Gyulai Péter
H-3530 Miskolc, Mélyvölgy 13/A, Hungary..
Zootaxa. 2017 Nov 28;4358(1):188-192. doi: 10.11646/zootaxa.4358.1.10.
Xestia Hübner, 1818 is a diverse and widespread Noctuinae genus, most of the known species occur in the Holarctic and the rest in Africa. Due to the expeditions to the hardly explored area of Asia, new species of Xestia have been recognized and described during the last years (Gyulai et al. 2011, 2013; Gyulai & Ronkay 2016). A German expedition (Ratzel, Hauenstein, M. Falkenberg & Trusch) led to the high altitude region of western Bhutan, collected a series of a rather small Perissandria Warren, 1909-like species, of which the genitalia show, surprisingly, the typical features of Xestia, displaying conspicuous external and genitalia differences, comparing with the Tibetan Xestia lithoplana Hreblay, Ronkay & Plante, 1998. The second new species described here below, has already been under discussion for a long time. The genitalia slide was provided by the late Márton Hreblay, from the author's material and suspected by him as Paramathes Boursin, 1954. After the revision of the genus Paramathes (Varga et al 2015), the detailed study led to the recognition that it cannot be a Paramathes, but a hitherto unknown Xestia. Thus, the description of the two new species appears to be reliable and is presented below.
Xestia 胡伯纳，1818年，是一个种类多样且分布广泛的夜蛾亚科属，已知的大多数物种分布在全北区，其余的分布在非洲。由于对亚洲难以探索地区的考察，近年来已识别并描述了Xestia属的新物种（居拉伊等人，2011年、2013年；居拉伊和龙凯，2016年）。一支德国考察队（拉策尔、豪恩施泰因、M. 法尔肯贝格和特鲁施）前往不丹西部的高海拔地区，采集到一系列体型相当小的类似1909年的Perissandria沃伦属的物种，令人惊讶的是，其生殖器呈现出Xestia属的典型特征，与1998年的西藏Xestia lithoplana 赫布莱、龙凯和普兰特相比，在外部和生殖器方面存在明显差异。下面描述的第二个新物种，已经讨论了很长时间。生殖器玻片由已故的马尔顿·赫布莱提供，取自作者的材料，他曾怀疑其为1954年的Paramathes布尔森属。在对Paramathes属进行修订（瓦尔加等人，2015年）之后，详细研究表明它不可能是Paramathes属，而是一个迄今未知的Xestia属。因此，这两个新物种的描述似乎是可靠的，现呈现如下。
