They are all correct except 4 should be P. athamas as well.

P. athamas & arja can be confusingly similar.
Both have broad or narrow bands, but typically broader in P. arja.

The main difference is colour. P. arja being white or greenish on the upperside & P. athamas yellow or yellow green.

P. athamas ;band more often narrow. FW distal margin strongly excavated with a distinct angle at vein 2, FW cellspot often two (variable).
Underside band more strongly tinged yellow.
http://www.flutters.org/home/photoga...icture&id=1145
http://yutaka.it-n.jp/cha/60080001.html
https://www.learnaboutbutterflies.co...00360-002b.jpg
https://www.learnaboutbutterflies.co...08290-002b.jpg


P. arja ;Upperside distinctly white or greenish white ;FW distal margin straighter. cellspot often one (variable).
Underside band greenish white, may slightly yellow tinged; often wide & subapical spot rectangular.
https://www.flickr.com/photos/monsoo...oi/11348423606
https://commons.wikimedia.org/wiki/F...C_9781_(3).jpg
https://live.staticflickr.com/1962/4...ca33acf4_b.jpg
https://www.mostphotos.com/en-us/330...b-polyura-arja


TL Seow: Cheers.
O