尺蛾科多中小型,体细长而翅宽大,静止时四翅平展。头部毛隆发达,触角一般比前翅短,有线状、纤毛状、锯状、栉状或双栉状等,喙多发达,少数退化,下唇须发达,前伸或向上。前翅M2居中或近M1,无1A,2A多具基叉,R4、R5共柄,多数有径付室;后翅Sc+R1与Rs在中室中部以内接近或并接,M2居中或退化,无1A、3A微弱或欠缺,翅缰发达,少数退化。足细长,后足胫距1或2对。腹部有鼓膜听器位于腹基部气门下方。有的雌蛾翅退化或无。尺蛾科是一个大科,世界上已知约一万二千种,我国记载约一千二百多种。我所馆藏的 Moth moth multi-small, slender and winged, still when the four wings flat. Head hairy hair is developed, the antennae is generally shorter than the front wings, linear, ciliary, saw-shaped, pectinate or double-plicate and so on, more developed beak, a few degenerative, lower lip to develop, advance or upward. The front wing M2 is centered or near M1, with no 1A, more than 2A with a fork, R4, R5 were co-handle, the majority have access to pay room; hind wings Sc + R1 and Rs in the middle of the chamber close to or in the middle, M2 center or degeneration, No 1A, 3A weak or lacking, winged hair developed, a small number of degradation. Foot slender, hind tibia distance 1 or 2 pairs. The abdomen has a tympanic membrane located below the ventral valve. Some female moth wings degeneration or none. The moth family is a large family with about 12,000 species known in the world and about 1,200 species recorded in our country. I have the collection