The focus of the spraying will be on hopper bands, when the locusts are still wingless.

喷洒主要是在蝗跳的地带上，当时蝗有翅膀。

To the wingless a more arresting phenomenon is their dissimilarity in every particular except shape and size.

对于有翅膀的人类来说，一更加饶有趣味的现象，却是这两地方除了形状大小外，在每一方面都截然不同。

When the resulting offspring hatch, they bear little resemblance to their parents; they're smaller, wingless, eyeless, and sterile.

当由此产生的后代孵化时，它们与父母几乎有相似处；它们更小，有翅膀，有眼睛，而且不育。

The shattered windshield had been lowered flat and a piece of chrome from the radiator stuck up like a pennant between the two wingless front tyres.

破碎的挡风玻璃被压平， 散热器上的一块铬合金像三角旗一样竖立在两有翼子板的前轮胎间。

These several considerations make me believe that the wingless condition of so many Madeira beetles is mainly due to the action of natural selection, combined probably with disuse.

这几点考虑让我相信， 这么多马德拉甲的无翅状况主要是由于自然选择的作用， 可能与废弃相结合。