Any of numerous insects of the order Lepidoptera, generally distinguished from butterflies by their nocturnal activity, hairlike or feathery antennae, stout bodies, and the frenulum that holds the front and back wings together.

• 蛾任一种灰色鳞翅目昆虫，一般在夜间活动，长有毛发状或被羽毛覆盖的触角以及短粗的躯体，还生有将前后翅膀连在一起的翅缰，并以此特征与蝴蝶相区别