Bianchi Filipe Michels, Krein Verônica, Rider David, Grazia Jocelia
Laboratório de Entomologia Sistemática, Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil. E-mail:
Entomology Department, School of Natural Resource Sciences, North Dakota State University, Fargo, ND, USA. E-mail:
Zool Stud. 2021 Mar 22;60:e11. doi: 10.6620/ZS.2021.60-11. eCollection 2021.
The pentatomids (Hemiptera: Heteroptera) are the third most speciose family within the Heteroptera or the true bugs. The family occurs worldwide and comprises around five thousand valid species within 950 genera. Stål belongs to a complex of other genera of Carpocorini Mulsant and Rey related to Dallas. These genera present similarities in color, size, and shape, and share common features. However, among its four congeneric species, Distant has been highlighted as an outlier by the posterior margins of the bucculae evanescent, while its congeneric species present posterior margins of the bucculae lobed. Thus, herein we redescribe and present a hypothesis regarding its phylogenetic placement within the Carpocorini. Furthermore, a new species similar to is described. Four molecular markers (, CytB, 16S, and 28S) plus 86 morphological characters were used to infer the phylogeny under Maximum likelihood and Bayesian inference. For the descriptions, we measured 16 morphometric parameters and dissected the genitalic structures. We also include illustrations of the habitus, internal and external genitalic structures, and provide distribution maps. sp. n. Bianchi, Krein, Rider, and Grazia is recovered as the sister species to comb. n., and both within Rolston. Among other shared characters, species of have the femora unarmed, they have a macula near the apex of the radial vein, and the mandibular plates tapering apically. comb. n. and sp. n. have the posterior margin of the pygophore projecting as a spine, a unique pattern within the genus. According to our results, including comb. n. and sp. n. now includes five species.
蝽科（半翅目：异翅亚目）是异翅亚目或真正蝽类中物种数量排名第三的科。该科分布于全球，在950个属中约有5000个有效物种。斯塔尔属于与达拉斯相关的卡尔波科里尼族穆尔桑特和雷伊的其他属的一个复合体。这些属在颜色、大小和形状上有相似之处，并具有共同特征。然而，在其四个同属物种中，迪斯坦特因其颊后部边缘消失而被视为异常值，而其同属物种的颊后部边缘呈叶状。因此，在此我们重新描述并提出关于其在卡尔波科里尼族内系统发育位置的假设。此外，还描述了一个与之相似的新物种。使用四个分子标记（细胞色素B、16S和28S）加上86个形态特征，通过最大似然法和贝叶斯推断来推断系统发育。为了进行描述，我们测量了16个形态测量参数并解剖了生殖器结构。我们还包括了整体形态、内部和外部生殖器结构的插图，并提供了分布图。新物种比安基、克莱因、里德和格拉齐亚被发现是罗尔斯顿属内梳状新组合的姐妹物种。在其他共同特征中，罗尔斯顿属的物种股节无武装，在径脉顶端附近有一个黄斑，下颌板顶端逐渐变细。梳状新组合和新物种的肛节后缘突出成一个刺，这在该属内是一种独特的模式。根据我们的结果，包括梳状新组合和新物种在内的罗尔斯顿属现在有五个物种。
