Rodríguez-Melgarejo Maryzender, Chani-Posse Mariana
Laboratorio de Entomología; Instituto Argentino de Investigaciones de las Zonas Áridas (IADIZA); CCT CONICET Mendoza; Parque General San Martín; s/n; 5500 Mendoza; Argentina; Departamento de Entomología; Museo de Historia Natural de la Universidad Nacional Mayor de San Marcos; Av. Arenales 1256; Jesús María; Lima 14; Peru.
Laboratorio de Entomología; Instituto Argentino de Investigaciones de las Zonas Áridas (IADIZA); CCT CONICET Mendoza; Parque General San Martín; s/n; 5500 Mendoza; Argentina.
Zootaxa. 2024 Aug 30;5501(2):345-357. doi: 10.11646/zootaxa.5501.2.7.
The tropical Andes are known as a biodiversity hotspot with the highest percentage of endemic plants and vertebrates in the world. The Andean genera Leptopeltus Bernhauer and Leptopeltoides Chani-Posse & Asenjo contain six and four species respectively, most of which occur in the Andean highlands near 3000 m. Here, we describe two new species of the subtribe Philonthina, recently discovered in the northern Peruvian Andes: Leptopeltus dieguezi sp. nov. and Leptopeltoides nilveri sp. nov. To test the phylogenetic position of these new taxa, a dataset of 50 morphological characters scored for 16 taxa, including all currently known species of Leptopeltus, and Leptopeltoides, was prepared and analysed by maximum parsimony. Our analysis clearly placed L. dieguezi sp. nov. and Le. nilveri sp. nov. within Leptopeltus and Leptopeltoides, respectively, each of them in a well-supported clade. In addition, Le. nilveri sp. nov. represents the first country record of the genus for Peru. An updated phylogeny and distribution map of the species of Leptopeltus and Leptopeltoides, as well as revised keys to the species of these two genera, are provided.
热带安第斯地区被认为是一个生物多样性热点地区，拥有世界上最高比例的特有植物和脊椎动物。安第斯属的Leptopeltus Bernhauer和Leptopeltoides Chani-Posse & Asenjo分别包含6种和4种，其中大多数分布在海拔3000米左右的安第斯高地。在这里，我们描述了最近在秘鲁北部安第斯山脉发现的Philonthina亚族的两个新物种：Leptopeltus dieguezi sp. nov.和Leptopeltoides nilveri sp. nov.。为了测试这些新分类单元的系统发育位置，我们准备了一个包含16个分类单元（包括所有目前已知的Leptopeltus和Leptopeltoides物种）的50个形态特征数据集，并通过最大简约法进行分析。我们的分析清楚地将L. dieguezi sp. nov.和Le. nilveri sp. nov.分别置于Leptopeltus和Leptopeltoides属内，它们各自位于一个得到充分支持的分支中。此外，Le. nilveri sp. nov.是该属在秘鲁的首次国家记录。我们还提供了Leptopeltus和Leptopeltoides属物种的更新系统发育树和分布图，以及这两个属物种的修订检索表。
