空心莲子草野螟各虫态的形态学观察  

Morphological observation on all stages of Herpetogramma fuscescens(Warren,1892)(Lepidoptera:Pyralidae)

作　　者：高诗淇[1] 周红春[1] 周方杰[1] 王星[1] 

机构地区：[1]湖南农业大学生物安全科学技术学院,长沙410128

出　　处：《环境昆虫学报》2011年第1期131-134,共4页Journal of Environmental Entomology

基　　金：湖南农业大学青年科学基金项目(08QN15);湖南农业大学大学生科技创新基金项目(2009制作发明类44号)

摘　　要：采用室内观察的方法,使用万能视频成像装置(LY-WN-HP SUPERCCD),对空心莲草野螟Herpetogramma fuscescens(Warren,1892)各虫态的形态学特征进行了系统观察。结果发现:成虫体小型,灰褐色。卵椭圆形,初产时乳白色,块状,外被腊质层。孵化前,部分卵壳分离为白色蜡质外层和棕黄色内层两层。幼虫共5龄,前胸背板骨化,中、后胸背部各具4个圆形斑,排成一列,两侧各具2个圆形斑;腹部各节背部具4个圆形斑,两侧各具3个小圆黑斑,黑斑上均具细长刚毛,气门明显。蛹棕红色,臀刺近锥形,其末端具1分叉短刺。Morphology of all stages of Herpetogramma fuscescens was observed in details in the laboratory using Universal video imaging device（LY-WN-HP SUPERCCD）.The results showed that：Adult small,grayish brown.Eggs oval,arranged in egg massive,creamy white when first laid,outside with the waxy layer.Before hatching,white and waxen outer layer and yelow inner layer were derived from the chorion.The larvae of H.fuscescens had 5 instars,pronotum sclerotized,mesothoracic and metathoracic dorsum with four round spots that in a row,respectively,each side with two round spots;every abdominal segment dorsum with 4 round spots,and each side with 3 small round dark spots that covered with slender setae,spiracle conspicuous.Pupae reddish brown,anal spines nearly conical with a fork short splinter at the apex.

关 键 词：空心莲子草野螟 形态学特征 空心莲子草 

分 类 号：Q969.432.8[生物学—昆虫学]