I've noticed that out my way it seems to be a two year cycle for Cicadas and Christmas Beetles, last year there were thousands of them but this year there has only been a handful here and there.
The Huntsmen have been quiet as well but there is a big mum with an egg sac in the garage so I expect there will be an abundance next summer.
As for the general population of flying bugs, there is still a healthy crowd around here. Just wear a half face helmet on a motorbike and they all home in on me.