中国蓟马亚科系统分类研究（缨翅目：蓟马科）

Thripinae, with the most diverse habitat, is the most abundant, and the most widely distributed group of Thripidae in Thysanoptera. Many species in this subfamily are important pests of agroforestry crops, and some species can not only cause direct harm, but also transmit plant viral diseases. At present, the problems need to be resolved urgently in Thripinae are plenty of synonyms, and inconslusive phylogenetic relationship of higher taxa which leads to imperfection of the classification system. This project aims to make a taxonomic study of Thripinae on the basis of preliminary establishment of morphological characteristics database of Thripinae. We try to revise plenty of synonyms, and strive to discover the characteristics that can reflect evolutionary relations and have stable genetic characteristics based on the morphological and molecular evidence. Moreover, we try to clear the phylogenetic relationship of higher taxa in Thripinae based on comparative morphology, cladistic systematics and molecular systematics by constructing the phylogenetic relationships of representing taxa of Thripinae, expecting to analyse the reasonability of the present classification system and even to perfect it. The results will improve the research level of thrips classification in China and provide data for the study on diversity and evolution of Thysanoptera worldwide in future.

蓟马亚科Thripinae是缨翅目Thysanoptera蓟马科Thripidae中种类最丰富、生境最多样、分布最广泛的类群。该亚科很多种类是农林作物的重要害虫，一些种类除可对作物造成直接危害外，还可传播植物病毒病。目前蓟马亚科异名现象严重，高级阶元演化关系尚无定论，导致分类体系不完善，亟待解决。本项目在已初步建立蓟马亚科形态特征数据库的基础上，对中国蓟马亚科昆虫进行系统分类研究。基于形态和分子证据，力求揭示能反映进化关系且具有稳定遗传特性的形态特征，订正异名。运用比较形态学、支序系统学和分子系统学方法，构建蓟马亚科代表类群的系统发育关系，明确蓟马亚科高级阶元的演化关系，分析当前蓟马亚科分类系统的合理性，完善蓟马亚科分类系统。研究结果将提升我国蓟马分类的研究水平，同时为世界缨翅目的多样性及演化研究等提供资料。

项目以中国蓟马亚科为研究对象，对中国蓟马亚科昆虫进行系统分类研究，编制了中国蓟马亚科物种名录，明确了我国蓟马亚科昆虫的物种多样性及区系分布，发现了4个新种，丰富了中国蓟马亚科的分类区系。基于比较形态学，研究了蓟马亚科中美棘蓟马等4种昆虫头部的触角和口器的感器形态、分布和外部形态，推测了各类感器可能的功能，探讨了其在蓟马亚科系统演化中的作用。采用分子系统学方法，基于本研究中得到的美洲棘蓟马等物种的序列和GenBank中已有序列，构建蓟马亚科昆虫代表类群的系统发育关系；将其与基于形态数据构建的系统树进行比较，明确蓟马亚科高级阶元的演化关系，完善蓟马亚科的分类体系。