Abstract

Dioryche MacLeay, 1825 is a moderately diverse selenophorine genus distributed in the Oriental Region. In this contribution, D. orszuliki sp. n. is described from the extreme southwest of the Sultanate of Oman (Jabal al Qamar Mountain, Dhofar Governorate). The new species is very similar to D. nitidula Kataev, 2012 from Northwest India (Rajasthan) and may be considered as its vicariant. It is the only representative of the Oriental genera among Carabidae known from the southern Arabian Peninsula. The close relationship of D. orszuliki sp. n. and D. nitidula points to a relatively recent migration of the ancestral form of the former species to the Arabian Peninsula, probably in one of the preceding humid periods, with subsequent isolation and speciation there when the climate became drier.

中文翻译：

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来自阿曼的东方甲虫属的新种Dioryche MacLeay（鞘翅目，鞘翅目）

摘要

Dioryche MacLeay，1825年，是分布在东方地区的中等多样性的硒代佛氏菌属。在此贡献中，D。orszuliki sp.。。从阿曼苏丹国的最西南方描述（Dhofar省Jabal al Qamar山）。该新物种与印度西北部（拉贾斯坦邦）的D. nitidula Kataev（2012年）非常相似，可以被视为其vic族。它是从阿拉伯半岛南部已知的金龟科中东方属的唯一​​代表。D. orszuliki sp。的亲密关系。。和D. nitidula 指出以前物种的祖先形式向阿拉伯半岛的迁移相对较新，可能是在先前的湿润时期之一，而当气候变得干燥时，随后便开始了隔离和物种形成。