I'm pretty sure this is one of the 15,000 species in the family Buprestidae. About 8-9mm IIRC and found at La Selva Biological Station. It's the only one I've ever seen and is very lovely.
Surely a member of the family Membracidae, and possibly Poppea capricornis. Pretty, small at about 5-6mm, and not uncommon.
Commonly known as a flannel moth or puss caterpillar, this caterpillar is a lovely, large, and unusual larva. I found this one in a swampy area. It also evokes unpleasant memories...