Data from: Phylogenetic revision of Minyomerus Horn, 1876 sec. Jansen & Franz, 2015 (Coleoptera, Curculionidae) using taxonomic concept annotations and alignments

This contribution adopts the taxonomic concept annotation and alignment approach. Accordingly, and where indicated, previous and newly inferred meanings of taxonomic names are individuated according to one specific source. Articulations among these concepts and pairwise, logically consistent alignments of original and revisionary classifications are also provided, in addition to conventional nomenclatural provenance information. A phylogenetic revision of the broad-nosed weevil genera Minyomerus Horn, 1876 sec. O’Brien & Wibmer (1982), and Piscatopus Sleeper, 1960 sec. O’Brien & Wibmer (1982) (Curculionidae [non-focal]: Entiminae [non-focal]: Tanymecini [non-focal]) is presented. Prior to this study, Minyomerus sec. O’Brien & Wibmer (1982) contained seven species, whereas the monotypic Piscatopus sec. O’Brien & Wibmer (1982) was comprised solely of P. griseus Sleeper, 1960 sec. O’Brien & Wibmer (1982). We thoroughly redescribe these recognized species-level entities and furthermore describe ten species as new to science: M. bulbifrons sec. Jansen & Franz (2015) (henceforth: [JF2015]), sp. n., M. aeriballux [JF2015], sp. n., M. cracens [JF2015], sp. n., M. gravivultus [JF2015], sp. n., M. imberbus [JF2015], sp. n., M. reburrus [JF2015], sp. n., M. politus [JF2015], sp. n., M. puticulatus [JF2015], sp. n., M. rutellirostris [JF2015], sp. n., and M. trisetosus [JF2015], sp. n. A cladistic analysis using 46 morphological characters of 22 terminal taxa (5/17 outgroup/ingroup) yielded a single most-parsimonious cladogram (L = 82, CI = 65, RI = 82). The analysis strongly supports the monophyly of Minyomerus [JF2015] with eight unreversed synapomorphies, and places P. griseus sec. O’Brien & Wibmer (1982) within the genus as sister to M. rutellirostris [JF2015]. Accordingly, Piscatopus sec. Sleeper (1960), syn. n. is changed to junior synonymy of Minyomerus [JF2015], and its sole member P. griseus sec. Sleeper (1960) is moved to Minyomerus [JF2015] as M. griseus [JF2015], comb. n. In addition, the formerly designated type M. innocuus Horn, 1876 sec. Pierce (1913), syn. n. is changed to junior synonymy of M. microps (Say, 1831) [JF2015] which has priority. The genus is widespread throughout western North America, ranging from Canada to Mexico and Baja California. Apparent patterns of interspecific diversity of exterior and genitalic morphology, varying host plant ranges, overlapping and widely extending species distributions, suggest an early origin for Minyomerus [JF2015], with a diversification that likely followed the development of North American desert biomes. Three species in the genus – i.e., M. languidus Horn, 1876 [JF2015], M. microps [JF2015], and M. trisetosus [JF2015] – are putatively considered parthenogenetic.本研究采用分类单元概念注释（taxonomic concept annotation）与比对方法（alignment approach）。据此，在指定情形下，分类单元名称（taxonomic names）的既往含义与新近推导含义将依据单一特定源文献进行界定。除常规命名起源信息（nomenclatural provenance）外，本研究还阐明了上述分类概念之间的关联，以及原始分类与修订分类之间成对的逻辑一致比对关系。 本研究针对宽喙象甲（broad-nosed weevil）的两个属——依据O’Brien & Wibmer (1982)界定的Minyomerus Horn, 1876属，以及Piscatopus Sleeper, 1960属（象甲科[Curculionidae]：非研究类群；象甲亚科[Entiminae]：非研究类群；坦尼象族[Tanymecini]：非研究类群）开展系统发育修订（phylogenetic revision）。 在本研究开展前，依据O’Brien & Wibmer (1982)的界定，Minyomerus属包含7个物种，而单型属Piscatopus依据O’Brien & Wibmer (1982)的界定仅包含P. griseus Sleeper, 1960（依据O’Brien & Wibmer 1982）一个物种。 本研究对上述已确认的物种级分类单元进行了全面重新描述，此外还发表10个科学新种：M. bulbifrons sec. Jansen & Franz (2015)（下称[JF2015]）sp. n.、M. aeriballux [JF2015] sp. n.、M. cracens [JF2015] sp. n.、M. gravivultus [JF2015] sp. n.、M. imberbus [JF2015] sp. n.、M. reburrus [JF2015] sp. n.、M. politus [JF2015] sp. n.、M. puticulatus [JF2015] sp. n.、M. rutellirostris [JF2015] sp. n.，以及M. trisetosus [JF2015] sp. n.。 本研究选取22个末端分类单元（terminal taxa）（外类群/内类群为5/17），基于46个形态特征（morphological characters）开展分支分析（cladistic analysis），得到1棵最简约分支图（most-parsimonious cladogram）（步长L=82，一致性指数CI=0.65，保留指数RI=0.82）。分析结果强力支持Minyomerus属[JF2015]为单系群（monophyly），具有8个非逆转共源性状（synapomorphies）；同时将P. griseus（依据O’Brien & Wibmer 1982）置于该属内，作为M. rutellirostris [JF2015]的姊妹群。 据此，原Sleeper (1960)界定的Piscatopus属[JF2015]被降为晚出同物异名（junior synonymy），归入Minyomerus属；其唯一成员P. griseus（依据Sleeper 1960）也随之组合为M. griseus [JF2015] comb. n.。此外，原依据Pierce (1913)界定的模式种M. innocuus Horn, 1876 [JF2015]被降为晚出同物异名，归入具有命名优先权的M. microps (Say, 1831) [JF2015]。 该属广泛分布于北美西部，范围涵盖加拿大、墨西哥及下加利福尼亚半岛。 该类群间外部形态与生殖器形态的种间多样性模式、各异的寄主植物范围，以及重叠且广泛延伸的物种分布区，均表明Minyomerus属[JF2015]起源较早，其多样化进程大概率伴随北美沙漠生物群落的形成而发生。 该属中有3个物种——即M. languidus Horn, 1876 [JF2015]、M. microps [JF2015]以及M. trisetosus [JF2015]——被推测为孤雌生殖（parthenogenetic）类群。