Orthochirus grosseri, Kovařík & Fet & Yağmur, 2020

Kovařík, FrantIšek, Fet, Victor & Yağmur, Ersen Aydın, 2020, Further review of Orthochirus Karsch, 1892 (Scorpiones: Buthidae) from Asia: taxonomic position of O. melanurus, O. persa, O. scrobiculosus, and description of six new species, Euscorpius 318, pp. 1-73 : 17-22

Orthochirus grosseri sp. n.

( Figures 79–105 , 343 , Table 2) http: //zoobank. org/urn: lsid: zoobank. org: act: 15713756-

558A -497B -8832-6E3BC4EFAD77

TYPE LOCALITY AND TYPE DEPOSITORY. Uzbekistan, Surxondaryo Province , 20 km N of Sherobod (Shirabad), 37°51.339'N 067°00.394'E, 668 m a. s. l. ; FKCP.

TYPE MATERIAL EXAMINED. Uzbekistan, Surxondaryo Province , 20 km N of Sherobod (Shirabad), 37°51.339'N 067°00.394'E, 668 m a. s. l., 17 May 2019, 1♀ (holotype) 1♀ 1♂ juv. (paratypes), leg. W. Grosser , FKCP.

ETYMOLOGY. The species epithet is a patronym honoring a Czech entomologist Walter Grosser, the collector of types of the new species.

DIAGNOSIS (♀).Total length of adult females 40–43 mm. laterally with fine punctation developed, spaces among punctae Trichobothrium d 2 on pedipalp femur is present but located smooth; metasoma II–III ventrally and laterally bumpy with on internal surface. Pectinal teeth number 18–20 in females. punctation reduced. Metasoma V dorsal surface mesially Movable finger of pedipalps with 9 rows of denticles, 8 ID smooth; metasoma I dorsally with 11–14 large granules. and no OD. Dorsal carinae on pedipalp patella present and Tergites roughly granulated. Sternite VII densely granulated. smooth. Metasoma I–II with 10 carinae, metasoma III with Pedipalp, metasoma and telson glabrous. Moderate tibial 6–8 carinae, metasoma IV–V with 2 incomplete dorsolateral spurs present on legs III and IV. Tarsomere I of legs I–III with carinae; ventrolateral carinae indicated on metasoma IV bristlecombs composed of 9–13 setae. Ratio length/width of and present on metasoma V. Metasoma IV–V ventrally and metasoma V 1.03 in females.

DESCRIPTION. Total length 40–43 mm of adult females. Measurements of the carapace, telson, segments of the metasoma and segments of the pedipalps are given in Table 2. For habitus, see Figs. 79–80 .

Coloration ( Figs. 79–80 ). Carapace, tergites, metasoma, and femur and patella of pedipalps and legs black. Chela of pedipalps reddish brown with black spots, fingers lighter. Tarsomeres of legs yellowish brown. Sternites reddish black with yellow median area indicated in posterior margin of sternite IV and developed on sternite V. Telson reddish black to black.

Mesosoma and carapace ( Figs. 81–82 , 98–99 ). Tergites with a median carina and is roughly granulated. Seventh sternite densely granulated with four granulated carinae, the other sternites partly granulated but smooth in middle and posteriorly. Pectine teeth number 20 in juvenile male and 18– 20 (1 x 18, 2 x 19, 1x20) in females.

Metasoma and telson ( Figs. 100–105 ). Metasoma I–II with 10 granulated carinae. Metasoma III–V lacks lateral and metasoma IV–V ventromedian carinae. Ventrolateral carinae are developed on metasoma I–III and indicated on metasoma IV–V, more on metasoma V, dorsolateral carinae are present on metasoma I–IV. Ventral carinae of metasoma I–III consist of large granules in one (metasoma II–III) or two (usually on metasoma I) rows. Metasoma I granulated laterally, metasoma III–V laterally punctate and smooth; granulation absent on dorsal surfaces of metasoma II–V. Metasoma I dorsally with 11–14 large granules. Fine punctation on metasoma IV–V ventrally developed, spaces among punctae smooth. Entire metasoma and telson glabrous. Telson smooth with punctation present ventrally.

Pedipalps ( Figs. 87–97 ). Trichobothrium d 2 on pedipalp femur is present but located on internal surface; trichobothrium e 1 is situated between trichobothria d 2 and d 4. Femur of pedipalps with five granulated carinae and is dorsally rather smooth. Patella has seven smooth carinae, and the chela has smooth carinae which may be discernible throughout the length of the fixed finger. The entire pedipalps are glabrous with several setae only. Movable fingers with 9 rows of denticles, 8 ID and no OD.

Legs ( Figs. 83–86 ). Moderate tibial spurs present on legs III and IV. Femur with four partly granulated carinae; patella with five rather smooth carinae; tibia smooth. Patella with only a few setae. Tibia with setae on the outer side of legs I–III. Tarsomere I of legs I–III with 9–13 long setae in females, legs IV with 2–4 setae. Tarsomeres I–II of all legs internally with two rather irregular rows of setae.

Measurements. See Table 2.

AFFINITIES. See affinities under description of O. formozovi sp. n.

DISTRIBUTION. Uzbekistan ( Fig. 343 ). Known only from the type locality .

Figures

Figure 343. Geographic distribution of the Orthochirus spp. found from Turkey to India. An approximate area where the lectotype of O. melanurus was collected is marked by red ellipse.

Figures 79–80. Orthochirus grosseri sp. n., holotype female, dorsal (79) and ventral (80) views. Scale bar: 10 mm.

Figures 81–97: Orthochirus grosseri sp. n., holotype female. Figures 81–82. Carapace and tergites I–IV (81), and sternopectinal region and sternites (82). Figures 83–86. Right legs I–IV, retrolateral aspect. Figures 87–97. Segments of pedipalps. Pedipalp chela, dorsal (87), external (88), and ventral (89) views. Pedipalp patella, dorsal (90), external (91), and ventral (92) views. Pedipalp femur and trochanter, internal (93), dorsal (94), and ventral (95) views. Pedipalp chela, movable (96) and fixed (97) fingers dentate margins. The trichobothrial pattern is indicated in Figures 87–91, 93–94 (white circles).

Figures 98–99. Orthochirus grosseri sp. n., holotype female, carapace and tergites (98), and sternopectinal region and sternites (99) under UV light.

Figures 100–105. Orthochirus grosseri sp. n., holotype female, metasoma and telson, lateral (100, 103), dorsal (101, 104) and ventral (102, 105), under white light (100–102) and UV light (103–105). Scale bar: 10 mm.