Elachistocleis piauiensis is a species of frog in the family Microhylidae. It is endemic to Brazil. Its natural habitats are dry savanna, moist savanna, subtropical or tropical dry shrubland, subtropical or tropical dry lowland grassland, intermittent freshwater marshes, arable land, pastureland, rural gardens, and ponds. It is threatened by habitat loss. References piauiensis Endemic fauna of Brazil Amphibians of Brazil Taxonomy articles created by Polbot Amphibians described in 1983 Taxa named by Ulisses Caramaschi