircle.com/chec...-2---Tan-C.jpg

A. amphimuta.
https://4.bp.blogspot.com/-J9Xmngyim...+amphimuta.jpg
https://4.bp.blogspot.com/-Q9RWngpqe...muta-NonaO.jpg


A. moolaiana & norda.
https://thaibutterflies.com/wp-conte...-moolaiana.jpg
https://thaibutterflies.com/wp-conte...la-norda-2.jpg