^Stone, A. (1938). "The horseflies of the subfamily Tabanidae of the Nearctic Region". U.S. Department of Agriculture Miscellaneous Publications. 305: 171.
^ Burger, J. F. (1995). "Catalog of Tabanidae (Diptera) in North America north of Mexico". International Contributions on Entomology. Associated Publishers. 1 (1): 1–100.