The gnat is a small two-winged insect. The distinction between fiies, gnats, and midges is not clear. One of the best known species of gnat is the punkie of the northern woods. It is so small that native Americans gave it the name of "no-see-um." It penetrates the finest mosquito bar and is a great nuisance to the camper and hunter. Fortunately the gnat is active during the daytime only. Certain species of gnat infest the eyes of deer, wolves, and other wild animals, even turkeys, almost blinding them.