A monographic revision of the Neotropical dung beetle genus Sylvicanthon Halffter & Martinez, 1977 (Coleoptera: Scarabaeidae: Scarabaeinae: Deltochilini), including a reappraisal of the taxonomic history of 'Canthon sensu lato'
A monographic revision of the Neotropical dung beetle genus Sylvicanthon Halffter & Martinez, 1977 (Coleoptera: Scarabaeidae: Scarabaeinae: Deltochilini), including a reappraisal of the taxonomic history of 'Canthon sensu lato'
复制标题
DOI：
10.5852/ejt.2018.467
复制
发表时间：
2018-10-16
影响因子：
1.2
通讯作者：
Vaz-De-Mello, Fernando Z.
中科院分区：
文献类型：
--
作者：
Cupello, Mario;Vaz-De-Mello, Fernando Z.
虽然在过去的150年里，不同的作者进行了广泛的研究，但Canthon Hoffmannsegg，1817和近似属（这里非正式地称为Canthon sensu lato）的分类仍然存在问题。为了解决围绕这些分类群的一些问题，本工作回顾了其中之一，属Sylvicanthon Haler & Martinez，1977的分类。如这里所定义的，Sylvicanthon主要分布在新热带区的热带雨林的广大地区，包括15个物种，分为两个组：enkerlini组，只有一个物种，S。enkerlini（Martinez等人，1964）comb. nov.，candezei亚群有S candezei（Harold，1869）、S. genierisp. nov.和S. foveiventris（施密特，1920）; aequinoctialis（Harold，1868）comb. nov.和S. proseni（Martinez，1949）stat. et comb. nov.; bridarollii亚群，S. bridarollii（Martinez，1949），S. seag sp. nov.，S. edmondsi sp. nov.和S. [1] Atenboroughi sp. nov.; furvus亚群，S. furvus（施密特，1920），S. monnei sp. nov.，S. mayri sp. nov.和S. obscurus（施密特，1920）和securus亚组，其中只有一个种S. securus（施密特，1920）comb. nov.三个原属于Sylvicanthon的种被转移到Canthon：Canthon xanthopus Blanchard，1846和C. macha doi（Martinez &佩雷拉，1967）comb. nov.，以及C. cobosi（佩雷拉& Martinez，1960）stat. et comb. nov.，它以前在C下是同义的。黄瘤本文对该属及其种的外部形态（包括生殖囊）进行了描述、重新描述、图解和比较表，并详细讨论了它们的地理学、比较形态学、亲缘关系假说、自然历史资料以及对“Canthon sensu lato”分类的详细历史修订。最后，我们还讨论了所谓的“物种问题”（即，科学术语“种”的定义）及其对蜣螂分类学的影响，并支持生物种概念提供的解决方案。
Although extensively studied by different authors over the past 150 years, the taxonomy of Canthon Hoffmannsegg, 1817 and allied genera (which are here informally referred to as Canthon sensu lato') still remains problematic. With the aim of resolving some of the questions surrounding these taxa, the present work reviews the taxonomy of one of them, the genus Sylvicanthon Haler & Martinez, 1977. As defined here, Sylvicanthon is distributed mainly throughout the vast areas of tropical rainforests in the Neotropical region and includes 15 species divided into two groups: the enkerlini group, with a single species, S. enkerlini (Martinez et al., 1964) comb. nov., and the candezei group, with five subgroups: the candezei subgroup, with S candezei (Harold, 1869), S. genieri sp. nov. and S. foveiventris (Schmidt, 1920); the aequinoctialis subgroup, with S. aequinoctialis (Harold, 1868) comb. nov. and S. proseni (Martinez, 1949) stat. et comb. nov.; the bridarollii subgroup, with S. bridarollii (Martinez, 1949), S. seag sp. nov., S. edmondsi sp. nov. and S. attenboroughi sp. nov.; the furvus subgroup, with S. furvus (Schmidt, 1920), S. monnei sp. nov., S. mayri sp. nov. and S. obscurus (Schmidt, 1920); and the securus subgroup, with a single species, S. securus (Schmidt, 1920) comb. nov. Three species originally included in Sylvicanthon are here (re)transferred to Canthon: Canthon xanthopus Blanchard, 1846 and C. macha doi (Martinez & Pereira, 1967) comb. nov., as well as C. cobosi (Pereira & Martinez, 1960) stat. et comb. nov., which had been previously in synonymy under C. xanthopus. Descriptions, redescriptions, illustrations and comparative tables on the external morphology (including the genital capsule) of the genus and its species are presented, as well as a detailed discussion on their biogeography, comparative morphology, hypotheses on their phylogenctic relationships, data on natural history and a detailed historical revision of the classification of 'Canthon sensu lato'. Finally, we also discuss the socalled 'species problem' (i.e., the definition of the scientific term 'species') and its consequences to dung beetle taxonomy and favour the solution offered by the Biological Species Concept.