You know those gigantic four-legged freaks that fly in your face and swoop about like drunken B-52 bombers? On the West Coast, they’re referred to as “Mosquito Eaters,” in other areas, “Mosquito Hawks.” In reality these things are called crane flies, and no, they do not eat mosquitoes. In fact, adult crane flies don’t eat at all. They mature only to reproduce and die quickly thereafter. The grubs feed on decaying plant life in the soil. Crane flies carry no venom, and do not bite. Because they don’t eat, they can’t do anything dazzling enough to be considered a pest; except of course in the sense of annoyance. And seeing as summer is the season of this winged nuisance, they should be polluting your home in no time, if they haven’t already.
I for one hate crane flies. I wish they would vanish from the earth. I can’t sleep knowing one is dancing about my room, as I anticipate that it will fly into my mouth at any given moment. The only real purpose they seem to serve is as a food source for certain species of birds. Go figure.
http://synthesis.net/2008/04/14/crane-flies-mosquito-eaters-that-dont-eat-mosquitoes/
Found this here...comments are hilarious