Horse flies

Synoptic List of the Tabanidae (Diptera) of the Great Smoky Mountains National Park

Haddow, Andrew D., David J. Paulsen, and John K. Moulton. "Synoptic List of the Tabanidae (Diptera) of the Great Smoky Mountains National Park." Proceedings of the Entomological Society of Washington 114, no. 1 (2012): 125-141.