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— Mesobuthus caucasicus intermedius (Birula 1897), from Almaty Area, Kurty District (44 u 53 9 N, 75 u 17 9 E): a–h, j, k, m, n: female; i, l: male. a. Carapace, dorsal aspect; b, c. Chelicera (b, ventral; c, dorsal); d, e. Patella (d, dorsal; e, external); f. Femur, dorsal aspect; g–i. Chela (g, i, dorso-external; h, ventral); j. Disposition of granulations on the dentate margins of the pedipalp chela movable finger; k, l: Genital operculum and pectines, ventral aspect; m. Metasomal segment V, ventral aspect; n. Metasomal segment V and telson, lateral aspect. 

— Mesobuthus caucasicus intermedius (Birula 1897), from Almaty Area, Kurty District (44 u 53 9 N, 75 u 17 9 E): a–h, j, k, m, n: female; i, l: male. a. Carapace, dorsal aspect; b, c. Chelicera (b, ventral; c, dorsal); d, e. Patella (d, dorsal; e, external); f. Femur, dorsal aspect; g–i. Chela (g, i, dorso-external; h, ventral); j. Disposition of granulations on the dentate margins of the pedipalp chela movable finger; k, l: Genital operculum and pectines, ventral aspect; m. Metasomal segment V, ventral aspect; n. Metasomal segment V and telson, lateral aspect. 

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Mesobuthus karshius new species from the southern region of Xinjiang, China, is described. Nine species and subspecies of the genus Mesobuthus Vachon 1950 from China are recorded, and diagnoses of M. eupeus mongolicus (Birula 1911), M. eupeus thersites (C.L. Koch 1839) and M. martensii martensii (Karsch 1879) are provided. In addition, M. caucasicu...

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Context 1
... Ecology. —The distribution of this subspecies is from southern Mongolia, Inner Mongolia Autonomous Region, Ningxia Hui Autonomous Region, northern and western of Gansu Province to eastern and northern Xinjiang Uygur Autonomous Region. This area is an arid or semi-arid continental climatic region: hot and arid in summer, cold and dry in winter, and quite windy and dusty in spring. According to this rhythm, the main active period of individuals is from early April to early October. Typically, this subspecies inhabits a terrene hillside with crushed rocks and low herbaceous plants, and it often hides in a flat hole under rocks during the day. Mesobuthus eupeus thersites (C.L. Koch 1839) (Fig. 10, Table 1) Androctonus thersites C.L. Koch 1839:51, plate CXCIII, fig. 466 (synonymized by Birula 1896:238); Kraepelin 1891:204. Buthus eupeus thersites (C.L. Koch): Kraepelin 1899:24; Birula 1900:359; Birula 1904:20; Birula 1905:122, fig. 3; Birula 1906:45, plate V, fig. 1; Roewer 1943:206. Buthus eupeus volgensis Birula 1925:96 (synonymized by Birula 1928:338). Mesobuthus eupeus thersites (C.L. Koch): Vachon 1958:155, fig. 37; P ́rez 1974:26; Fet 1980:224; Farzanpay 1986:334; Farzanpay 1988:38; Fet 1989:91; Fet 1994:527; Kova ˇ ́k 1997:49; Kova ˇ ́k 1998:114; Fet & Lowe 2000:175; Gantenbein et al. 2003:413, 417, table 1; Qi et al. 2004:138, 142; Zhu et al. 2004:112–113; Shi & Zhang 2005:474–475; Parmakelis et al. 2006:2886, 2889, fig. 2, table 1; Shi et al. 2007:216, 219; Kamenz & Prendini 2008:8, 41, plate 32; Sun & Zhu 2010:2. Mesobuthus eupeus volgensis (Birula): Orlov & Vaslilyev 1983:62. Type specimens. —Type material not examined. Material examined. —CHINA: Xinjiang Uygur Autonomous Region : Yining County, north of county cement works, hillsides, 44 u 00 9 N, 81 u 31 9 E, 18 May 2009, D. Sun and Y.W. Zhao, 10 K , 12 L (MHBU). UZBEKISTAN: Bukhara Area : Gizhduvan District, SW foothills of Karatau Mountain Range, 14.5 km N of Kanimekh, 5 June 2003, L. Prendini and A.V. Gromov, 3 K , 4 L (AMNH). KAZAKHSTAN: Almaty area : Kurty District, Taukum Desert, 25.5 km SE of Topar, 9 May 2003, L. Prendini and A.V. Gromov, 2 K , 3 L (AMNH); South Kazakhstan area: Suzak District, SW slope of