Orthochirus, Karsch, 1892

Kovařík, František & Navidpour, Shahrokh, 2020, Six new species of Orthochirus Karsch, 1892 from Iran (Scorpiones Buthidae), Euscorpius 312, pp. 1-41 : 38

Key to Orthochirus of Iran, Turkey and Iraq

1. Metasoma V dorsal mesially densely granulated (figs. 159–160 in Kovařík et al., 2019: 27). ........................... 2

– Metasoma V dorsal mesially smooth or with several fine granules only ( Fig. 134 ). ............................................... 4

2. Metasoma II–III ventrally and laterally smooth, without granules, punctate and bumpy (fig. 171 in Kovařík et al., 2019: 28). ................... O. fomichevi Kovařík et al., 2019

– Metasoma II–III ventrally and laterally granulate (fig. 173 in Kovařík et al., 2019: 28.............................................. 3

3. Metasomal segments wide (fig. 159 in Kovařík et al., 2019: 27), ratio length/width of metasoma V is in males 1.06–1.11. Ventral and lateral surfaces of metasoma IV–V are densely granulate (fig. 173 in Kovařík et al., 2019: 28). ........................................... O. iranus Kovařík, 2004

– Ratio length/width of metasoma V is in males 1.18– 1.24. Ventral and lateral surfaces of metasoma IV–V are sparsely granulate (fig. 116 in Kovařík et al., 2019: 20).. ........................................ O. mesopotamicus Birula, 1918

4. Metasoma hirsute. ......................................................... 5

– Entire metasoma glabrous (short, thin setae might issue from some punctae) ( Figs. 222–224 ). ........................... 8

5. Metasoma densely hirsute ( Fig. 225 ). ........................... 6

– Metasoma sparsely hirsute. .............................................. ....................................... O. gruberi Kovařík & Fet, 2006

6. Pedipalp patella with dorsal carinae granulated (fig. 58 in Kovařík et al., 2019: 11). .................................................. ................................. O. gantenbeini Kovařík et al., 2019

– Pedipalp patella with dorsal carinae smooth ( Fig. 146 ). 7

7 Pedipalp femur dorsal granulated ( Fig. 149 ). Sternite VII densely granulated (136). .............. O. masihipouri sp. n.

– Pedipalp femur dorsal smooth (fig. 70 in Kovařík et al., 2019: 11). Sternite VII rather sparsely granulated (fig. 48 in Kovařík et al., 2019: 9). ............................................... ....................... O. stockwelli (Lourenço & Vachon, 1995)

8. Sternite VII smooth, without developed granulate carinae (fig. 156 in Kovařík et al., 2019: 27). ............................... ................................................... O. iraqus Kovařík, 2004

– Sternite VII usually at least partly granulated, always with four developed granulated carinae ( Figs. 21 and 66 ). ... 9

9. Pedipalp movable finger dentition with 0–1 external (OD/ OAD) denticles. ............................ O. semnanensis sp. n.

– Pedipalp movable finger dentition with 3–9 external (OD/ OAD) denticles. ........................................................... 10

10. Metasoma IV–V ventrally only shallowly punctate and in males punctation may be altogether absent. ................ 11

– Punctation on metasoma IV–V ventrally developed. .. 12

11. Ventral carinae of metasoma I–III consist of a row of large granules. ................................... O. varius Kovařík, 2004

– Ventral carinae of metasoma I–III consist of small granules irregularly in two or three rows. ........................ ................................................. O. hormozganensis sp. n.

12. Tergites roughly granulated in middle but laterally smooth with several small granules at least in the male ( Fig. 65 ). ....................................................... O. kermanensis sp. n.

– Entire tergites roughly granulated at least in the male ( Fig. 160 ). ............................................................................ 13

13. Sternite VII densely granulated among carinae. ......... 14

– Sternite VII smooth medially with several solitary granules among carinae. .............................................. 16

14. Pedipalp patella with dorsal carinae smooth. Anterior median part of carapace smooth, with granules medially only ( Fig. 199 ). ............................................................ 15

– Pedipalp patella with dorsal carinae granulated. Anterior median part of carapace densely granulated. ................... ................................... O. navidpouri Kovařík et al., 2019

15. Tarsi of third legs with 7–10 bristles, long in both sexes. ................................. O. carinatus Navidpour et al., 2019

– Tarsi of third legs with 4–6 bristles, long in female and short in male. ........................................ O. vignolii sp. n.

16. Pedipalp femur length/width ratio 4.1–4.3 in male, 3.3– 3.5 in female. ........................................ O. kucerai sp. n.

– Pedipalp femur length/width ratio 2.7–3.0 in both sexes. ...................................................................................... 17

17. Tarsi of leg III with long bristles, which form a reduced bristlecomb. At least femur of legs dark. Pedipalp chela dark. .................................. O. zagrosensis Kovařík, 2004

– Tarsi of leg III with short bristles, which do not form a bristlecomb. Legs usually yellow. Pedipalp chela yellow. ..................... O. farzanpayi (Vachon & Farzanpay, 1987)

Figures

Figures 130–134. Orthochirus masihipouri sp. n., holotype female, metasoma IV–V and telson lateral (130), metasoma and telson, lateral (131), ventral (132), and dorsal under white light (133) and UV light (134). Scale bar: 10 mm (131–133).

Figures 222–227: Metasoma and telson in ventral views under UV light, holotypes of newly described species. Figure 222. Orthochirus hormozganensi sp. n., male. Figure 223. O. kermanensis sp. n., male. Figure 224. O. kucerai sp. n., male. Figure 225. O. masihipouri sp. n., female. Figure 226. O. semnanensis sp. n., male. Figure 227. O. vignolii sp. n., male.

Figures 137–153: Orthochirus masihipouri sp. n., holotype female. Figures 137–138. Carapace and tergites (137), and sternopectinal region and sternites (138). Figures 139–142. Left legs I–IV, retrolateral aspect. Figures 143–153. Segments of pedipalps. Pedipalp chela, dorsal (143), external (144), and ventral (145) views. Pedipalp patella, dorsal (146), external (147), and ventral (148) views. Pedipalp femur and trochanter, dorsal (149), internal (150), and ventral (151) views. Pedipalp chela, movable (152) and fixed (153) fingers dentate margins. The trichobothrial pattern is indicated in Figures 144–147, 149–150 (white circles).

Figures 20–22. Orthochirus hormozganensis sp. n., holotype male, carapace and tergites (20), sternopectinal region and sternites (21), and metasoma and telson dorsal (22) under UV light.

Figures 65–67. Orthochirus kermanensis sp. n., holotype male, carapace and tergites (65), sternopectinal region and sternites (66), and metasoma and telson dorsal (67) under UV light.

Figures 160–167: Orthochirus semnanensis sp. n., holotype male. Figures 160–163. Carapace and tergites under UV light (160) and white light (161), and sternopectinal region and sternites under UV light (162) and white light (163). Figures 164–167. Left legs I–IV, retrolateral aspect.

Figures 199–201. Orthochirus vignolii sp. n., holotype male, carapace and tergites (199), sternopectinal region and sternites (200), and metasoma and telson dorsal (201) under UV light.