1.Polymorphism(多型多态现象) 3)Alate viviparous female(有翅孤雌蚜) 4)Apterous viviparous female(无翅孤雌蚜) 5)Sexupara(性母)：Wingless or winged; produce sex aphides. 6)Oviparous female(雌性蚜)：Most wingless. 7)Male(雄蚜)：Most winged,.few wingless。.1. Polymorphism (多型多态现象 ) 3) Alate viviparous female (有翅孤雌蚜 ) 4) Apterous viviparous female (无翅孤雌蚜 ) 5) Sexupara (性母): Wingless or winged; produce sex aphides. 6) Oviparous female (雌性蚜): Most wingless. 7) Male (雄蚜): Most winged, few wingless