Togyzkentau Mountain Range, 30 km SSW of Sholakespe village, 24 June 2003, L. Prendini and A.V. Gromov, 3 K , 1 male (AMNH); Otrar District, 4.5 km SSE of Utrabat (32 km SSE of Turkestan), Sargatazhol boundary, 21 June 2003, L. Prendini and A.V. Gromov, 2 K , 3 L (AMNH). Diagnosis. —This subspecies is associated with M. eupeus mongolicus , especially in the following characters: a) the shape and development of carinae on carapace and tergites; b) the numbers of pectinal teeth in males and females; c) the shape and development of carinae on metasoma segments I–V, especially the ventral carinae on segments II–III and ventrolateral carinae on segment V. The subspecies can be distinguished by the following three features: 1) Anterior margin of carapace in M. e. thersites with very weak median concavity; while that of M. e. mongolicus either has a very weak median projection or is approximately straight. 2) Chela of M. e. thersites more robust; M. e. mongolicus with relatively less robust chela (Table 1). 3) Dorsal carinae on metasoma segments I–IV of M. e. thersites relatively weak, approximately obsolete anteriorly, moderately granular posteriorly; in contrast, dorsal carinae on metasoma segments I–IV of M. e. mongolicus much developed, moderately granular anteriorly, and with marked granules posteriorly. Distribution. — Mesobuthus eupeus thersites occurs in China (Xinjiang Uygur Autonomous Region), Kazakhstan, Uzbekistan, Tajikistan and Kyrgyzstan. Discussion. —According to the analysis of some species and subspecies of Mesobuthus based on molecular data by Gantenbein et al. (2003), the relationship between M. e. thersites and M. e. mongolicus is not very clear. After inspecting a significant number of specimens of these two subspecies from extensiveness regions, we discovered diagnos- tic characteristics (above) that were consistent among different geographical populations. Mesobuthus longichelus Sun & Zhu 2010 (Fig. 10) Mesobuthus longichelus Sun & Zhu 2010:5–10, figs. 1, 4–10, 17–21; Sun et al. 2010:36, 38–40, figs. 4, 12, 13, 19, 20, 23, 24, table 1. Material examined. —See Sun & Zhu (2010). Diagnosis. —See Sun & Zhu (2010). Distribution. — Mesobuthus longichelus occurs in China (Xinjiang Uygur Autonomous Region). Ecology. —See Sun & Zhu (2010). Mesobuthus martensii martensii (Karsch 1879) (Figs. 9, 10, Table 1) Buthus martensii Karsch 1879:112; Kishida 1939:51–67, plate I–IV. Buthus confucius Simon 1880:124–125 (synonymized by Karsch 1881:219). Buthus conficius [sic] Simon: Pocock 1889a:336–337, plate X– V, fig. 2a; Pocock 1889b:116; Birula 1898:133–134; Birula 1927:205–209; K ̈ stner 1941:231. Buthus martensi Karsch: Kraepelin 1899:25–26; Wu 1936:115– 117, fig. 1; Takashima 1944:51–53; Takashima 1945:75; Vachon 1948:61, fig. 4; Isshiki & Yonezawa 1960:117–123; Song et al. 1982:22–25, figs. 1–7; Song 1998:508, fig. 30:1. Buthus nigrocinctus (nec Androctonus nigrocinctus (Ehrenberg 1828): Thorell 1893:360–361. Mesobuthus martensi (Karsch): Vachon 1950:153; Vachon 1952:325; P ́rez 1974:26; Kova ˇ ́k 1992:183. Mesobuthus martensii (Karsch): Kova ˇ ́k 1998:115; Shi & Zhang 2005:474; Shi et al. 2007:216–223, figs. 1–3, table 1; Zhang & Zhu 2009:1–17, figs. 1–18, tables 1–8; Sun & Zhu 2010:10. Mesobuthus martensii martensii (Karsch): Fet & Lowe 2000:178; Qi et al. 2004:137–143, figs. 1–19, table 1; Zhu et al. 2004:113. Type specimens. —Type material not examined. Material examined. —CHINA: Gansu Province : Jingyuan County, Mitan Township, 36 u 35 9 N, 104 u 40 9 E, 5 August 2007, Z.Y. Di, Y.N. Fu and M.C. Xie, 1 K , 2 L (MHBU); Gaolan County, Dongwan Village, 36 u 20 9 N, 103 u 57 9 E, 4 August 2007, Z.Y. Di, Y.N. Fu and M.C. Xie, 1 K , 1 L (MHBU). Ningxia Hui Autonomous Region : Yinchuan City, Helan Mountain National Nature Reserve, Suyukou forest park, 38 u 42 9 N, 105 u 57 9 E, 14–17 August 2008, X.P. Wang and