A little dramatic but I looked for the first time into the top of a Sarracenia plant in a bog planter next to my pond. This is what I saw..... 
I'm sure there are better photogs out there who have captured better shots of a death trap.
Pretty cool....you've given me an idea....I have gnats literally just falling out of the sky right now, and they fall right through my screen...perhaps they would be a welcomed 'guest' if I had a plant like that.

The lizards like them, but I don't. I have to sweep them up several times a day, since there are millions of them, and way more than the lizards can handle.