I live in Pennsylvania and these are a bane to hunters on warmer days. Especially those of us who hunt the thickets for birds like grouse and woodcock. Not as dangerous as the deer tick, however as far as nuisance, I've had up to 3-5 fly onto my person seemingly every 30 seconds on warm days. I've quit bird hunting early on those days because the frustration and discomfort have been too much to justify carrying a gun in the woods. Are these still only in the northeastern US? Anyone else suffer the annoyance of these unrelenting insects?
https://en.wikipedia.org/wiki/Lipoptena_cervi
