This is a list of butterflies of the Amazon River basin and the Andes. The Amazon River basin may be the most speciose region for butterflies. Nine countries have territory in the Amazon River basin or immediately adjoin this region: Brazil, Bolivia, Peru, Ecuador, Colombia, Venezuela, Guyana, Suriname, and French Guiana. The Andes extends from north to south through seven South American countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina. The fauna of the Andes is also diverse. Both regions have many endemic species. South America as a whole constitutes the Neotropical ecozone. Habitats in these two regions are very various and include Amazon rainforest, Atlantic forest, Los Llanos grasslands, Puna grassland and Valdivian temperate rain forest. Peru east of the An