Worst than mosquitoes. They strike and are found in rural regions along with many other kind of biting insects! Im speaking of Horse-Fly that are big like a nail and that bite like pains, Ceraptopogonidae that we call brulot, are more minuscule than 1 mm and they fucking hurt like hell near 19h00 pm to 23:00 pm, ticks potentially carrying the lyme disease, Chiggers and of course, mosquitoes and...black flies.
Black flies are like mosquitoes...but they bite you instead. Not a lot of people are lucky enough to go nearly daily in the wild forest....but I kid you not, in summer, it turns into hell.