Data from: Molecular phylogeny of the Taeniapterini (Diptera: Micropezidae) using nuclear and mitochondrial DNA, with a reclassification of the genus Taeniaptera Macquart

DNA molecular data are used to generate a phylogeny for the micropezid subfamily Taeniapterinae. Thirty-two taeniapterine species were sampled, including 10 of the 20 New World genera recognized by Steyskal, as well as one genus formerly treated as a synonym of Poecilotylus Hennig (Hemichaeta Steyskal). Five species from the Micropezinae were included as outgroups. A total DNA dataset of 4705 bp, including mitochondrial genes (12S and cytochrome c oxidase I (COI)) and nuclear coding genes (wingless and CAD), was analysed using maximum parsimony and Bayesian inference. The genus Taeniaptera Macquart was found to be non-monophyletic with respect to the remainder of the Taeniapterini analysed here. Taeniaptera is restricted to the Taeniaptera trivittata Macquart species group, Mitromyia Cresson is resurrected to contain the Taeniaptera grata (Wulp) species group, and Paragrallomyia Hendel is resurrected to contain most species previously considered Taeniaptera. Poecilotylus is recognized as a paraphyletic group awaiting further research.

本研究借助DNA分子数据，构建长足虻科(Micropezidae)瘦长足虻亚科(Taeniapterinae)的系统发育关系。共采样32种瘦长足虻亚科物种，涵盖Steyskal所界定的20个新大陆属中的10个，同时纳入1个曾被视为Poecilotylus Hennig属（即Hemichaeta Steyskal属）同物异名的属。选取长足虻亚科(Micropezinae)的5个物种作为外类群。本研究所用的总长度为4705 bp的DNA数据集，包含线粒体基因（12S及细胞色素c氧化酶亚基I（COI））与核编码基因（无翅基因wingless及CAD基因），并分别采用最大简约法与贝叶斯推断法开展分析。研究结果显示，Taeniaptera Macquart属与本研究纳入分析的其余瘦长足虻族(Taeniapterini)类群并非单系群。据此，本研究将Taeniaptera Macquart属限定为Taeniaptera trivittata Macquart物种群；恢复Mitromyia Cresson属的分类地位，以容纳Taeniaptera grata (Wulp)物种群；同时恢复Paragrallomyia Hendel属的分类地位，以涵盖此前被划归Taeniaptera属的绝大多数物种。Poecilotylus属被界定为并系群，有待后续研究进一步厘清其分类关系。