#4
I do not think that it is Platygastridae, the abdomen should be flattened more!
With this abdomen in bubble which finishes at a peak, I lean rather towards Proctotrupidae!
However one would say that it ya a horn on the thorax like , difficult to slice !
Inostemma
http://cedarcreek.umn.edu/insects/album/025044ap.html