tarantula

This is not a tarantula, but an very important one to recognise, the Wandering spider Phoneutria sp. (family Ctenidae). Based on your location P. boliviensis might be most likely but also P. fera and P. reidyi are quite possible. A ventral photograph of markings under the abdomen would have helped make a species identification. BUT please take care with these spiders, the venom can be medically significant.