Black flies. There is no other creature like them on Earth. I grew up with them in upstate NY and thought I had experience until I went to Canada just about this time of year in 2012. Now I understand why the caribou jump off the cliffs. I was so chewed to pieces I looked like I had a disease. I swear it gave me fever. Deet was an aphrodisiac to them, it made them attack more. Only the bug nets slowed them down. Awful. I am shuddering just thinking about it.

Yikes....