Integrative species delimitation reveals fine-scale allopatric speciation in a good-flying insect: A case study on Cylindera pseudocylindriformis complex (Coleoptera, Cicindelidae)

Alpha taxonomy is fundamental for many biological fields. Delineation of species boundary, however, can be challenging in a species complex, where different species share a similar morphology and diagnostic characters may not be available. In this context, integrative approaches that incorporate molecular and morphological data sets and account for speciation history can be helpful to alpha taxonomy. Different approaches to species delimitation based on different assumptions are complementary, and by integrating the results from multiple approaches we can generate a more reliable and objective taxonomic decision. In this study, we applied three molecular approaches to species delimitation and inferred the demographic history based on an isolation with migration model to test a morphologically based taxonomic hypothesis for the Cylindera pseudocylindriformis complex. We discuss the association between genetic divergence and microhabitat specialization, and we further corroborated that C....阿尔法分类学（Alpha taxonomy）对众多生物学领域而言具有基础性意义。然而，在物种复合群中，不同物种形态相似且缺乏可用的鉴别特征，此时界定物种边界颇具挑战。在此背景下，结合分子与形态学数据集并兼顾物种形成历史的整合分类学方法，可为阿尔法分类学提供助力。基于不同假设构建的物种界定方法各有所长，整合多种方法的研究结果可得出更为可靠且客观的分类学判定。本研究采用三种分子物种界定方法，并基于隔离与迁移模型推断种群历史，以检验伪圆柱虎甲复合群（Cylindera pseudocylindriformis complex）基于形态学提出的分类学假说。本研究探讨了遗传分化与微生境特化之间的关联，并进一步证实了C.……