Calosoma (Calosoma) maximoviczi A. Morawitz, 1863

Length 25-35 mm. Length 25-35 mm. C. maximoviczi, has the pronotum less transverse than the species of the C. sycophanta group, regularly rounded, less narrowed behind having sides not sinuate, almost parallel. Head and pronotum have dense punctures and fine transverse wrinkles. The elytra are elongated, with moderately convex and incised intervals. The punctures in the striae are just visible. The upper part is constantly dark having metallic, bronze, or rarely bluish, lustre.
It is quite common in southern Tibet (Linzhi and Changdu pref.), and in most of China, spreading southward up to Laos border (Lapouge, 1924). It is also found in Mongolia and in the Far East of Russia (Ussuri and Primorsky Krai), Sakhalin and Kurili Islands, Taiwan, Korea, and Japan.
From the north of Mongolia only one finding is known, that according to Obidov (2010: 63), should represent a new subspecies. Reading the original description this subspecies should be distinct from the typical populations because of the more rough sculpture of head and pronotum, the narrower prothorax, the color of the upper body without green or bluish luster, the elytral foveoles indistinct. These are very tenuous characters that also appear in isolated specimens of other populations and that do not justify the creation of a subspecies based on the specimen in question.

Examined specimens and literature’s data
China. Anhui: Wuhu, Shuchazhen (www.inaturalist.org); Beijing: (Breuning, 1927: 179), Miyun County, Wuling Mountain (www.inaturalist.org); Fujian (Deuve, 1997: 54): Nanping 1500m (https://carabus.net/); Gansu: Wishu (SB); Hebei: Laishui County (www.inaturalist.org); Heilongjiang: Mudanjiang (Ebay); Henan: Nanyang (SB), Anyang, Luoyang, Xinyang, Pingdingshan (www.inaturalist.org), Funju Shan, Neixiang Xian, Baotianman (Deuve, 2013: 71); Hong Kong: Chai Wan (www.inaturalist.org); Hubei: Dahongshan (VV), Mt. Wangfoshan 1940m. (http://carabidae.org/), Wuhan, Shiyan (www.inaturalist.org); Hunan: Huaihua (SB), Zhuzhou, Changsha (www.inaturalist.org); Jiangsu: Chinkiang (Zhenjiang) (Mandl, 1981: 21), Nanjing, Changzhou, Changsha (www.inaturalist.org); Liaoning: Mt Wulong (SB), Zhoujia (SB), Mt.Toudaogou (SB), North Fengcheng City, (http://www.zin.ru/), Dalian (www.inaturalist.org); Shaanxi: Lueyang (Deuve, 1997: 54; www.inaturalist.org), Ankang, Shangluo (www.inaturalist.org); Shandong: Chefu (Breuning, 1927: 179), Qixia (Mu et al., 2005), Weifang, Jinan, Yanggu (www.inaturalist.org); Sichuan: Chengdu (Tschongtu) (Breuning, 1927: 179), Jiuzhaigou (Deuve,2013: 71), Panzhihua (www.inaturalist.org); Xīzàng: Tibet (Ye Liu sub himalayanum in https://carabidae.org/gallery?taxon=29), Linzhi (SB, TL), Qamdo (Changdu) (SB); Yunnan: Pe Yen Tsing (SB), Xinping county (Ebay, 2019), Tche Ping Tcheu (EM), Binchuan (NMP), Yuxi, Chuxiong (www.inaturalist.org), Shuangbai co. (SB); Zhejiang: Jinhua env. (Mandl, 1981: 21), Tianmushan reserve, Lishui, Hangzhou, Huzhou, Zhoushan, Ningbo (www.inaturalist.org).
