Whatever you do, don't scratch those bites. The biting flies can leave scars. And do not wear black on the beach. Sounds nuts, but I have years of experience with these devils. They love my bod. My husband could not believe it one year when we were down there. They literally drove me back into the house and didn't bite him at all. Yes, they are particularly bad behind The Red Bar in that brackish inlet between Western Lake and the Gulf. Don't wade in there when the flies are swarming. Yuck. When will evolution catch up with this curse?