Looks like a vine weevil to me...

MG you scaremonger! Too long in the leg. It's a bug, sap sucking type, probably one that hasn't got a common name. I've tried to look it up. I've got a great book called Complete British Insects (it follows on from Incomplete British Insects!), which shows lots of bugs, but the foreshortened view prevents me from tying it down to a specific one.

Oops - I siad it 'looked like' and I freely admit I'm not hugely knowledgeable on bugs!

It does have the wrong sort of beak for one of the predatory types, though.

Some sort of gnat.

Good golly, the gnats grow big in the UK, Kildermorie!! : )

Looks like a Datura flower, so the Gnat is not that big, thank goodness!

Hmm...I was pretty sure that it is a Petunia, like Mouldy says.

The proboscis was blade shaped, looked like it would have no trouble piercing flesh & the wee beastie was approx half an inch or one & a half cms long...not including the legs.
To put it into perspective - the petunia it's sat on is four inches wide.
Now you understand why I said the proboscis is viscious-looking!
Should I run for the hills? ;-)

The assassin bug has a similarly shaped body, but has a thinner, jointed proboscis for drilling between the chitin plates of its normal prey--other bugs! The vegetarian species normally have stouter probosces, for drilling into tough stems or fruit rinds.

So, which one was that, I wonder, Tugbrethil?
Unfortunately, my phone camera is too naff to provide enough detail. Lol.