> risk moths coming in...
What kind of backward place is that??
In the US you almost can't buy an openable window without a nifty invention: Window Screen.
True, we need it. Letting the dog out lets in three moths and a horse fly.
And to put the lie to my claim-- I did get windows without window-screens. Turns out there's three different grades of screen and the salesman was supposed to up-sell me to the extra-clear, not let me go un-sold.
Your heat-wave was our heat-wave and I was moving a ton of dirt (over half a cubic yard) into a low spot. Heavy DIY. After a summer of related low/wet-spot ditching and filling, the flies are less.
Let's not even go into whether Maine or Jersey (NJ USA) mosquitos are bigger. Or tastier.