You know what? I'm buying your character a fly swatter. I'm sure paying for the damage of a bullet hole in the wall would be far more irritating than just swatting the thing. The pistol was over kill.

Also, paragraphs - this story needs to be divided into more of those! I nearly hit the back button when I was confronted with this huge chunk of text. It's a bit overwhelming.

The opening sentence needs to be one that reels the reader in immediately. It has to get them hooked, or else they'll scan the first few phrases briefly, decide it's not for them, and find another story. "A few nght ago a moth flew in through my open window." is not the one you're looking for.

On a lighter note, I do like the idea of "The Devil Moth." Hey, at least I haven't seen it before.