日本扁蚜族系统分类与支序系统学研究（半翅目：蚜科：扁蚜亚科）

日本扁蚜族蚜虫是半翅目蚜科的重要类群，形态特征极为特殊，并且具有寄主转换、分泌蜡质、形成虫瘿及产生兵蚜等特点。我国至今未对日本扁蚜族开展过系统的分类学研究，该类群内部的系统发育关系也尚未得到全面清晰的解析。因此，开展中国日本扁蚜族系统厘定并重建其系统发育关系十分必要。本项目拟从系统分类、物种多样性、区系组成、系统发育关系等层次对中国日本扁蚜族进行研究。采集、整理、鉴定中国日本扁蚜族标本，描述物种形态特征，建立标本、物种与地理分布数据库；掌握物种多样性特点，描述区系组成与特点；基于形态与生物学特征构建支序系统树，阐明族内系统发育关系。中国日本扁蚜族的系统分类研究是我国蚜虫系统学研究的重要内容，也是世界蚜虫多样性和区系研究的重要组成部分；通过支序分析重建该族系统发育框架，不仅能够为系统分类研究提供理论指导，而且对于未来结合分子数据深入探讨该类群的系统发育关系与关键性状的演化历史具有重要意义。

The tribe Nipponaphidini (Hemiptera: Aphididae) is a clade of extraordinary aphids characterized by unique and fascinating morphological and biological characteristics (i.e. host alternation, secreting wax, gall formation, and producing soldiers). Up to now, the taxonomy of Chinese Nipponaphidini has never been systematically studied, and few studies have explored its phylogenetic relationships. This project intends to investigate Chinese Nipponaphidini from aspects of taxonomy, species diversity, fauna composition, and phylogeny. The main goals of this project are to collect, identify, and describe the specimens of Nipponaphidini species in China, to build databases of specimen, species, and geographical distribution, to describe the species diversity and fauna composition, and to reconstruct the phylogenetic intratribal relationships using morphological and biological data. Taxonomic study of Chinese Nipponaphidini is an important part of the systematic study of aphid species in China and worldwide. Reconstruction of the phylogeny by morphological cladistic analysis is also very valuable. It can provide guidance for taxonomic study, and it is very helpful for future phylogenetic study based on molecular and morphological data and for investigating the evolutionary history of important characters.