Gnats

A morning walk, a muggy day,
A little warm for not-yet-May;
The country air both fresh and still -
A pleasant outing, right? Until...

The gnats attacked, around my face
And soon they weaseled everyplace -
Into my ears, beneath my hat,
Along my scalp - I squashed some flat...

But every squished one brought ten more,
Which kept arriving by the score.
I waved my hands, I fanned my cap
Yet nothing worked except a slap.

Some pests are worse for these don't bite
Or sting or keep you up at night
But barring that, I'll bet that stats
Would prove that gnats can drive you bats!