T. watsoni is found in extreme coastal Georgia, much of Florida and the southern tip of Texas. The am. line is typically fairly straight whereas in
atrifascialis it is angled outwardly below the cell giving the am. band a more constricted appearance. See Barnes & McDunnough (1917), p.
220 and pl.
18, fig. 6. Most of the MPG images for
watsoni were actually
atrifascialis and have been moved. BOLD likewise has several misplaced
atrifascialis on the species page for
watsoni. - Steve Nanz 6/24/2018