中文摘要：

为了探索膜翅目Hymenoptera扁蜂科Pamphiliidae各属之间的系统关系，利用支序分析的原理和方法对扁蜂科的9个属进行属间支序分析，结果表明将扁蜂科划分为腮扁蜂亚科Cephalciinae和扁蜂亚科Pamphiliinae是合理的。现有的分类系统中将扁蜂亚科分为扁蜂族Pamphiliini和脉扁蜂族Neurotomini是合理的，各族的单系性得到证实。扁蜂族是一个单系群，由扁蜂属Pamphilius＋齿扁蜂属Onycholyda＋（丝扁蜂属Pseudocephaleia＋克扁蜂属Kelidoptera）构成；脉扁蜂族只含一个属，独自构成一个单系。现有的腮扁蜂亚科中各族的划分也得到支序分析的证实，腮扁蜂亚科这个单系群由直扁蜂族Caenolydiani＋（华扁蜂族Chinolydini＋腮扁蜂族Cephalciliini）组成，华扁蜂族与腮扁蜂族是姐妹群，共同构成一个单系群。腮扁蜂族是由阿扁蜂属Acantholyda和腮扁蜂属Cephalcia构成的一个单系群。

英文摘要：

The generic relationship of the family Pamphiliidae which is divided into 9 genera is analyzed by means of cladistic analysis. The results of cladistic analysis indicate that it is reasonable to divide Pamphiliidae into two subfamilies： Cephalciinae and Pamphiliinae. Subdividing Pamphiliinae into Pamphiliini and Neurotomini is supported by cladistic analysis. Pamphiliini is a monophyletic group, it consists of Pamphilius ＋ Onycholyda ＋ （Pseudocephaleia ＋ Kelidoptera）; Neurotomini is another monophyletic group, which includes only one genus： Neurotoma. At the same time, the present system of Cephalciinae is supported by cladistic analysis, Cephalciinae is a monophyletic group too, which includes Caenolydiani ＋ （Chinolydini ＋ Cephalciliini）. Monophyletic group of Cephalciliini consists of Acantholyda ＋ Cephalcia.