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)