G.J. Yang, 10 K , 9 L , 1 juvenile (MHBU); Helan Mountain National Nature Reserve, Liutiao Clough, exact location unknown, 29 July 2008, X.P. Wang, 9 K , 10 L (MHBU). Inner Mongolia Autonomous Region : Alxa Zuoqi, Nansi, 38 u 39 9 N, 105 u 48 9 E, 21 July 2007, Z.Y. Di, Y.N. Fu and M.C. Xie, 25 K , 21 L , 8 juveniles (MHBU); Urad Zhongqi, Hailiutu Town, north hill (part of Yin Mountain), 41 u 36 9 N, 108 u 30 9 E, 15 July 2008, D. Sun and C.L. Zhang, 1 male (MHBU); Baotou City, Jiuyuan District, Agerutai Sumu, Meiligeng Gacha, 40 u 38 9 N, 109 u 27 9 E, Tongla and J.J. Wang, 15 August 2006, 3 K , 4 L , 3 juveniles (MHBU); Urad Zhongqi, Shilanji Township, north hill (part of Yin Mountain), 41 u 17 9 N, 107 u 29 9 E, 18 July 2008, D. Sun and C.L. Zhang, 1 K , 3 juveniles (MHBU). Shandong Province : Pingdu County, Daze Mountain, 36 59 9 N, 120 01 9 E, 5 May 2007, F.Y. Wang, 1 L and 4 juveniles (MHBU). Hebei Province : Quzhou County, Anzhai Town, Guzhuang Village, 36 u 38 9 N, 115 u 01 9 E, August 2004, X.Y. Gu, 19 K , 13 L (MHBU); Chicheng County, 40 u 54 9 N, 115 u 50 9 E, 2 October 2002, Z.S. Zhang, 2 K , 3 juveniles (MHBU); Longhua County, 41 u 18 9 N, 117 u 45 9 E, 14 June 2004, W.G. Lian, 5 K , 2 L (MHBU); Handan City, date and collector unknown, 4 K , 1 L (MHBU); Laishui County, 39 u 24 9 N, 115 u 42 9 E, 28 June 2004, J. Song, 20 K , 7 L (MHBU); Xiong County, 38 u 59 9 N, 116 u 07 9 E, 20 July 2004, C.Y. Fan, 3 K , 2 L (MHBU); Zhou County, Xiaowutai Mountain National Nature Reserve, 39 u 50 9 N, 114 u 37 9 E, 10 July 2004, F. Zhang, 21 K , 5 L (MHBU); Laiyuan County, 39 u 21 9 N, 114 u 41 9 E, date and collector unknown, 2 K (MHBU). Liaoning Province: Yingkou City, Dashiqiao County, Laodong Village, 40 u 30 9 N, 122 u 30 9 E, 14 July 2009, D. Sun, 8 K , 12 L (MHBU). Shanxi Province : Yangquan City, 37 u 51 9 N, 113 u 33 9 E, 3 May 2004, S.J. Zhao, 1 K , 2 juveniles (MHBU). Henan Province : Song County, Dazhang Township, Baligou, 34 u 04 9 N, 111 u 56 9 E, 12 July 2004, M.S. Zhu, 3 K , 2 L (MHBU). Other material examined, see Zhang & Zhu (2009). Diagnosis. —See Qi et al. (2004). Distribution. — Mesobuthus martensii martensii occurs in China (north, northeast, northwest), Mongolia, the Korean Peninsula and Japan. In China, M. martensii martensii appears to be restricted to south of latitude 43 u N and the north side of the Yangtze River, bordered by Helan Mountain, the Tengger and Mo Us Desert in the west and limited by the sea in the east (Shi et al. 2007). Ecology. —This species was found mainly in habitats composed of temperate and subtropical areas, often under rocks on sunny hillsides with many herbs and shrubs, but without leafy trees in natural environments. Few individuals were found on shaded hillsides of collecting locations, probably because of the diseases and mycotic infections caused by excessive humidity there (Song 1982). The burrow of M. martensii martensii often has an underground passage- way, generally 30–50 cm below ground level, where they can move to the deepest points when preparing for hibernation in late autumn. Mesobuthus martensii hainanensis (Birula 1904) Buthus confucius hainanensis Birula 1904:27. Mesobuthus martensii hainanensis (Birula): Fet & Lowe 2000:178; Qi et al. 2004:138, 142; Zhu et al. 2004:113; Zhang & Zhu 2009:1; Sun & Zhu 2010:2. Material examined. —No material examined; type material preserved in Zoological Institute, Russian Academy of Sciences, St. Petersburg, Russia (lost). Discussion. —The type material was collected on Hainan Island (Hainan Province) by O. Herz in 1895. In the original diagnosis by Birula (1904), only general coloration was used and only a single specimen of unknown sex was investigated. This subspecies remains, however, of dubious validity, mainly because it was never found again on Hainan Island or from adjacent areas, but also because no ...

