Attack of the green buggers

The sky doesn't really get dark in London until about 10:30pm, so most nights we don't have to use the lights for very long. Anyway, late in the evening the lights get switched on.... the other day we switched on the lights in the bathroom and came back after 30 minutes. We had left the windows open and had quite a surprise waiting for us - there was a mass of maybe 50 green mosquitoes on our ceiling (this is a breed of mosquitoes that I am sure I've never seen in the US - they are relatively harmless). I wish I had taken a picture of Jon and squishing all of them, but let's just say that we don't keep our windows open after dark any more!