中生代郭公甲总科昆虫的系统分类及其与环境的协同演化关系

郭公甲总科昆虫是鞘翅目中物种较为丰富、习性十分复杂多样的类群，也是一类重要的经济害虫。该总科昆虫中高级阶元的系统发育关系一直存在较大争议，早期演化历史还不清楚，化石类群缺少统一的分类体系。中生代作为郭公甲总科昆虫起源与演化的重要时期，相关地层中产出了许多古老且保存精美的化石标本。本项目拟基于中侏罗世燕辽生物群、早白垩世热河生物群和晚白垩世早期缅甸琥珀中的郭公甲总科昆虫化石，并对比现生类群，对中生代郭公甲总科昆虫进行全面系统地研究：1. 调查中生代郭公甲总科昆虫的种类多样性情况，寻找该时期郭公甲总科昆虫多样性分化的原因和机制；2. 分析郭公甲总科在演化过程中关键特征，特别是触角、口器、足的变化规律，探讨其与动植物的协同演化关系；3. 开展郭公甲总科系统发育研究工作，探讨各科、亚科之间的系统发育关系，并在此基础上对郭公甲总科昆虫历史演化等问题进行探讨。

The superfamily Cleroidea is a diverse group of beetles that exhibits a wide range of natural histories and behaviors, including many stored product pests. However, the phylogenetic relationships within this clade are problematic, early evolutionary history is far from clear and the fossil taxa are lack of assignment. Mesozoic is an important period in the origin and evolution of Cleroidea, which yielded many old and well-preserved specimens. This study aims to investigate the Mesozoic Cleroidea comprehensively and systematically, based on the fossils from the Middle Jurassic Yanliao Biota, the Early Cretaceous Jehol Biota, the earliest Late Cretaceous Burmese amber and the recent species in the following three respects: 1. to investigate the diversity of the Mesozoic Cleroidea and explore the possible diversification mechanisms; 2. to analyze the trend of changes for key characters, especially the antennae, mouthparts and the legs, discuss their coevolution with animals and plants; 3. to analyze the phylogenetic relationships within Cleroidea, and subsequently to discuss its origin and evolution.