Estancia La Varilla Lote B114, La Serena, Chile. .
Bombero Rojas 1315, La Serena, Chile. .
Zootaxa. 2022 Aug 10;5174(3):285-293. doi: 10.11646/zootaxa.5174.3.6.
Psectrascelis Solier, 1836 is the most specious South American genus of Nycteliini, which inhabit arid and semiarid regions. Recent expeditions to the southern part of the Atacama Desert collected specimens of Psectrascelis which do not fit with any other described species belonging to this genus. These specimens are morphologically close to P. penai Kulzer, 1955 but the presence of carinae on the elytra easily differentiates this taxon from this mentioned above. Here, we analyzed external morphology, both male and female genitalia, and sequences from a fragment of the mitochondrial cytochrome c oxidase subunit I (COI) gene with that of morphologically close species. Our study supports the description of Psectrascelis senex sp. nov. and suggests that P. senex sp. nov. is the sister species of P. penai.
Psectrascelis Solier，1836 是 Nycteliini 中最具特色的南美属，栖息在干旱和半干旱地区。最近对阿塔卡马沙漠南部的考察采集到了一些不符合该属任何其他已描述物种的 Psectrascelis 标本。这些标本在形态上与 P. penai Kulzer，1955 非常接近，但鞘翅上的脊很容易将这个分类单元与上述提到的物种区分开来。在这里，我们分析了外部形态，包括雄性和雌性生殖器，以及来自线粒体细胞色素 c 氧化酶亚基 I（COI）基因片段的序列，与形态上接近的物种进行了比较。我们的研究支持了 Psectrascelis senex sp. nov. 的描述，并表明 P. senex sp. nov. 是 P. penai 的姐妹种。
