Same here. 59 years old and never heard of a buffalo gnat. Last year I got mauled by them. Bites all over my face and head before I could get to the truck. I was in my pond prowler so irt took a while to get here. I got my first bite Saturday by one. On the neck next to my adams apple. I have a knot the size of a half dollar still today. I put the head net back in the boat. Some people have a bigger reaction to them than others and that's me. They look like a gnat only bigger and they have a hard shell like body.