新锹甲属是极能彰显锹甲科昆虫科研价值的优秀代表。多数种的形态复杂，种间差别小、种内变异大、亚种分化多，是研究物种分化机制的良好素材；且地理分布有特点，70%的世界已知种都栖息于东亚亚热带，在中国大陆、台湾和日本南部呈间断分布格局，可作为研究中国与相邻岛屿昆虫地理格局演化的理想生物。本研究以东亚新锹甲属为对象，选择线粒体及核基因联合标记其分子谱系，在整合分析这些分子数据与已积累的形态、地理分布、化石、古今地理、气候变迁等数据的基础上，重建该属的系统发育关系、探明其种间及种下的亲缘谱系，揭示其在东亚的物种分化机制，阐释其现有间断地理格局的演化机理。相关结果不仅将切实解决新锹甲属分类中的疑难问题，也将有助于深入剖析锹甲科这一节点类群的进化，为全面认识甲虫的多样性形成、理解东亚及东洋界昆虫区系演变提供更多科学参考，并为开展这类观赏昆虫的生态保育提供必要的基础数据。

Neolucanus is an outstanding example to demonstrate significantly scientific value of lucanid beetles process. Most of them have sophisticated morphology with the highly interspecific similarity, greatly intraspecific variation and numerous subspecies division. In virtue of these traits, neolucanid beetles are perfectly adapted for discovering speciation mechanism. Also, about 70% of the known species in the world inhabit subtropical zones in East Asia with a distinctly disjunct distribution among China mainland, Taiwan and Southern Japan, which features indicate they could be ideal materials for studying the insect biogeography in this region. In this project, neoluanid beetles in East Asia are selected as subjects to reveal their speciation mechanism and explain why they are presented the current biogeographical pattern. Five genes are sequenced for carrying out the phylogeographic work. An integrated approach, in which the molecular data and other data obtained previously of morphology, fossil, historic geography, geology and climate are analyzed comprehensively, is applied to reconstruct the phylogeny tree, clarify the phylogenetic lineages among the different populations. The results would be helpful to interpret the problematic species group, to deeply explore the evolution of Lucanidae as a node group of Coleoptera and to explian the mechanisms of beetles' speciation. In addition, all the data can be used to launch conservation work as these beetles are so popular but easy to be threatened in the field.