1, 2, & 4 are the same species & should be Caltoris cahira austeni.
1. FW with 2 prominent cellspots , UNH deeper darker brown.
2. FW with 2 cellspots, the upper one rather faint; UnH deeper ,darker brown contrasting with FW; a tiny spot in space 1b visible on right FW.
4. FW with 2 cellspot & a spot 1b; UnH dark & strongly contrasted.
The presence of a spot in FW space 1b suggest C. sirius as it always have it & its underside is described as chocolate.
However the arrangement of the FW spots are different.
C. cahira ; FW spot 2, 3, & 4 rapidly becomes smaller upwards .
http://yutaka.it-n.jp/hes/93300010.html
C. sirius;FW spots 2, 3, & 4 tapers gradually to the subapical spots.
http://yutaka.it-n.jp/hes/93280001.html