Yes. It’s shocking. I spend the past few decades assuming that I’d left them not that they’d left the earth. With covid I temporarily returned to the farm of my childhood and they were one of the most conspicuous collapses.
They used to be so numerous that they defined their own time of day - the magical cooling after mosquitos and before bedtime. Not any more. They are gone and mosquitoes no longer appear to be afraid of the dark.
> mosquitoes no longer appear to be afraid of the dark.
Might be the Asian Tiger Mosquito[0]. They are active 24/7, unlike their crepuscular North American cousins. They also go for your ankles, so you usually don't get the "mosquito whine" in your ear before you're bitten. They've even evolved to overwinter in freezing conditions.
They used to be so numerous that they defined their own time of day - the magical cooling after mosquitos and before bedtime. Not any more. They are gone and mosquitoes no longer appear to be afraid of the dark.