1d83ea69___Publications___UGA_Extension__Symptom_s__of_Damage
[Insect] Corn root aphid [Description of insect] About 1/16 inch long or less, almost spherical, bluish-green to gray-green in color; located on roots; always accompanied by cornfield ants. [Symptom(s) of Damage] 
Plants wilted, stunted; numerous ants obvious
Georgia Corn Diagnostic Guide | Publications | UGA Extension
Symptom(s) of Damage