Aaron Soh
They should be correct as B. oceia.
Generally B. oceia male have much reduced spots, ie smaller & less.
As B. oceia does not occur in India or China these males are correct as B. farri.
https://www.flickr.com/photos/itchydogimages/7863317448
https://commons.wikimedia.org/wiki/F...B_DSC_6157.jpg
https://www.ifoundbutterflies.org/me...dhan_ag257.jpg
Female Vietnam
http://butterfliesvietnam.blogspot.c...ush-swift.html
This eclosed female indicate B. farri in Singapore.
https://butterflycircle.blogspot.com...ush-swift.html
Compare larval head.
https://www.ifoundbutterflies.org/sp/793/Baoris-farri
The assumption at the moment is all the dark ones are B. oceia.
https://www.butterflycircle.com/chec...-Simon-Sng.jpg
https://www.besgroup.org/wp-content/...d-dropping.jpg
https://4.bp.blogspot.com/-zofygsdg7...oris+oceia.jpg
TL Seow; Cheers.
Thanks Dr Seow. They were both very dark
Aaron Soh