Argentine Black-and-white Tegu, Salvator merianae, with lots of butterflies.
Apparently a few weeks before I was there in October there were none.
Kaa-Iya del Gran Chaco National Park,Chaco, Bolivia, Kaa-Iya is a park larger than Belgium and it worth a visit for Toucans, Jaguars, Ocelot and Pumas.However it is a long distance from Santa Cruz and very hot