Once you got root armor, deathsquitos no longer pose much of a problem. With good food, they are very survivable. Just watch your environment. If you still have no business with the plains, just simply don't go there.

I went buttnaked into the plains, no armor but a summer crown, and just ate deer, boar and neck tail. I had about a 100 health. The only weapon I carried was a flint knife.

When the deathsquito approached I started swinging. I hit it once, then it hit me, I staggered a bit but survived with about 20+ health. The flint knife was fast enough to hit the bugger again, killing it.

So, yes. Deathsquitos are very survivable.

Don't try this at home, kids.

Edit: I guess my message here is, you need to have good health, at least 100 health is the minimum and you need a very fast weapon or very good timing. Then deathsquitos are quite manageable and not much of a problem.

https://steamcommunity.com/sharedfiles/filedetails/?id=2835451735