DistributionRead full entry
Range DescriptionThis species is endemic to the United States. Its range includes southeastern Nebraska, southern Iowa, western Illinois, eastern Kansas (Collins 1993), Missouri (Johnson 2000), eastern Oklahoma, Arkansas (Trauth et al. 2004), northern Louisiana (Dundee and Rossman 1989), and northeastern Texas (Werler and Dixon 2000), with an isolated population in southwestern Wisconsin (Vogt 1981); populations in northeastern Louisiana and adjacent southeastern Arkansas appear to be isolated from the main range (Ernst et al. 2003). Range is west of the Mississippi River except in Illinois and Wisconsin.