Figure 1

Map of study region. Upper Left: Map of the eastern United States. Right Center: Map of the Great Smoky Mountain National Park, with collection localities from the USNM collections shown (red: P. jordani allopatric localities; blue: P. teyahalee allopatric localities; black: sympatric localities for both species). Lower Left: Map of the study region, with the locations of three geographic transects circled: left = Taywa Creek localities; center: Kephart Prong localities; right:, Heintooga Ridge localities. Allopatric and sympatric localities are designated with the same colors as in the central figure. The boundary of the Great Smoky Mountain National Park is shown, and the light line denotes 1,200 m in elevation.