If you mean finding CPs in collections rather than in the wild, Fernando Rivadavia of Sao Paulo wrote this on another bulletin board last year:
"Strangely enough, over 7 years after abandoning my old CP collection in a greenhouse at the University of Sao Paulo, the plants which look best (I passed by there recently) are some large Pings, maybe P.moranensis. There are still a few Neps around and well as plenty of D.binata and D.spatulata and some D.capensis. Maybe more, I didn't really look (I was more interested in the U.nelumbifolia thriving in a nearby bromeliad where I'd planted them around early 96 I think)."
That greenhouse should not be too hard to find.
My wife is Brazilian, and we were in Sao Paulo last June (she is from Jundiai). We were at a shopping mall, there was a plant sale there. I walked around and was surprised to find Venus Flytraps and some Nepenthes there for sale. A lot actually! And they were in absolutely beautiful shape, many red traps and huge pitchers. The weather there is absolutely perfect for growing probably every CP...outside! I just thought I would share my thoughts, perhaps you might have some luck like I did. I'll help you look around too, the best I can here in the US. Feel free to email me. Boa sorte!
If you have not yet found Fernando's fantastic Brasilian Web pages, they are
You could try emailing my friend in Brasil, Joao Roberto Gabbardo who is a friend to CPers and often helps *those new to the hobby with seeds and spare plants.
Please give Joao my regards, and good luck.