在谱系地理学的研究中，对于类群和分布区的研究不均衡：对于半翅目昆虫的整体研究相对较少；对于分布区域则缺乏对全球范围的整体研究。原花蝽属世界性分布，分类及分布区研究深入，可作为全球范围谱系地理学理想的研究材料。本研究拟选取原花蝽属全部种类为实验材料，以线粒体基因COI，16S rDNA，Cyt b以及核基因ITS-2全长序列为分子标记开展谱系地理学研究，追溯该类群的起源历史与分化原因。本研究结果可为该属合理划分种团提供分子依据，为属内种间的系统发育关系提供有利证据，为世界范围半翅目昆虫的谱系地理研究增加数据。

The number of phylogeographical studies is not evenly distributed among global regions and taxonomic groups. There are only a few examples of phylogeographical studies based on Hemiptera (Insect) and a small proportion of studies considered on global scale. The genus of Anthocoris is distributed worldwide. The classification and the distribution of the Anthocoris species had been well studied. It could be as the ideal materials for the worldwide phylogenographic research. In this study, the molecular markers of 16S rDNA, Cyt b, Cytochrome oxidase subunit I (COI) and ITS-2 gene were employed to analyze the evolutionary history and colonization routes of the Athocoris. This study could provide the molecular evidence for the species group division and the phylogeny of the species relationship in the Anthocoris. This study also increase the data of the worldwide phylogeographic studies of the Hemiptera (Insect).