Unidentified insect Might be a Giant [Black] Ichneumon fly/wasp or Sabre wasp. Probably male as it appears not to have the ovipositor (fearsome-looking sting at the end of the female wasp's abdomen).
If it is, then more here. Though it looks fearsome, it's harmless.
Another pic here. Might've popped out of the Forest of Tay to sunbathe.
There are 000's of species in the Ichneumonidae family so I'll leave it to the bug-gers to positively identify.