Large brown aquatic larva of the dobsonfly ; used as fishing bait .

鱼蛉的大型褐色水栖幼虫；用作鱼饵。

The large , brownish aquatic larva of the dobsonfly , often used as fishing bait .

具角鱼蛉一种大型的，褐色蛇蜻蜓的水生幼虫，常用作钓饵。