Digger Wasp? Crabronidae? Ectemnius sp? (Thanks for link Jason (jel1969), thanks for suggestion Maria (rockwolf))
Not sure of id on this one, not in my book at any rate. Not easy to capture different angles as it was so intent on moving from flower to flower, feeding, with its face deep in the umbellifers. Possibly a Digger Wasp but feel free to correct this. Think the antennae colour is quite distinctive.