中国溪蛉科的分类学研究

项目名称： 中国溪蛉科的分类学研究

项目编号： No.31272352

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 生物科学

项目作者： 刘志琦

作者单位： 中国农业大学

项目金额： 78万元

中文摘要： 溪蛉科是脉翅目中原始类群之一，是脉翅目昆虫由水生到陆生的一个重要的过渡类群，具有重要的进化地位，又是生态系统中宝贵的天敌资源。但是分类研究基础薄弱，很多早期发表的物种需要厘定，一些属的归属还存有很多疑议，亚科和属级阶元的系统发育关系和生物学等知之甚少，分子生物学研究基本为空白，我国溪蛉目前的现有记录与实际还存在很大差距。本课题旨在进一步摸清我国溪蛉的区系组成和地理分布格局；调查掌握常见种的生物学特性；厘定和补充描述已知种，记述新种和记载新记录种，编制其亚科、属、种检索表，完成最新的中国溪蛉科厘定名录，建立中国溪蛉属种资源数据库；利用支序系统学的原理，综合形态、分子生物学和古生物学研究方法，澄清有关属、种地位等疑难问题，进而深入探讨其亚科、属间的系统关系和该类群的起源演化、扩散机制，以填补世界溪蛉科分类研究技术和理论研究的空白，为我国该类群的天敌保护与利用提供科学信息。

中文关键词： 溪蛉科；系统发育；分子系统学；形态学；中国

英文摘要： Osmylidae is a kind of valuable natural enemy resources and one of primitive families in Neuroptera, which represent a key intermediate during the Neuroptera evolution from the aquicolous habitats to the terrestrial ones. But, for a long time, its taxonomic researches have been developed comparatively slowly. Some species published in the early age need be revised, the systematic positions of some genera and suborders haven't been confirmed, and the biology of most osmylids haven't been known. In China, many species haven't been recorded. In this research project, the Osmylidae fauna of China will be enriched by reporting new species to science and new records to China,and some known species which was described deficiently before will redescribed more detailedly, especially, based on the genitalia information. The molecular taxonomic technique will be tested. The phylogenitic relationships within or among some genera will be re-constructed based on the morphological and paleoentomological data. It is hoped that the above results will help greatly to the researches not only on the osmylid's phylogenic relationships, but also on its origin, evolution and dispersal.

英文关键词： Osmylidae；phylogeny；molecular systematics；morphology；China