Any of various insects of the family Cicadidae, having a broad head, membranous wings, and in the male a pair of resonating organs that produce a characteristic high-pitched, droning sound.

• 蝉，知了蝉科中的各种昆虫，有宽大的头部和膜状翅，雄性有一对共鸣器官，发出独特的高音调嗡嗡声