Revisionary systematics of Nerioidea and Sphaeroceroidea (Diptera)

橙花总科和球蜡总科（双翅目）的修订系统学

• 批准号: RGPIN-2018-04622
• 负责人: Marshall, Stephen
• 金额: $ 4.01万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=690616
• 关键词: Revisionary; systematics; Nerioidea; Sphaeroceroidea; Diptera

The order Diptera is arguably the largest order of living things and is certainly the most important higher taxon in terms of its impact on human health and economy. Despite tremendous advances in Diptera taxonomy over the past decade, as encapsulated in the recent Diptera Manuals (Manual of Central American Diptera, Manual of Afrotropical Diptera), many of the genera, subfamilies and even families of Diptera remain to be adequately defined and most fly species remain to be described. Resolution of this important portion of the planet's biodiversity requires adequate specimen collections; only then can useful monophyletic groups be described and diagnosed. As a result of decades of directed fieldwork and careful specimen curation the University of Guelph Insect Collection now houses over a million Diptera specimens, mostly in the large superfamilies Nerioidea and Sphaeroceroidea. We are thus positioned to review and correct the higher classification of these superfamilies, while identifying and thoroughly revising significant clades or monophyletic subgroups. My students and I have so far discovered and formally described over a thousand new species and several higher taxa, but much remains to be done to combine these disparate components into a cohesive picture of phylogeny and diversity, and to produce a modern classification of these major fly clades. The combination of our unparalleled specimen collection and the taxonomic foundation already completed has provided a sound platform for a team, currently including external collaborators and doctoral students working on different subgroups of the Micropezoidea and Sphaeroceroidea, to monograph major parts of these taxa. Both Micropezoidea and Sphaeroceroidea offer enough structural complexity for comparative morphology to provide the basis for descriptions, thoroughly illustrated diagnoses and phylogenetic hypotheses. Species and major clade concepts generated by morphological analyses will be tested with cytochrome oxidase one sequences (“barcodes”) and then used as the basis for the development of more broadly integrated molecular/morphological phylogenies. Although the basis of our work is careful comparative morphology with an emphasis on complex internal character systems, molecular, ecological and morphological data will be carefully compared and integrated, with the results cast in contexts of zoogeography and conservation biology.

双翅目命令可以说是生物的最大顺序，就其对人类健康和经济的影响而言，当然是最重要的更高分类单元。尽管在过去的十年中，双翅目分类法取得了巨大进步，如最近的双翅目手册（中美洲双翅目手册，非洲杂质双翅目手册）所封装的，但许多属，亚科，甚至是双翅目家族仍然适当地定义，并且仍然有适当的固定物种。解决这个地球生物多样性的这一重要部分需要足够的标本收集；只有这样，才能描述和诊断有用的单系组。由于数十年的定向野外工作和仔细的标本策展，圭尔夫大学的收集收集现在拥有超过100万个双翅目标本，主要是在大型超级家族的Nerioidea和Sphaeroceroidea中。因此，我们可以审查和纠正这些超家族的更高分类，同时识别并彻底修改了重要的进化枝或单系亚组。到目前为止，我和我的学生已经发现并正式描述了一千种新物种和几个更高的分类单元，但是将这些不同的组件结合到系统发育和多样性的凝聚力图中还有很多要做的事情，并对这些主要飞行进化片进行现代分类。我们无与伦比的标本收集和已经完成的分类基础的结合为一个团队提供了一个合理的平台，包括目前在Micropopzoidea和Sphaeroceroidea的不同亚组的外部合作者和博士生中，为这些分类单元的主要部分。 Micropezoidea和Sphaeroceroidea都提供了足够的结构复杂性，以提供比较形态，从而为描述，彻底说明诊断和系统发育假设提供了基础。形态分析产生的物种和主要进化枝概念将通过细胞色素氧化物ONE序列（“条形码”）进行测试，然后用作开发更广泛整合的分子/形态系统的基础。尽管我们工作的基础是仔细的比较形态，重点是复杂的内部特征系统，但分子，生态和形态学数据将被仔细比较和整合，并在动物地理学和保护生物学的情况下进行结果。