夜蛾科为鳞翅目中最大的一科,一般中型或大型蛾子,少数小型,形态变化很大,大多在夜间活动,体通常为灰色、灰褐色等,少数体鲜艳。成虫头部大多具有发达的口器、喙多发达,静止时喙卷缩,少数喙短小;下唇须普遍存在,向前或向上伸,少数向上弯至后胸;复眼大,半球形,少数呈肾形,大多具有单眼;额骨化很强、额突起的形状有许多变化;触角丝状或双栉状。胸部有毛或鳞毛,中足胫节有一对距,后足胫节有二对距;翅的斑纹丰 Noctuidae is the largest family Lepidoptera, a general medium or large moths, a small number of small, morphological changes, mostly at night activities, the body is usually gray, brown, etc., a few brightly colored. Most of the adult head with developed mouthparts, more developed beak, beak trimming at rest, a small beak short; lower lip to be ubiquitous, forward or upward extension, a few upward bend to the posterior chest; compound eye large, hemispherical, a few Renal shape, mostly with monocular; Frontal ossification is strong, the amount of the amount of protrusions have many changes in shape; antennae filiform or double-row. Chest hairy or scale hair, midfoot tibia with a pair of pitch, hind tibia with two pairs of pitch; wing mark abundance