Torrenticola nipponica ( Enami, 1940 )

Gu, Xinyao, Zhang, Yuhao, Zheng, Yuling & Guo, Jianjun, 2023, First collection of Torrenticolidae (Hydrachnidiae, Acari) from Yintiaoling National Nature Reserve, China, with descriptions of two new species, Zootaxa 5257 (1), pp. 131-142 : 139-140

Torrenticola nipponica ( Enami, 1940)

Atractides nipponicus Enami 1940: 221 .

Torrenticola nipponica: Chung & Kim 1995: 27 ; Pešić et al. 2013: 30 ; Gu et al. 2018: 1973.

Diagnosis. Idiosoma oval, purple or reddish; antero-medial platelets rectangular oval; P-2 with three to five thick and long setae, one dorsal short-thin seta, and with a ventral prolongation bearing a long seta; P-3 with two or three dorsal setae, and a ventral prolongation bearing a long seta; P-4 with four fine dorsal setae and two ventral prolongations bearing one long and three short setae.

Material examined. 1/2/0 (CQ-TO-2022081302— CQ-TO-2022081304), China, Chongqing, Wuxi, Yintiaoling National Nature Reserve, Lanying Grand Canyon (31°26′19′′N, 109°50′46′′E, 870 m a.s.l.), 13-VIII-2022, collected by Yuhao Zhang.

Habitat. Streamlet, about 0.3–0.5 m in depth, with many small stones at the bottom.

Remarks. Those specimens match the general morphology of T. nipponica , a species from Japan ( Enami 1940). And T. nipponica was reported as a newly recorded from China in 2018 ( Gu et al. 2018). Those specimens from Chongqing show a general conformity with the populations from Guizhou: C 4 on the same line with the 4 th pair of acetabula in the male, and the 5 th pair in the female; dorsal plate with a colour pattern, hour-glass-shaped with pale“shoulder-patches”.

Distribution. China (Guizhou ( Gu et al. 2018), Chongqing), Japan ( Enami 1940), South Korea ( Chung & Kim 1995, Pešić et al. 2013), and Russia ( Pešić et al. 2013).