17. https://www.inaturalist.org/observations/197184884

Either E. doubledayi or eyndhovii. Probably E. doubledayi.
It is near impossible to separate the two species based on the underside markings.
E. doubledayi is distinctly larger, being slightly larger than E. mulciber.


E. doubledayi larger FW 50-55 mm.
Male UpF with a dark blue sheen. Female UpF with some discal spots.
https://malaysiabutterflies.myspecie...pecies-evalida
https://yutaka.it-n.jp/dan/30640010.html

eyndhovii. Smaller, FW 45-55 mm.
Male UpF dark velvety brown; Female UpF unmarked.
UnH more often with larger white discal spots.
https://yutaka.it-n.jp/dan/30660010.html
https://blogger.googleusercontent.co...BobCheong2.jpg
https://blogger.googleusercontent.co...pedBC-KSK4.jpg


18. https://www.inaturalist.org/observations/197160071

Probably correct as Notocrypta clavata.
In this species the UnF white band run to the costal margin broadly, & FW spot 4 is rarely present.
Here the UnF white band seem to taper slightly at the margin, but variation occurs.
https://www.pamsbutterflies.com/butt...lavata-clavata
https://commons.wikimedia.org/wiki/C...623433394).jpg
https://thaibutterflies.com/wp-conte...ta-clavata.jpg


N. paralysos.Wband not reaching costa broadly; almost always with spot 4.
https://blogger.googleusercontent.co...D_adult_01.jpg
https://www.butterflycircle.com/chec...enry%20Koh.jpg


TL Seow: Cheers.