Hi there

Not quite a classic housing issue, but posting here anyway.

For the past two weeks my balcony has quite literally been invaded by these tiny black flies or mosquitoes. Hundreds of them. I've lived here for 4 years, i.e. this is my 4th summer here and I've never had this issue. They only come at night when the lights are on (inside), I've had a few maybe in the past, but never like this.

Any thought why that could be and, most importantly, how I get rid of the damn things? (Vinegar didn't do the trick) Not even sure what they are...

Thanks
Cheers, S