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... Historically, the Przewalski's scorpion was first described from the eastern edge of the Tarim Basin, near Lob-nor and oasis of the Cherchen river (Birula, 1897). Earlier reports suggested that this species might wide spread in Xinjiang, northwest China Sun & Sun, 2011) and may also occur in Mongolia, Tajikistan and Uzbekistan (Fet et al., 2000). However, recent revisions (Fet et al., 2018;Kovařík, 2019) and our result of ecological niche modeling implied that its occurrence to the north (i.e. the Junggar Basin) and west (i.e. ...
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Until now, there are 26 scorpion species of 7 genera of 5 families recorded in Xizang (China). Xizang Autonomous Region (Tibet) is the scorpion biodiversity richest area in China (53 scorpion species of 12 genera of 5 families), also the highest altitude habitat of scorpions in the world. We present information of type specimens, an identification key of the scorpion species from Xizang, the distribution, updated feature pictures, and discussion on the disputed species. The redescriptions of Scorpiops jendeki Kovařík, 2000 (Yunnan) and Scorpiops tibetanus Hirst, 1911 (Xizang), comments and feature figures of species of genus Scorpiops are provided for identification.
... In contrast, these 2 lateral eyes were difficult to recognize when specimens were examined under normal white light (Figure 2. B). We also found different depictions on this number in previous publications, i.e. 5 in Kishida [9], 3 in Qi, et al. [10] and Sun & Sun [11]. ...
... Kovařík [50] found four lateral eyes for Butheolus species, and pointed out that ''the fourth eye'' ''may possibly be overlooked''. In our study, we found species M. martensii [9,10,11,15], M. caucasicus [11,15,16,17,51] and M. eupeus with their subspecies [11,12,13,14,15,51] were studied numerous of times. Though there was no lack of good descriptions with drawings or high-tech photography among these studies, e.g. ...
... Kovařík [50] found four lateral eyes for Butheolus species, and pointed out that ''the fourth eye'' ''may possibly be overlooked''. In our study, we found species M. martensii [9,10,11,15], M. caucasicus [11,15,16,17,51] and M. eupeus with their subspecies [11,12,13,14,15,51] were studied numerous of times. Though there was no lack of good descriptions with drawings or high-tech photography among these studies, e.g. ...
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This study reports the results of a re-analysis of the number of lateral eyes in extant buthids. Specimens studied were confined mostly to those from China and the adjacent areas. 353 specimens belonging to 20 species (subspecies) and 8 genera were rechecked and found to have 5 pairs of lateral eyes contrary to earlier published works which reported the presence of 3 pairs of lateral eyes only. Combined with reported examples collected through reference investigation including 63 species from 16 genera, our study here shows a total of 79 species from 21 genera of scorpions spanning Asia and Africa had 5 pairs of lateral eyes. Reasons for not observing the presence of the extra lateral eyes are discussed and new protocols for examining specimens including using UV light are proposed to aid lateral eye recognition. Besides, a majority of genera in Buthidae are suggested to be in “Five-eye” model and a re-examination of all previously published taxonomic studies of buthid species is highly recommended.