一种蛾的幼虫,螟蛉
Bollworm \Boll"worm`\, n. (Zo["o]l.)
The larva of a moth ({Heliothis armigera}) which devours the
bolls or unripe pods of the cotton plant, often doing great
damage to the crops.
bollworm
n : any of various moth caterpillars that destroy cotton bolls