蝗虫用英语可以称为"locust". 这个词来源于拉丁语"locusta", 意思是"蝗虫". 例如:

"A swarm of locusts descended on the crops, devouring everything in their path." (一群蝗虫攻击了农作物, 把一切毁尽。)

"The locust plague devastated the region, causing widespread famine." (蝗灾严重摧残了该地区, 导致广泛的饥荒。)