Taxonomy and phylogenetic analysis of the South American genus Petrichus Simon (Araneae: Philodromidae) provide new insights into the running crab spiders’ phylogeny

IF 1.8 2区生物学 Q3 EVOLUTIONARY BIOLOGY

Invertebrate Systematics Pub Date : 2022-05-04 DOI:10.1071/IS21068

Mariana Griotti, Cristian J. Grismado, S. Roig-Juñent, M. Ramírez

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引用次数: 2

Abstract

Abstract. The systematics of Philodromidae is far from complete, especially for the Neotropical genera. Among these, Petrichus Simon, 1886 is a poorly known genus restricted to arid and semi-arid environments of South America. In this work, we performed a total-evidence analysis to assess the phylogenetic relationships of Petrichus and revised the taxonomy. Petrichus is monophyletic and closer to Titanebo and the New World Ebo. Within Petrichus, two clades are obtained: the Eremean Clade, containing five species displaying a Neotropical distribution; and the Patagonian Clade, with the seven species inhabiting southern South America. Our results also support a previous hypothesis on the phylogenetic relationships within Philodromidae. Thanatini is monophyletic and includes Fageia and Berlandiella, although this is not statistically supported, whereas Philodromini emerges as paraphyletic. We propose Philodromini be expanded to contain all genera having eyes on tubercles analysed in this work plus the closely related Halodromus, whereas the circumscription of Thanatini should await future phylogenetic analyses with new evidence. As for taxonomic proposals, we synonymise Bacillocnemis Mello-Leitão, 1938 with Petrichus, Petrichus ornatus Schiapelli & Gerschman, 1942 and P. luteus (Nicolet, 1849) with P. junior (Nicolet, 1849), P. lancearius Simon, 1905 with P. tullgreni Simon, 1902; we transfer P. corticinus Mello-Leitão, 1944 to Misumenoides Pickard-Cambridge, 1900 (Thomisidae); and P. fuliginosus (Nicolet, 1849), P. cinereus Tullgren, 1901, P. sordidus Tullgren, 1901 and P. zonatus Tullgren, 1901 are regarded as nomina dubia. In total, 13 species are recognised for the genus, of which four are new (described by Griotti & Grismado): P. spira, from western Argentina, P. patagoniensis, from south-western Argentina, P. roigjunenti, from Argentina and Chile and P. eremicus, from north-central Chile. ZooBank: http://zoobank.org/References/1220255e-6431-45c2-adfe-ed58d1f89b17

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南美奔蟹蛛属的分类和系统发育分析为研究奔蟹蛛的系统发育提供了新的思路

摘要Philodromidae的系统学还很不完整，尤其是在新热带属。其中，Petrichus Simon，1886是一个鲜为人知的属，仅限于南美洲的干旱和半干旱环境。在这项工作中，我们进行了全面的证据分析，以评估Petrichus的系统发育关系，并修改了分类学。Petrichus是单系的，更接近Titanebo和新大陆Ebo。在Petrichus中，获得了两个分支：Eremen分支，包含五个表现出新热带分布的物种；巴塔哥尼亚支，有七个物种栖息在南美洲南部。我们的研究结果也支持了先前关于Philodromidae内部系统发育关系的假设。Thanatini是单系的，包括Fageia和Berlandiella，尽管这在统计上没有得到支持，而Philodromini则是副系的。我们建议将Philodromini扩大到包括所有关注本工作中分析的结节的属，以及密切相关的Halodormus，而Thanatini的范围应等待未来的系统发育分析和新的证据。关于分类学建议，我们将Bacillocnemis Mello Leitão，1938年与Petrichus同义，Petrichus ornatus Schiapelli&Gerschman，1942年与P.luteus（Nicolet，1849）与P.junior（Nicolet）同义，P.lancerius Simon，1905年与P.tullgreni Simon同义，1902年；我们将P.corticinus Mello Leitão，1944年转移到Misumenides Pickard Cambridge，1900年（Thomisidae）；和P.fuliginosus（Nicolet，1849），P.cinereus Tullgren，1901，P.sordidus Tullgreen，1901和P.zonatus Tullglen，1901被认为是名词dubia。该属共有13个物种，其中4个是新物种（由Griotti&Grismado描述）：P.spira，来自阿根廷西部，P.patagoniensis，来自阿根廷西南部，P.roigjunetti，来自阿根廷和智利，P.eremicus，来自智利中北部。ZooBank：http://zoobank.org/References/1220255e-6431-45c2-adfe-ed58d1f89b17

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来源期刊

Invertebrate Systematics 生物-动物学

CiteScore

4.30

自引率

9.10%

发文量

审稿时长

>12 weeks

期刊介绍： Invertebrate Systematics (formerly known as Invertebrate Taxonomy) is an international journal publishing original and significant contributions on the systematics, phylogeny and biogeography of all invertebrate taxa. Articles in the journal provide comprehensive treatments of clearly defined taxonomic groups, often emphasising their biodiversity patterns and/or biological aspects. The journal also includes contributions on the systematics of selected species that are of particular conservation, economic, medical or veterinary importance. Invertebrate Systematics is a vital resource globally for scientists, students, conservation biologists, environmental consultants and government policy advisors who are interested in terrestrial, freshwater and marine systems. Invertebrate Systematics is published with the endorsement of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Australian Academy of Science.