Post 9.
Probably Potanthus mingo.
UnF spots with varying overlap.
UnH band upper end (spots 4 + 5) projected out.
Varying heavy black spots on HW band's outer margin.
Abdominal end strongly black- banded.
http://yutaka.it-n.jp/hes/92810010.html
Singapore male.
https://3.bp.blogspot.com/-f3wB2A2uj...0/_MG_1531.jpg
Mating pair Female left fresh, male right worn.
https://2.bp.blogspot.com/-tFtROXZYi...us%2Bmingo.JPG
P. nesta; FW spots 4 & 5 outer margin often nearly in line with main band.
UnH band upper spots (4+5) not projected out or barely.
http://yutaka.it-n.jp/hes/92800001.html
Probable P. nesta Thailand.
Note FW band straight; HW band is rectangular & spot 6 is absent.
https://www.samuibutterflies.com/02_...usparvus.v.jpg
Probable P. nesta ,India.
https://www.ifoundbutterflies.org/me...7cee7e8b-2.jpg
https://www.ifoundbutterflies.org/me...7cee7e8b-1.jpg
P. lydia lydia. FW spots 4 & 5 inner margins often convergent. spots 2 & 3 wide.
Abdominal end almost wholly black.
https://www.ifoundbutterflies.org/me...406e7d83-1.jpg
https://www.ifoundbutterflies.org/me...406e7d83-2.jpg
Compare P. lydia fraseri P. Malaysia.
https://thaibutterflies.com/wp-conte...thus-lydia.jpg
P. pallida. FW spots 4 & 5 widely detached from spot 6, detached or just touch spot 3.
Underside may be lightly spotted; abdominal end strongly black-banded.
http://yutaka.it-n.jp/hes/92720001.html
Sri Lankan male.
https://encrypted-tbn0.gstatic.com/i...VwCjA&usqp=CAU
Probable male India; Note wide spacing between FW spot 5 & 6, easily seen on UpF, and poor underside markings.
https://www.ifoundbutterflies.org/me...76a88b2f-1.jpg
https://www.ifoundbutterflies.org/me...76a88b2f-2.jpg
P. trachala FW spots 4 & 5 typically fully detached .spots 2 & 3 quadrate with concave margins in the male.
Abdominal end black banded ;UnH band upper part strongly projected.
https://4.bp.blogspot.com/-kvlAhJLLs...la-tytleri.jpg
https://2.bp.blogspot.com/-d1uwxt7AT...s_trachala.jpg
P. rectifasciatus ;FW band nearly straight; UnH band continuous in a curve, spot 6 very large.
https://www.flickr.com/photos/33212211@N00/38661764476
P. palnia; FW spot 5 often smaller than spot 5.
Underside dark shaded in a greenish tinge, no obvious spot.
Abdominal end mostly black.
https://www.flickr.com/photos/33212211@N00/37999817064
P. flava alcon. FW band mostly straight tapering to spot 5.
In ssp flava underside often heavily dark spotted.
http://yutaka.it-n.jp/hes/92780010.html
See images of P. nesta & mara in Evans' Hesperiid catalogue.
TL Seow; Cheers.