对宁夏中卫市石炭纪地层中丰富的早期有翅昆虫化石（古翅类：蜻蜓目；复新翅类：古直翅总目、蛩蠊目、古网翅目）和早期全变态昆虫（原鞘翅目、可疑脉翅类等）进行采集，着重开展形态学和分类学研究，查明早期有翅昆虫与早期全变态昆虫的代表类群及环境背景，丰富其物种多样性和形态多样性。对一些重要的形态特征（如口器结构、生殖器结构、前后翅形态变化、翅脉同源性）进行细致的功能形态分析，重点解决早期有翅昆虫翅基结构类型与翅发生的联系。古今结合，比较关键形态学特征与现代类型的演化关系，理解和揭示有翅昆虫的系统发育关系及早期演化历史。为有翅昆虫和全变态昆虫的起源和早期演化研究提供可靠的材料和依据。

Based on abundant and diverse collections of late Carboniferous fossil winged insects (Palaeoptera: Odonata; Polyneoptera: Archaeorthoptera, Grylloblattida,Palaeodictyoptera,) and complete metamorphosis insects (Protocoleoptera, doubtful lacewings) from Zhongwei City, Ningxia, China, this project will perform a series research on classic morphology,taxonomy and biological properties of Carboniferous Pterygota and Holometabola. The proposed research will give a generally scenario of Xiaheyan entomo-fauna and environmental background, and enrich diversity of both species and morphological configuration. The research will carry out functional morphology analysis of some key morphological characters such as the mouthparts, external genitalia, shape of both fore and hind-wings, venation homology,focus on the basemental characters of wing and its articulated model to the thorax by the sclerites.We propose to compare key morphological characters of extinct lineages with major extant Pterygota insects to understand and reveal their phylogenetic relationships and early evolutionary history.All these results will provide more fossil records and reliable evidences for elucidation and reconstruction the natural history of Pterygota and Holometabola.