Japan. Hokkaido: Mt Daisengen (EM, TL), Maruyama (SB), Sapporo pref (SB), Mt. Moiwa, Chitose, Abashiri (www.gbif.org), Higashikawa (www.inaturalist.org); Honshu: Aichi pref: Toyota (www.gbif.org); Akita pref: Tamagawa (www.gbif.org); Aomori Pref.: Mt. Iwaki, Aoni, Towada (www.gbif.org); Fukui pref: Fukui city (www.gbif.org); Gumma Pref: Ubuchi, Agatsuma (www.gbif.org); Kanagawa pref: Minamiashigara, Mt. Hakone, Ashigarashimo, Sagamihara (www.gbif.org); Hyōgo pref.: (Bates, 1873: 235), Mt.Ohonade, Karasuhara (www.gbif.org); Iwate pref: Morioka, Hachimanntai (www.gbif.org); Nagano pref: Uega (www.inaturalist.org), Takasedani, Nakabusa (www.gbif.org); Niigata Pref: Muroya (www.gbif.org); Osaka pref: Higashiōsaka (www.gbif.org), Minoh (www.inaturalist.org); Saitama Pref: Chichibu (www.gbif.org); Shiga Pref (Yahiro & al., 1997: 417); Kyoto (www.inaturalist.org); Tokyo: (Breuning, 1927: 178), Minami (www.gbif.org), Inokashira park, Musashiseki, Inokashira, Kanda (www.gbif.org), Hachiōji, Kodaira (www.inaturalist.org); Tochigi Pref: Mt. Ohira (www.gbif.org); Yamagata pref.: Oguni (SB); Kyushu: Oita pref (www.gbif.org)
Democratic People's Republic of Korea. Pyonganbuk-do: Mt. Chonmasan (EM, SB), Hamgyong-do: Solhan Ridge (SB, TL)
Republic of Korea. Chungcheongnam: Cheonan, Yesan, Seosan (www.inaturalist.org); Daejeon: Yuseong (www.inaturalist.org); Gangwon: Goseong (www.inaturalist.org); Gyeonggi: Pocheon (KNA Korea National Arboretum, gbif.org), Gunpo, Gimpo, Uijeongbu (www.inaturalist.org); Gyeongsangbuk: Daegu (http://blog.naver.com/), Ulleung Island (www.inaturalist.org); Gyeongsangnam: Geochang (www.inaturalist.org); Incheon: Ongjin (www.inaturalist.org); Jeju (Lapouge, 1924: 41): Bukjeju, Seogwipo, Jeju, Mt. Hallasan NP, Dongbok-ri, Keun-nokkome Oreum (www.inaturalist.org); Jeollanam: Jindo (www.inaturalist.org)
Laos. Chinese border (Lapouge, 1924: 41)
Mongolia. Khan Khentii (type locality of maximoviczi chaniense Obydov, 2010: 63)
Russia. Ussuri (Breuning, 1927: 178), South of Primorsky Krai (Sundukov, 2013: 85); Primorsky Krai: Yakovlevsky district, Lazarevka (http://www.zin.ru/); Kuril Islands: Iturup island (Sundukov, 2013: 85); Sakhalin island (http://encsakhalin.ru)
Taiwan. Fuhosho 1000m. (type locality of maximoviczi sauteri to be found in Nantou Pref. Wucheng, near Polisha village, Tsuneki, 1977: 261); Nantou: Puli (www.gbif.org); Waishuangxi, Shilin (Taiwan Forestry Research Institute, www.gbif.org), Yu Shan N.P. (www.inaturalist.org); Daegu (http://blog.naver.com/); Kaohsiung: Hsinchu (www.inaturalist.org); Miaoli County: Xihu (www.inaturalist.org); Taipei: Taoyuan (www.inaturalist.org)

Notes: C. maximoviczi is diurnal, fully winged and a good climber on trees. It has been noted feeding mostly on caterpillars and sometime it is a conspicuous predator of the beech caterpillar, Quadricalcarifera punctatella (Kamata & Igarashi, 1997). In most countries where it lives, C. maximoviczi has one generation per year. Adult beetles begin active life starting from mid-May, They oviposite in early June and the full development takes about 30-45 days. The adult remains active until the middle of October, and overwinter in small cavities in soil.
The species has been named after Karl Ivanovich Maximovicz (1827 – 1891), a Russian botanist that collected and studied the flora of the Far East.

Calosoma (Calosoma) maximoviczi ♂ A. Morawitz, 1863 China: Southern Thibet, Jiangda, Changdu, Jingke

Calosoma (Calosoma) maximoviczi ♀ A. Morawitz, 1863 China: Liaoning, Mt Wulong, VI.06, Juantai