In my other life, I have obtained and briefly tested Autan, or Picardin, a new mosquito repellent originally from fancy German chemists in Europe. It is at Wal-mart, etc. Johnson & Johnson claim it works on Stable flies (the grey ones that look like house flies, but bite). This appeared to be the case when I tried it at my lab last week. I guarantee that the old reliable deet repellent is absolutely useless for stable flies, but remains excellent for most species of mosquitoes and biting midges (the correct name for sandflies & no-see-ums especially near salt water). So who will try Autan for saltmarsh-breeding greenheads or other tabanids that bite sailors? Please respond on this forum!