Scorpion Fly (Panorpa communis)
The Scorpion Fly is not a true fly, ie a member of the order Diptera, it is more closely related to lacewings and caddis flies.
Although pretty nasty looking individuals they are quite harmless and do not live up to their name, Scorpion.
They are usually found in woodland and shady places and feed on dead animal matter and rotting fruit. You can see them from May through until August.