Twin Lobed Deer Fly

We were walking along, not much happening as it was really a bit too hot, and I felt something hit my hand...as any bug chaser knows you always look to see what is on you before you swat it away..lol

This guy was sitting on my right hand (so I couldnt take a shot!! :( ) However I went running over to Liz and said 'look look, take its picture... god I hope it doesnt bite me'. So while I'm trying hard to be very still so she can take the above shot, sure enough hes bitting me and getting a good ol meal..lol But frankly it was worth it, Just look at him!

Any help on an ID would be great, I'd love for one to come along and bite my left hand so I can take a shot with the raynox :)