I'm not sure that any of you will have come across this little blighters. I have never seen them any where except on birds as they feed on bird blood.
How ever this changed today when I stared finding them else where. Now you might say it's just a fly but this is a super fly and it bites. As hard as you might try you can't squash it beat it or kill it they just don't die. They play dead and have this nasty habit of trying to run down your cloths. If anyone wants a pet I have a spare one in a box on my desk.
Here's a video of on that is playing dead. You have been warned, if you see one run