Normally in T. colon FW spots 4 & 5 are distorted in shape & in the male they are not aligned, ie spot 5 is farther out from spot 4.
This is not so obvious in the female. In female FW spot 5 is often bisected horizontally as seen here.
The general appearance is as in T. besta female but besta female have spots 4 & 5 equal & not distorted.