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Well, the top one is not easy. It certainly is Rhamphomyia. In the second post it is clear that vein R4+5 has no fork and the mouthparts in the first post are clearly too short for Empis. I think it is a species of the R. sulcata group. The prey certainly is Hilara.

The last series of pictures are another Rhamphomyia. This specimen is a female from a subgenus where the females often have a deviating wing venation (look at the size of the discal cell): R. (Megacyttarus) crassirostris.