At a push as its got patterned wings could be a bee fly species but you would say its got a really long snout. It would be about 1cm long.
Long back legs that are paler and perhaps what looks like long antennae still makes me think its one of the members of the sawfly species... some saw fly species are dinky like 5mm and under!
The pic was enlarged/cropped from what I took on my phone, so it's not the best. I'll have a nosy at pics of saw flies and fruit flies to see if there's anything similar. Thank you! The other day we had a house centipede which was very exotic looking, it looked like a feather on the wall before it ran off at the speed of light