【作者】 李志文；

【导师】 游兰韶；

【作者基本信息】 湖南农业大学 ， 农业昆虫与害虫防治， 2003， 硕士

【摘要】 螟黄足盘绒茧蜂复合群由五个种所组成，即螟黄足盘绒茧蜂(Cotesia flavipes)，印度—澳洲地区；大螟盘绒茧蜂(C.sesamiae)，非洲；二化螟盘绒茧蜂(C.chilonis)，日本、中国；芦螟盘绒茧蜂(C.chiloluteelli)，中国；汉寿盘绒茧蜂(C.hanshouensis)，中国。该复合群都是禾本科主要经济作物鳞翅目蛀茎害虫幼虫的聚集性内寄生蜂，在生物防治上具有重要意义。 本文对螟黄足盘绒茧蜂复合群的分类沿革、研究历史、形态特性、生物学特性及其在古典生物防治计划中的应用进行了简要而系统的介绍。特别是对其形态学特征，在前人研究的基础上，对该复合群的雌雄外生殖器进行了深入的研究和比较，并选择了螟黄足盘绒茧蜂复合群5个种和外群侧沟茧蜂Microplitis及荻茧蜂Diolcogaster的25个性状演变系列或复合群5个种和外群螟蛉盘绒茧蜂Cotesia ruficrus、粘虫盘绒茧蜂C.kariyai、粉蝶盘绒茧蜂C.glomerate的24个性状演变系列，通过外群比较法对其进行性状极化，得到两个不同的性状数据矩阵，然后利用Hennig86支序分析软件，按照支序分析的一般原则和方法对性状数据矩阵进行处理，以此来明确螟黄足盘绒茧蜂复合群内各分类单元之间的亲缘关系，并提出了该复合群系统发育关系的假说。研究结果表明：螟黄足盘绒茧蜂复合群是一个单系群；大螟盘绒茧蜂和二化螟盘绒茧蜂亲缘关系靠近，具有共同的假想祖先；芦螟盘绒茧蜂和汉寿盘绒茧蜂亲缘关系靠近，也具有共同的假想祖先；而螟黄足盘绒茧蜂相对独立。在该复合群5个种之间，螟黄足盘绒茧蜂是比较原始的类群，大螟盘绒茧蜂和二化螟盘绒茧蜂次之，芦螟盘绒茧蜂和汉寿盘绒茧蜂是较为进化的类群。更多还原

【Abstract】 The Cotesia flavipes complex is currently considered to include five species: Cotesia flavipes (Cammeron) which occurs in the Indo-Australian region, C.sesamiae (Cammeron) in Africa, C.chilonis [Munakata] in Japan and China, C.chiloluteelli (You et Xiong) in China and C.hanshouensis (You et Xiong) in China. The species of the complex are all gregarious endoparasitoids of lepidopteran stemborers of gramineous plants, and they are very important in classical biological control programs against various cereal stemborers.In the present paper, historical review, morphology, biology and applications of the Cotesia flavipes complex in classical biological control programmes are introduced briefly and systematically. Based on morphological studies (include male genitalia), 25 character transformation series of 5 species of the complex (as ingroup) and 1 species of Microplitis and Dilolcogaster (as outgroup) respectively or 24 character transformation series of 5 species of this complex (as ingroup) and 3 species of the same genera (as outgroup) were selected. Through analysis of character polarity using the method of outgroup analysis, two character data matrixes were obtained. Then through analysis of Hennig86 software based on the method of cladistics, two consensus cladograms were constructed at last. The results of the cladograms indicated that the Cotesia flavipes complex is a monophyletic group and that C.sesamiae and C.chilonis are more closely related, C.chiloluteelli and C.hanshouensis are more closely related, too, C.flavipes is a species to be independed upon above 4 species. It was also founded that among the 5 species of Cotesia flavipes complex, C.flavipes is primitive, C.sesamiae and C.chilonis are primitive secondly, C.chiloluteelli and C.hanshouensis are the relatively evolutive species. In conclution, wo do whatever the relative genus as outgroup or the relative species as outgoup, the results can correctly reflect the relationships among the species of Cotesia flavipes complex.更多还原