.31 眼发达：有翅：前失长。外很斜 无：前超母 .32 体中型中室 npida 。前、后的M,脉因中基部与M接近：前外锋近项角处常有容月形四陷 -蚕银科Bombycidac 三、常见科的 处角型为其鸡公长。单装头：日香理化：想彩指货：中室内M联主千2分又：臣节无距。药用种须：虫草写ePB: armoricans Oberthur. 人经猫分线修虫 e《图51A-B) 部共柄狼接近。劲虫白或粉红色。气门形 图51麦蛾科 A后 触角柄节有师毛，静息时向的修：烟较失长，前翅后外缘的毛长，休息时突出如商尼拔：后烟M,脉和M,酥常共柄。幼虫细长，常绿色，取是细。重要件 6.栽绩科Psychidae(图53AB)29 有眼罩；下唇须小而下垂；静息时，触角侧后伸；后翅线形··············································· 潜蛾科Lyonetiidae - 无眼罩；下唇须发达，上举；静息时，触角前伸；后翅M1脉与M2脉靠近或共柄········································· ······························································································································································· 菜蛾科 Plutellidae 30 有毛隆；有单眼；触角多线状，偶有栉状；翅缰发达；前翅外缘较平直···························· 卷蛾科Tortricidae - 无毛隆；缺单眼；触角多双栉状或栉状；无翅缰或翅缰退化；如触角为线状（锯齿状）和翅缰发达，则触角末端弯曲呈小钩状；前翅外缘倾斜 ············································································································································································· 31 31 触角末端弯曲成小钩状；喙发达；有翅缰；前翅狭长，外缘很倾斜···································· 天蛾科Sphingidae - 触角双栉状；喙退化或缺；无翅缰；前翅宽阔··································································································· 32 32 体大型；翅中室区常有透明斑································································································ 天蚕蛾科Saturniidae - 体中型；翅中室区无透明斑··································································································································· 33 33 前、后翅的M2脉与M3脉基部接近或共柄，后翅有1或多条肩横脉························ 枯叶蛾科Lasiocampidae - 前、后翅的M2脉居中或基部与M1脉接近；前翅外缘近顶角处常有弯月形凹陷············································· ··························································································································································· 蚕蛾科Bombycidae 三、常见科的主要特征和代表种类 （一）外孔次目Exoporia 1．蝙蝠蛾科Hepialidae（图50A～B） 触角短，雌虫为念珠状，雄虫为栉齿状；单眼缺；口器退化；翅轭指状；中室内M脉主干2分叉；胫节无距。药用种类：虫草蝙蝠蛾Hepialus armoricans Oberthur。 图50 鳞翅目分科 A.蝙蝠蛾雄虫；B.蝙蝠蛾雌虫 （二）双孔次目Ditrysia 2．麦蛾科Gelechiidae（图51A～B） 触角线状；前翅广披针形，A脉1支，基部分叉，R4脉与R5脉共柄，R5脉达顶角前缘；后翅外缘常向内凹入，顶角尖突，后缘有长缘毛，Rs脉与M1脉基 部共柄或很接近。幼虫苍白或粉红色，气门圆形；肛门上常具臀栉；趾钩双序缺环或二横带。重要种类：马铃薯块茎蛾Phthorimaea operculella (Zeller)。 图51 麦蛾科 A.头；B.前后翅脉序图 lp下唇须；prb喙 3．细蛾科Gracillariidae 触角等于或长于前翅；下唇须3节，常向前伸或上举；翅极狭，端部尖锐，有长缘毛；前翅常有白斑和指向外的V形横带，中室直长，占翅长度2/3～ 3/4；后翅无中室。幼虫体扁平，胸足和腹足一般退化，如有腹足则只有4对，第6腹节的腹足退化。重要种类：荔枝蒂蛀虫Conopomorpha sinensis Bradley。 4．潜蛾科Phyllocnistidae（图65B） 触角丝状，第1节很宽，下面凹入，能盖住部分复眼，叫做眼罩；前翅披针形，脉序不完全，中室细长，顶端有几条脉合并；后翅线形，有长缘毛，Rs脉达翅 顶。幼虫体扁，无单眼，胸足和腹足退化。重要种类：柑橘潜叶蛾Phyllocnistis citrella Staint。 5．菜蛾科Plutellidae（图52A～B） 触角柄节有栉毛，静息时向前伸；翅较狭长，前翅后外缘的毛长，休息时突出如鸡尾状；后翅M1脉和M2脉常共柄。幼虫细长，常绿色，腹足细。重要种 类：小菜蛾Plutella xylostella L.。 图52 菜蛾科 A.成虫；B.幼虫 6．蓑蛾科Psychidae（图53A～B） 雌雄异形。雌虫无翅幼虫型，终生匿居在袋中。雄虫具翅，翅中室内有M脉主干存在；前翅3条A脉在端部合并为1条；触角栉齿状。幼虫肥胖，胸足发 达，腹足趾钩单序环形，负袋而走。常见种类：大蓑蛾Clania variegata Snellen