Studies on the phylogeny of the Pamphiliid sawflies (Hymenoptera)

1为丰富以往积累的资料，1992年6月至1994年6月和7月，主要在北海道采集锯蝇类成虫和幼虫。通过比较形态研究，在脉序、下颌、产卵器形状等方面的13个性状被发现有助于在属水平上分析系统发育。利用MacClade(Maddison&Maddison，1992)和PAUP(Swofford，1993)对9个雀科昆虫属的系统发育关系进行了分析，并根据简约准则提出了系统发育关系假说。根据这一假说，Popphiliinae亚科及其组成的两个部落Neurotomini和Pabliliini是单系进化的，而另一个Cephalciinae亚科及其组成的部落Cephalciinae是非单系进化的。它们包括修订韩国的神经瘤属(5种)和海鞘藻属(6种，包括1新种)[参考文献6]，修订硫脚类群(4个东亚种，包括2个新亚种)[参考文献8]，修订Histrio群，包括支序分析(11个全北极种，包括1个新种和1个新亚种)[参考文献10]，修订东亚的木贼属Megaxyela(3个种，包括2个新种)[参考文献3]，日本的Cephalcia属和Neurotoma属各1个新种[参考文献5，9]关于新寄主和幼虫筑巢习性的报告[参考文献1，7]和新的分布记录[参考文献2，4]。

1 Collection of adults and larvae of the Pamphiliid sawflies was made mainly in Hokkaido in June and July, 1992 to 1994, to enrich the previously accumulated material. As a result of comparative morphological studies, 13 characters in the venation, mandible, shape of the ovipositor, etc., have been found useful for analyzing phylogeny at the generic level. Using MacClade (Maddison & Maddison, 1992) and PAUP (Swofford, 1993), phylogenetic relationships among the nine Pamphiliid genera were analyzed and a hypothesis of the relationships was presented based on parsimony criterion. According to this hypothesis, the subfamily Pamphiliinae and its two component tribes, the Neurotomini and Pamphiliini, are monophyletic, whereas the other subfamily Cephalciinae and one of its component tribes, the Cephalciini, are non-monophyletic.2 Part of new findings during the course of the studies heve been published in ten separate papers. They include a revision of Korean species of the genera Neurotoma (five species) and Onycholyda (six species including one new) [reference 6], a revision of Pamphilius sulphureipes group (four East Asian species including two new subspecies) [reference 8], a revision of Pamphilius histrio group, including cladistic analysis (eleven Holarctic species including one new species and one new subspecies) [reference 10], a revision of the Xyelid genus Megaxyela of East Asia (three species including two new) [reference 3], descriptions of one new species each of the genera Cephalcia and Neurotoma from Japan [reference 5,9], reports on new hosts and larval nesting habits [reference 1,7]and new distribution records[reference 2,4].