Did you know that Iowa has nine species of bats? 10/25/2018 8:24:00 AM View Count 26742 Two of the most common bats in Iowa are the little brown bat (Myotis lucifigus) and the big brown bat (Eptesicus fuscus). Like all of the bats in Iowa, they are insectivores and are critical for keeping Iowa’s insect populations in check.