I've been running for a few years now and I really hate the summer as all my runs are plagued with swarming mayflies. Those flies will get sucked up your nose and into your lungs and in your eyes. It makes for an annoying run. This is why I love running in the winter with my -30c temperatures: no bugs.
For those of you who run and have to deal with these bugs: how do you deal? I've been waving my hands in front of my face like a mad woman in an effort to keep them away from my face but that makes for a frustrating run. I've been considering sewing a surgeon like face mask made out of mesh in an effort to keep them away from my mouth and nose.