Invisible bugs that bite around head, scalp (itch mites?)

In my NE Minneapolis yard late afternoon I feel itchy bites in my ears, hair. Can 't see actual bites -- just feel them. Continues for a while back inside until I shower. Invisible biters. Heard another older woman talk about similar experience sitting on her outdoor patio in Minnetonka.,,,, When I tried to research what it could be, the only thing I found that looked familiar was an article about an epidemic of "itch mites" in Kansas and Nebraska. Is that something we have here, or is there a different explanation? And is there any way to fend them off, whatever they are? Do perfumed hair products attract them?..... Another article I found talked about biting mites falling on heads carried by wind from Oak Trees......