Calosoma (Charmosta) lugens Chaudoir, 1869
Calosoma lugens Chaudoir, 1869: 377 (type material: 1 ♂ and 1 ♀, described from: Tche-Fu); lectotype ♂ (no locality label) designated by Deuve (1978: 249) in Muséum National d'Histoire Naturelle, Paris
Calosoma (Charmosta) irregularis Reitter, 1902: 185 (type locality: Wladiwostok) holotype ♀ in Hungarian Natural History Museum, Budapest (Sundukov, 2013: 86)
Calosoma (Charmosta) lugens Breuning, 1927: 228
Charmosta lugens Jeannel, 1940: 123
Length 26-31 mm. The elytral sculpture of C. lugens is confused and all intervals are flattened but still it is possible to recognize grainy alignments with a pattern of pentaploid type. On the primary intervals there are small cupric foveae that, carefully watching, stand out on the dark color of the upper body.
C. lugens is found throughout northern China and Mongolia up to Kraj Primorskij in Russia. According to data from Kwon & Lee (1984), the species is also present in various locaties in North and South Korea of which Imura (2010) shows the map. Moreover, Imura, reviewing all existing data for the Far East, also mentions, albeit with some doubts, three isolated catches in Japan (Tsunugawa and Yakeyama in Honshu and the Mt-dake of Shiretoko in Hokkaido).
Examined specimens and literature’s data
China. Bejing (SB); Gansu: Swan ting sa (EM); Hebei: Zhangjiakou (=Kalgan) (SB); Heilongjiang (Deuve, 1997: 56); Inner Mongolia (EM, SB), Hohhot (Deuve, 1997: 56), Tongliao (Ebay, 2025); Liaoning: Zidutai-Fuxin co. Xiadian Zi (SB), Xiuyan co. Mt.Toudaogou (SB), Wen-dong (http://carabidae.org/), Shenyang (= Mukden) (Breuning, 1927: 228); Shandong: Yantai (=Tche-Fu) (type; MNHN); Shanxi (Breuning, 1927: 228), Datong (Deuve, 2013: 72); Sichuan (Deuve, 1997: 56), Juzhaigon (SB)
Japan. Honshū Tsunugawa (Imura, 2010: 28); Honshū Yakeyama (Imura, 2010: 28); Hokkaido Shiretoko (Imura, 2010: 28)
Democratic People's Republic of Korea. /b> Pujòn'gowon, Samsu (Kwon & Lee, 1984); North Hamgyong Province: Ch'ŏngjin (Kwon & Lee, 1984),
Republic of Korea> Seoul env,(Imura, 2010: 28)
Mongolia. (Jeannel, 1940: 123)
Russia. Primorskij Kraj: Wladiwostok (SB; Reitter, 1902: 185 sub irregularis), Nikotsk-Ussurijsk (EM; SB), Lazlo (MPSU/GBIF), Ekaterinovka (SISTAX/GIBF), Kanka (Chanka) lake (Jeannel, 1940: 123), Sutschau (Breuning, 1927: 228).
Notes: Winged, active adults were captured in June.
 Chaudoir, 1869 lectotype (no locality label) Muséum National d'Histoire Naturelle, Paris |
 Chaudoir, 1869 China: Liaoning, Zi Du Tai Xiang, Fuxin, 18.VI.2005, Dangh lg. |
 Chaudoir, 1869 China: Liaoning, Zi Du Tai Xiang, Fuxin, 18.VI.2005, Dangh lg. |