What are tiny bugs on my window screens? A Missouri scientist investigates

As predictable as cool fall nights and Chiefs sweatshirts around Kansas City, I know my window screens will be covered with tiny bugs.

These black specks show up each autumn, congregating on my screens and windowsill, and complicating my desire to open the window on a pleasant day. I sometimes watch them crawling, or see their tiny wings flutter around.

I wanted to know what these insects are, and why they find homes in my window screens, so I emailed the Missouri Department of Conservation…

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