JaŁoszyŃski PaweŁ
Museum of Natural History, University of Wrocław, Sienkiewicza 21, 50-335 Wrocław, Poland..
Zootaxa. 2018 Nov 30;4526(3):397-400. doi: 10.11646/zootaxa.4526.3.10.
Eutheia Stephens, 1830 is distributed in Holarctic and Neotropical regions, with a majority of species known to occur in the Palaearctic. Recent studies focused on the Russian Far East, China, Taiwan and Japan yielded many new species (Hoshina 2007; Jałoszyński 2004, 2008a, 2008b, 2010a, 2010b, 2013; Kurbatov 1990, 1991). Central and South Asia are very poorly studied, as these areas include several countries whose geopolitical situation makes field studies difficult. Besides two Himalayan species of Eutheia discovered in Nepal (Franz 1974, 1985), the scydmaenine fauna of the vast area comprising Afghanistan, Pakistan and some of the former Soviet republics is very poorly known. Southern areas of this region (mostly India) are better studied, but as Eutheia prefers temperate climate and even in the Neotropics and in Taiwan can be found only in high mountains (Jałoszyński 2008b, 2011), it is not very likely to find this genus far south of the mountain arc formed by the Himalayas, Karakoram and Hindu Kush. Pakistan, with its potentially species-rich, forested sub-Himalayan region with a subtropical highland climate, is exceptionally poorly studied, with only four species of Scydmaeninae recorded: Scydmoraphes gartneri (Franz, 1979), Scydmoraphes hastipes Vít, 1999, Stenichnus fallax Vít, 1999 (all Glandulariini), Scydmaenus minangkabauensis C. Blattný, 1926 and Scydmaenus ravalpindii Franz, 1970 (Scydmaenini). However, some of these species remain problematic. The identity of Pakistani material of Sc. minangkabauensis remains unclear, as this species was described from Sumatra, and recorded from Vietnam, southern China, Java, Sri Lanka, Nepal and Pakistan (e.g., Franz 1982). Such a broad distribution seems unlikely, especially that many species of Scydmaenus share very uniform appearance and their aedeagi were often studied and illustrated by Franz just in any possible view, depending on how they solidified in euparal, without making any attempt to obtain repeatable preparations. Stenichnus fallax, in turn, is very likely a junior synonym of Stenichnus rothangensis (Franz, 1981), a species redescribed by Jałoszyński (2015) and known to occur in the Indian state of Himachal Pradesh, not far from the type locality of St. fallax.
1830年描述的真蚁甲属(Eutheia)分布于全北区和新热带区,已知多数物种分布在古北区。近期针对俄罗斯远东地区、中国、台湾和日本的研究发现了许多新物种(保科,2007;亚沃辛斯基,2004、2008a、2008b、2010a、2010b、2013;库尔巴托夫,1990、1991)。中亚和南亚地区的研究非常匮乏,因为这些地区包含几个国家,其地缘政治状况使得实地研究困难重重。除了在尼泊尔发现的两种喜马拉雅真蚁甲属物种(弗兰兹,1974、1985)外,对包括阿富汗、巴基斯坦和一些前苏联共和国在内的广大地区的球甲科动物了解甚少。该地区南部(主要是印度)的研究较好,但由于真蚁甲属偏好温带气候,即使在新热带区和台湾也仅在高山地区发现(亚沃辛斯基,2008b、2011),所以在喜马拉雅山、喀喇昆仑山和兴都库什山形成的山弧以南很远的地方不太可能发现该属物种。巴基斯坦拥有潜在物种丰富、森林覆盖且具有亚热带高地气候的喜马拉雅山地区,但研究异常匮乏,仅记录了四种球甲科物种:加氏蚁甲(Scydmoraphes gartneri,弗兰兹,1979)、尖足蚁甲(Scydmoraphes hastipes,维特,1999)、伪狭胸蚁甲(Stenichnus fallax,维特,1999)(均为腺甲族)、米南加保蚁甲(Scydmaenus minangkabauensis,C. 布拉特尼,1926)和拉瓦尔品第蚁甲(Scydmaenus ravalpindii,弗兰兹,1970)(蚁甲族)。然而,其中一些物种仍存在问题。来自巴基斯坦的米南加保蚁甲标本的身份仍不明确,因为该物种最初是根据苏门答腊的标本描述的,记录分布于越南、中国南部、爪哇、斯里兰卡、尼泊尔和巴基斯坦(如弗兰兹,1982)。如此广泛的分布似乎不太可能,尤其是许多蚁甲属物种外观非常相似,而且弗兰兹只是根据它们在优巴耳中凝固的情况,从任何可能的角度对其阳茎进行研究和绘图,并未尝试获取可重复的标本制备。反过来,伪狭胸蚁甲很可能是罗氏狭胸蚁甲(Stenichnus rothangensis,弗兰兹,1981)的次异名,亚沃辛斯基(2015)重新描述了该物种,已知其分布于印度喜马偕尔邦,距离伪狭胸蚁甲的模式产地不远。