Hi! I think you are right about C. indica, except that, to my knowledge, C. indigotea is the accepted name now. See:
viewtopic.php?f=8&t=15368I would think that n. 14 is Omalus violaceus.
You are correct about T. cyanea.
However, I don’t think that n. 16 is C. inaequalis. Among other things, that sp. has a very high longitudinal keel along T III, and deep depressions on both sides of it, the teeth on the edge are crammed around the center, shorter hairs on head an notum and the punctuation on the tergites is much rougher and denser. However, I can’t suggest an other ID, for that, and for an ID of n. 13 you have to wait for an expert…