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Phylogeny and classification of the genus-group taxa of Loxandrina (Coleoptera, Carabidae, Abacetini)
Deutsche Entomologische Zeitschrift ( IF 1.3 ) Pub Date : 2020-09-02 , DOI: 10.3897/dez.67.55985
Kipling Will

Bayesian and parsimony phylogenetic analyses of combined and partitioned datasets of molecular (partial sequences of 28S, wg, COI, and CAD) and morphological (51 characters of adults) data for exemplar taxa of five outgroup and 76 ingroup abacetine carabids resulted in a monophyletic Loxandrina Erwin & Sims, 1984 that is split into Australian and American clades. The genus Loxandrus LeConte, 1853 as previously delimited is not monophyletic relative to numerous genus-level taxa in Abacetini Chaudoir, 1873 and is restricted to a subgenus of North American species. A reclassification and nomenclatural changes for the subtribe that are consistent with the phylogeny are provided. Three genera are removed from Loxandrina: Aulacopodus Britton, 1940 moved to Pterostichini Bonelli, 1810; Cosmodiscus Sloane, 1907 and Tiferonia Darlington, 1962 moved to Abacetina. Based on the phylogenetic relationships and nomenclatural priority only four genera are recognized in Loxandrina: Cerabilia Laporte, 1867, Zeodera Laporte, 1867, Pediomorphus Chaudoir, 1878, and Oxycrepis Reiche, 1843. All other previously recognized genera are treated as subgenera. The classification change created eight secondary homonyms that are resolved by the proposal of the following: Oxycrepis gebi, replacement name for O. balli (Straneo, 1993); O. amatona, replacement name for O. matoana (Straneo, 1993); O. xiproma, replacement name for O. proxima (Straneo, 1993); O. rasutulis, replacement name for O. suturalis (Straneo, 1993); O. laevinota, replacement name for O. laevicollis (Bates, 1871); O. arvulap, replacement name for O. parvula (Straneo, 1951); O. noaffine, replacement name for O. affinis (Straneo, 1991); O. alutona, replacement name for O. notula (Tschitschérine, 1901). An overview of the morphological characteristics and diagnostic features of Loxandrina taxa is provided. A key and habitus images are provided for identification of genera and subgenera. The possible historical biogeography of the group is discussed in light of their phylogenetic relationships and past geological events.

中文翻译:

Loxandrina(鞘翅目,Carabidae,Abacetini)属群分类群的系统发育和分类

对 5 个外群和 76 个内群 abacetine carabids 的示例性分类群的分子(28S、wg、COI 和 CAD 的部分序列)和形态学(成虫的 51 个特征)数据的组合和分区数据集的贝叶斯和简约系统发育分析导致单系 Loxandrina Erwin & Sims,1984 年,分为澳大利亚和美国分支。先前划定的 Loxandrus LeConte 属,1853 年与 1873 年 Abacetini Chaudoir 中的众多属级分类群不是单系的,并且仅限于北美物种的一个亚属。提供了与系统发育一致的亚部落的重新分类和命名变化。从 Loxandrina 中移除了三个属:Aulacopodus Britton,1940 年移至 Pterostichini Bonelli,1810 年;Cosmodiscus Sloane,1907 年和 Tiferonia Darlington,1962 年搬到 Abacetina。根据系统发育关系和命名优先顺序,在 Loxandrina 中仅识别了四个属:Cerabilia Laporte,1867、Zeodera Laporte,1867、Pediomorphus Chaudoir,1878 和 Oxycrepis Reiche,1843。所有其他先前识别的属都被视为亚属。分类变化产生了八个次要同音异义词,这些同音异义词由以下提议解决:Oxycrepis gebi,O. balli 的替代名称(Straneo,1993);O. amatona,O. matoana 的替代名称(Straneo,1993);O. xiproma,O. proxima 的替代名称(Straneo,1993);O. rasutulis,O. suturalis 的替代名称(Straneo,1993);O. laevinota,O. laevicollis 的替代名称 (Bates, 1871);O. arvulap,O. parvula 的替代名称(Straneo,1951);O. noaffine,O. affinis 的替代名称(Straneo,1991);O. alutona,O. notula 的替代名称(Tschitschérine,1901)。提供了 Loxandrina 分类群的形态特征和诊断特征的概述。提供了关键和惯习图像,用于识别属和亚属。根据他们的系统发育关系和过去的地质事件讨论了该群体可能的历史生物地理学。
更新日期:2020-09-02
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