TFB

Hatch on land and ride the wind. Attracted to blue hues.

Repellents... catnip oil (maybe get at farm centers), lemon grass oil, lemon joy dish soap (slathered on), 100% deet, (though not 100% effective for some reason).

Hang wide sticky strips under seats or any sticky strips, the whiter the better. A trap found around stables made from Alsynite fiberglass (this breaks up light to blue hues, like the blue you sometimes see around street  or car lights) These traps must have sticky stuff in them.

There are other things you can do, so check them out to see what works best for you.  Me, I'll try sticky strips and perhaps catnip oil (if I can find it) and put it on high socks. 

I'll be a nerd. 🤓

I need to know more. 

I'm Googling 'stable flies '

Are they hatching on land or water. Don't know yet. 

Little ankle biters. 

Now that's funny.  😆

Oh boy. I never experienced biting flies until one day years back we were driven off lake Erie by them.

Didn't know they were stable flies. I called them 'little Ba_tards'.

But thinking about it I noticed that flies bite just before storm's. Yep they do. On the lake that day we were swarmed. No repellent in sight and man did it pour.