Actually, the vast majority of the worker ant population survives winter with no problem. The queen of most species will not tend brood or feed herself once the first brood has developed. So for the colony to survive, workers must also. The entire colony tends to move very deep into the ground and slow down during winter. They will get active on the surface if there are a couple warm days.
True, the female mantid does not deposit the ooth in the winter. In fact, our local species are laying right now! The point was that the ants are very active while the ooth is being made. Thus, the winter cold is not an effective ant deterent.
True, the female mantid does not deposit the ooth in the winter. In fact, our local species are laying right now! The point was that the ants are very active while the ooth is being made. Thus, the winter cold is not an effective ant deterent.
But if they hibernate, then your theory of "the cold weather won't affect them" is wrong, since they aren't moving about looking for ooths. 
