Oddly enough, I had my first encounter with a lizard getting stuck on one of the Sticky Cards, but it was not one of the cards that I hang. Those would be very hard for a lizard to get to. The one that got stuck was a huge lizard, perhaps 8-10" long, larger around than my thumb, and a glossy-brown in color. I am sure someone knows what kind of lizard that is. Anyway, I literally had to carefully use a knife to remove it. All four legs, all the tummy, the tail, and the bottom of the head were stuck fast. It would have simply died if I did not remove it from its capture. That sticky card was a white one, is meant to be placed on the floor, and captures crawling insects on the porch. I had two extra and simply put them on the floor of the "Everything Else" greenhouse. I thought they might catch a roach, spider, or whatever. I never thought about a lizard. I have removed those from the greenhouse.
I should have taken a picture. It would have been really neat.