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 euphor- biae (Thomas), Metopolophium dirhodium (Walker), Myzus persicae (Sulzer), Rhopalosi- phum 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. Un breve resumen de características taxonómicas, hospederos usuales, y distribución dentro de los Estados Unidos son dados para cada especie. Aphis craccivora Koch, Aphis fabae Sco- poli, Aphis gossypii Glover, Aphis maidiradicis Forbes, Hysteroneura setariae (Thomas), Ma- crosiphum euphorbiae (Thomas), Metopolophium dirhodium (Walker), Myzus persicae (Sulzer), Rhopalosiphum maidis (Fitch), Rhopalosiphum padi (L.), Sipha flava (Forbes), Schizaphis graminum (Rondani), y Sitobion avenae (Fabricius) son incluidos en este trabajo. Claves pictóricas y dicotómicas son incluidas para apoyar al personal encargado de detectar, identificar, y controlar los áfidos asociados con el maíz algodón en los Estados Unidos.