Department of Entomology, College of Plant Protection, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China.
Department of Entomology, College of Plant Protection, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, China; Mécanismes adaptatifs et évolution (MECADEV), UMR 7179 CNRSMNHN, Muséum national d'Histoire naturelle, CP50, 57 Rue Cuvier, 75005 Paris, France.
Zootaxa. 2021 Jun 14;4985(2):194202. doi: 10.11646/zootaxa.4985.2.3.
Ckacus youcha n. gen. n. sp. is described and illustrated based on a single male discovered in the deep area of Luoshui Dong, a vertical cave in Anlong Xian, southwestern most of Guizhou Province, Southwest China. This new genus seems related to Bathytrechus Uéno, 2005 from Leye Xian, northwestern most Guangxi by its elongate body which is wholly pubescent, the tridentate right mandible and the well-striated elytra with the 1st interval extremely narrowed at apical 1/3, but differs in several important characters. In addition, three individuals of the species Satotrechus rieae Uéno, 2006 were also collected from -340 m to -450 m in the same cave. This species was formerly only known from four caves in Anlong and Ceheng counties.
Ckacus youcha n. gen. n. sp. 是根据在中国西南部贵州省最西南部安龙县罗什东的一个垂直洞穴深处发现的一个单一雄性而描述和说明的。这个新属似乎与来自最西北部广西乐业县的 Bathytrechus Uéno, 2005 有关，因为它的身体细长，完全被毛，右颚三叶形和具条纹的鞘翅在近顶部的 1/3 处极度变窄，第 1 间隔，但在几个重要特征上有所不同。此外，还从同一洞穴的-340 米到-450 米处采集到三种 Satotrechus rieae Uéno, 2006 物种。该物种以前仅在安龙和册亨县的四个洞穴中被发现。
