7 is probably C. cormasa male.
FW with only the lower cellspot present. Main spots rather yellow. UnH a deeper reddish tone.
http://yutaka.it-n.jp/hes/93340001.html

8. C. cormasa female ;UpF spots yellow ;More distinct red tone.

9. probably C. cormasa male.
UpF spots yellow & Un. same contrast between the wings.