Gillette, C. P. & Baker, C. F. 1895. A preliminary list of the Hemiptera of Colorado. Bulletin of the Colorado State University Agricultural Experiment Station. 31: 1-137.
Sanborn, C. E. 1904. Kansas Aphididae, with catalogue of North American Aphididae, and with host-plant list. Kansas University Science Bulletin. 3 (1): 1-82.
Fitch, A. 1851. Catalogue with references and descriptions of the insects collected and arranged for the State Cabinet of Natural History, in Fourth Annual Report of the New York State Cabinet of Natural History. Family Aphidae. 42-69.
Patch, E. M. 1923. Family Aphididae. In: Britton, W.E., Guide to the insects of Connecticut. Part IV. The Hemiptera or sucking insects of Connecticut. Bulletin of the Connecticut State Geological and Natural History Survey. 34: 250-256, 290-311, 328-335.