It is an apterous insect.

它是一种无翅昆虫。

In some species, such as aphids, the flightless morph lacks wings and is called the apterous morph.

一些昆虫种类，如蚜虫，出现无翅个体，被称为无翅型。

There was a close genetic relationship between the fundatrix (apterous), virginoparae (apterous) and virginoparae (alate) in the green peach aphid.

干母、干雌和迁移蚜之间的遗传关系最近。