Trachelas japonicus Bösenberg & Strand, 1906

Trachelas japonius Feng, 1990: 170, fig. 145 (♀) (Zhejiang).

Trachelas japonica Chen & Gao, 1990: 156, fig. 199 (♀) (Sichuan).

Trachelas japonicus Song, Chen & Zhu, 1997: 1727, fig. 33a–b (♀) (Hubei).

Trachelas japonicus Song, Zhu & Chen, 1999: 429, fig. 255S–T (♀) (Shanxi).

Trachelas japonicus Song, Zhu & Chen, 2001: 324, fig. 209A–H (♂ ♀) (Hebei).

Trachelas japonicus Zhang, Fu & Zhu, 2009: 51, figs 23–35 (♂ ♀) (Hebei, Hunan, Liaoning).

Trachelas japonicus Wang, Zhang & Zhang, 2012: 48, fig. 12A–I (♂ ♀) (Chongqing).

Trachelas japonicus Zhang, Peng & Zhang, 2022: 206, fig. 151A–G (♂ ♀) (Hebei).

For complete bibliography see WSC (2024).

Material examined. CHINA: Zhejiang Province: 2♀, Hangzhou City, Lin 'an District, Qingliangfeng Town, Zhechuan Village, 2 June 2013, leg. Shanjie Zha. Tianjin Municipality: 2♀, Jixian County, Baxianshan Mountain, 24 May 2007, leg. Feng Zhang. Guizou Province: 1♀, Zunyi City, Daozhen Gelao and Miao Autonomous County, Dashahe National Nature Reserve, Qianfeng Village, 20 May 2004, leg. Huiming Chen ; 1♀, Panzhou City, Baoji Township, Gesuo Village (25°59.492′N, 104°52.970′E), 1669 m a.s.l., 23 July 2012, leg. Dong Wang and Xuankong Jiang ; 1♀, Suiyang County, Kuankuoshui National Nature Reserve, Central Management Station, 3 June 2010, leg. Luyu Wang. Shaanxi Province: 4♀, Baoji City, Mei County, Taibai Mountain (34°05.928′N, 107°50.048′E), 1279 m a.s.l., 23 May 2009, leg. Luyu Wang. Ningxia Hui Autonomous Region: 1♀, Guyuan City, Pengyang County, Liupan Mountain, Guamagou Forest Farm , Dojia Villa, 27 July 2010, leg. Long Liu.

Distribution. China (Zhejiang, Sichuan, Hubei, Shanxi, Hebei, Hunan, Liaoning, Chongqing; new provincial record: Tianjin, Guizhou, Shaanxi, Ningxia) (Fig. 4). Also known from Russia, Korea and Japan.

Remarks. The specimens from Sichuan and Shanxi Province of China were recorded in Chen & Gao (1990) and Song et al. (1999), respectively, with no detailed specimen collection locations given, even at the city level. Therefore, in the map (Fig. 4), there are no clear distribution points of T. japonicus in Sichuan and Shanxi, but an eight-pointed star is used to represent the vague records in these two provinces.