ah, that makes sense. I have found bats in my pool and giant ants when they do their mating flights but no snakes, I would not like that. My dogs and high walls keep the coatimundi's and raccoons and possums out of my yard. Luckily we don't have noseeums although I have experienced those on caribbean islands, hate them. The mosquitoes are not so bad that I need a screened room except at dawn and dusk or if I skip the exterminator too long. Well, that's me - my partner would say they are bad in the rainy season.
Good to know that usually it is screening on top so there is sun, I had thought it was a solid roof.