Belousov Igor A, Kabak Ilya I
All-Russian Institute of Plant Protection, Podbelskogo 3, 189620, St. Petersburg, Pushkin, Russia All-Russian Institute of Plant Protection St. Petersburg Russia.
Zookeys. 2021 Jun 16;1044:197-220. doi: 10.3897/zookeys.1044.62572. eCollection 2021.
A new genus and new species of carabid beetle, , is described from mountains SW of Mianning City, Sichuan Province, China. This finding, from one side, extends the known distribution of Chinese hypogean trechines, and from another, it raises the upper limit of their vertical distribution to nearly 4000 m. Photographs of the habitus and major taxonomic characters, including the male genitalia, right mandible, and microsculpture patterns of the integument are supplied. The type locality of the new taxon is mapped. shows some similarities with the genus Tian, 2016 from eastern Guizhou and the genus Uéno, 2002 described from Hubei, China. However, the direct relationships of the new genus remain unclear. Further new discoveries of hypogean trechines in Sichuan are necessary to evaluate possible variation of major characters in allied taxa. Although was collected at an elevation exceeding 3800 m a.s.l., it conforms to the upper limit of the forest zone being approximately on par with the vertical distribution of some high altitude hypogean trechine species in other parts of the globe.
中国四川省冕宁县城西南部山区发现了一种步甲科昆虫的新属新种。这一发现一方面扩展了中国洞穴步甲已知的分布范围，另一方面将其垂直分布上限提高到了近4000米。文中提供了该物种的整体形态及主要分类特征的照片，包括雄性生殖器、右颚以及体表微刻纹图案。新分类单元的模式产地已标注在地图上。该新种与2016年在贵州东部发现的属以及2002年在中国湖北描述的属有一些相似之处。然而，该新属的直接亲缘关系仍不明确。有必要在四川进一步发现洞穴步甲新物种，以评估相关类群主要特征的可能变异情况。尽管该新种是在海拔超过3800米的地方采集到的，但它符合森林带的上限，这与全球其他地区一些高海拔洞穴步甲物种的垂直分布情况大致相当。
