AERIAL FEEDING APHIDS OF CORN IN THE UNITED STATES WITH REFERENCE TO THE ROOT-FEEDING APHIS MAIDIRADICIS (HOMOPTERA: APHIDIDAE)

A brief summary of taxonomic characters, usual hosts, and distribution within the United States are given for each species. Aphis craccivora Koch, Aphis fabae Scopoli, Aphis gossypii Glover, Aphis maidiradicis Forbes, Hysteroneura setariae (Thomas), Macrosiphum euphorbiae (Thomas), Metopolophium dirhodium (Walker), Myzus persicae (Sulzer), Rhopalosiphum maidis (Fitch), Rhopalosiphum padi (L.), Sipha flava (Forbes), Schizaphis graminum (Rondani), and Sitobion avenae (Fabricius) are included in the present paper. Pictorial and dichotomous keys are included to aid personnel charged with detection, identification, and control of aphids associated with corn in the United States.