距甲科Megalopodidae是叶甲总科Chrysomeloidea里取食植物茎干、叶片或花粉的一个较原始的类群，其对寄主植物的专一性很强，部分距甲为林业害虫。我国距甲科已知2亚科3-4属56种。中国距甲科下属间和种间的分类界定、部分物种的有效性问题亟待解决。因标本不易获得、研究基础薄弱，致使距甲科的研究工作断续多年，至今仍无全面修订及相关专著问世。本项目将以掌握距甲的生物学习性为标本采集的突破点，利用包括外部形态、雌雄外生殖器特征在内的比较形态学与DNA分子鉴定相结合的方法，试图解决距甲科内的分属、分种问题，研究结果也将为农林业防控距甲科提供基础数据。

The family Megalopodidae is a relative primary group in superfamily Chrysomeloidea. It comprises taxa feeding on stem, leave and pollen of specialized host plant. Currently, there are 56 described species belonging to three to four genera in two subfamilies in China. Some species are forestry pests. Due to the shortage of available specimens and limited research efforts, after decades of systematic study of Chinese Megalopodidae, the systematics and taxonomical identification of this taxon are still not well resolved and there is no published monograph yet. The determination of genera and classification of species in this family are urgently required. In this project, we propose a classification revision of Chinese Megalopodidae at generic and specific levels by using comparative morphology (including external morphology and male and female external genitalia morphology) and DNA evidence. Their biological habit, especially their specialization relationship with plant host will be also investigated to better understand their lifecycles. The results of this project will provide basic data to enhance the pest control management.