我国晚中生代针尾类（膜翅目）昆虫化石研究

膜翅目针尾部昆虫与人类关系密切，关于它的起源、演化与现代地理分布格局的形成都是当今昆虫学的研究热点。但由于化石材料的缺乏，人们对这些问题的了解还很肤浅。本项目基于我国丰富的中生代晚期针尾类昆虫化石，在详细的分类学研究基础上，结合已经发表的资料，围绕上述热点问题开展研究。本研究将对针尾部基干类群- - 拟肿腿蜂科Bethylonymidae获得更深入的了解，并明确它与姬蜂总科和细蜂型的系统关系；很可能追索到更古老的针尾类化石。建立针尾类化石数据库并进行数据分析，将揭示针尾类早期辐射的形式和规模；结合中生代以来地球板块构造演化史，对针尾类现代地理分布格局的形成过程获得初步的认识。另外，对伴生的其他昆虫类群在分类学、演化和埋葬学研究上也将取得一些进展。

The Aculeata (Insecta: Hymenoptera: Apocrita) is closely related to human beings.Its origin and evolution, as well as the formation of its modern geographic distribution, are hot issues in entomology. However, knowledge about these aspects is quite inadequate due to the insufficient collection and study of fossils. Recently abundant insect fossils including aculeates have been discovered from the Late Mesozoic strata in China. In this present study we will focus on the above hot issues and create a database based on a detailed taxonomy of these Mesozoic aculeates and on the reported fossil aucleates all over the world. The stem-group of the Aculeata, the Late Mesozoic family Bethylonymidae, will be much better understood than before and its phylogenetic relationship with Ichneumonoidea and Proctotrupomorpha will be answered. The database analysis will reveal the mode and scale of the early radiation of the Aculeata, and enalbe us to have a sketchy understanding of the formation of its modern geographic distribution. Meanwhile, this program will also make some progress in the taxonomy, evolution and taphonomy of some other associated insects.