The Chiroptera are represented in the Pampa by at least 34 species belonging to four families: Phyllostomidae, Noctilionidae, Vespertilionidae e Molossidae. The Phyllostomidae occurring in the Pampa include frugivore, nectarivore/insectivore, carnivore, and sanguinivore species, Noctilionidae includes the fishing bats, Vespertilionidae and Molossidae are exclusively insectivores. Most species present wide distribution ranges in the Neotropics, although some are more restricted to the south of Brazil, such as the Patagonian dwarf bonneted bat Eumops patagonicus and the recently described Myotis pampa.

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