一、麦蚜的样子成虫有二种。一种是无翅胎生的,老熟的体长三公厘,全体绿色。头稍带褐,触角长,先端呈淡黑色。腹部肥大,末端圆。两个蜜管呈绿色但稍带黑色。腿也呈黑邑。另一种是有翅胎生的,体长较前种为小而细长,腹部黑色,有翅膀。二、运城专区气象概况(月平均) First, the appearance of wheat aphids there are two kinds of adults. One is wingless, mature body length of three millimeters, all green. Head slightly brown, long antennae, avant-garde light black. Abdominal hypertrophy, the terminal circle. Two honey tubes are green but slightly black. Leg also showed black eup. The other is a viviparous embryo, body length smaller than the previous species and slender, abdomen black, with wings. Second, Yuncheng area meteorological profiles (monthly average)