Adenomera diptyx
It is native to northern Argentina , Paraguay , eastern Bolivia , and southern Brazil . 
<triplet> Paraguay <subj> Bolivia <obj> shares border with <subj> Brazil <obj> shares border with <triplet> Bolivia <subj> Argentina <obj> shares border with <subj> Paraguay <obj> shares border with <subj> Brazil <obj> shares border with <triplet> Brazil <subj> Bolivia <obj> shares border with