I'm just kind of surprised that there are enough mosquitoes to be a problem this time of year in the UK. I'm in the south, and we haven't even had issues with mosquitoes for about a month. I had a problem with fruit flies for awhile when the weather started to change; they all just came inside. :P They would congregate in the reptile room since it was that warmest place in the apartment. Didn't last more than about two weeks though.