a million little black polka dots

It must be the heat wave.
There are thousands of little ladybugs crawling across the windows of my house.
They landed a couple at a time on my arms as i stretched out on the grass.
They never fly straight, they always fly in an intricate path of circles and loop de loops.
Some have little black polka dots, and some are all red.
Their wings flutter less gracefully than a butterfly's...
but they disappear when the ladybug lands.
It's magic.
They are here for the last taste of summer.
Outside, they are swarming and flying all around, as their red backs hit the sunlight just right.
Good luck is dressed in a million little black polka dots.