Barbaracurus winklerorum Kovařík & Lowe & Šťáhlavský 2018, sp. n.
Creators: name: Kovařík, František
name: Lowe, Graeme
name: Šťáhlavský, František
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Scorpiones
Buthidae
Barbaracurus
Barbaracurus winklerorum

description: Barbaracurus winklerorum sp. n.
(Figures 8, 24, 32, 66–69, 76–77, 85–86, 101–102, 147– 193, 265, Table 2)
http://zoobank.org/urn:lsid:zoobank.org:act:AB816A 91-BF29-49A3-B3BC-E07486594EDF
TYPE LOCALITY AND TYPE DEPOSITORY. Oman, Jabal Sayq, Deem, 16°41'78"N 53°08'20"E, ca 680 m a.s.l., ZSMC.
TYPE MATERIAL EXAMINED. Oman, Jabal Sayq, Deem, 16°41'78"N 53°08'20"E, ca 680 m a.s.l. (Fig. 265), 20.XII.2001, UV detection, between and on high grass, 22.00-22.45 hour, leg. A. Winkler, 1♂ (holotype), ZSMC, 2♂ (paratypes), FKCP, GLPC; Jabal Sayq, Kadrafi, 16°41'09"N 53°08'09"E, ca 780 m a.s.l., 2 0. XII.2001, UV detection, between high grass, 21.00- 21.45 hour, leg. A. Winkler, 1♀ (paratype), ZSMC; Jabal Sayq, Deem, 16°41'09"N 53°08'20"E, ca 680 m a.s.l., 20.XII.2001, UV detection, 22.00-22.45 hour, leg. A. & B. Winkler, 1♀ (paratype), FKCP; Jabal Sayq, W. of Daykhut, 16°43'40"N 53°16'45"E, ca 250 m a.s.l., 29.I.2000, UV detection, rocky slope, under wood on sandy soil in smaller shrubs, leg. A. Winkler, 1♂ 1♀ (paratypes), NHMB.
ETYMOLOGY. The specific epithet honors Alexander Winkler and his wife Birgit Winkler (Munich, Germany) for their invaluable contributions to the knowledge of the scorpion fauna of Oman.
DIAGNOSIS. Total length of adult males 25–29 mm, adult females 30–34 mm. Coloration pale yellow to light orange, chelicerae yellow without reticulation. Pedipalp chela manus wider in male than female, chela length/ width ratio 4.5–4.7 in males and 5.8–5.9 in females; proximal margins of pedipalp fingers of female straight (Fig. 69, 173, 192), of male weakly undulate but leave no gap with fingers closed (Figs. 67, 164, 189); dentate margin of movable finger armed with 6 rows of granules, and a short apical row of 4 denticles (Fig. 8, 180–181); most proximal granule row with one external accessory granule. Pectines with 18–20 teeth in both sexes. Hemispermatophore basal lobe a prominent scoop-like lamina (Figs. 24, 32). Metasoma narrow, metasoma V length/width ratio is 2.40–2.46 in males and 2.56–2.5 8 in females (Figs. 76–77); metasoma I with 10 carinae, II–IV with 8 carinae. Telson setose, bearing numerous long macrosetae and short, pointed subaculear tubercle; vesicle smooth, elongate, ellipsoidal or pyriform, telson length/depth ratio 2.70–2.72 in both sexes; aculeus slender, curved, shorter than vesicle.
DESCRIPTION. Total length of adult males 25–29 mm, of adult females 30–34 mm. Measurements of the carapace, telson, segments of the metasoma and segments of the pedipalps are given in Table 2. Base color is pale yellow to light orange (Figs. 147–150, 153–181). Chelicerae are yellow without reticulation (Figs. 153–154). Sexual dimorphism minor, adult males with wider pedipalp chela than females, pedipalp chela length/width ratio 4.5–4.7 in males and 5.8–5.9 in females; pedipalps fingers are shorter in males, the fingers of females are straight, while those of males are proximally undulate with opposing margins that make contact and leave no gap when the fingers are closed (Figs. 67, 164); no sexual difference in length and width of metasomal segments.
PEDIPALP (Figs. 163–181, 185–193). Pedipalp mostly very sparsely hirsute, but more densely so on ventral surface of movable finger. Femur granulated, with five granulose carinae. Patella almost smooth with seven granulose carinae developed. Chela smooth with traces of carinae visible; fingers long, curved, with 7 granule rows and short apical row of 4 denticles on dentate margins; the most proximal row with one external and no internal accessory granule.
CARAPACE (Figs. 153–154, 182). Slightly trapezoidal (narrower anteriorly) and slightly longer than wide, or as long as wide; anterior margin concave, with some short microsetae. Carination absent. Median and posterior lateral furrows wide and deep, others vestigial to absent. Tegument densely and coarsely granulose. Median eyes large and raised; four or five pairs of lateral eyes: three major ocelli aligned along each anterolateral corner, plus two minor ocelli that may be vestigial or absent.
MESOSOMA (Figs. 147–150, 153–156). Tergites I–VI bear a single conspicuous median carina; tergite VII bears five well-defined carinae (median, submedians and laterals), which are long and serrate to crenulate. All tergites densely and coarsely granulose mainly on posterior parts. Sternum type 1, triangular in shape; medial depression large. Pectines extending to around a quarter of sternite IV in male and third quarter of sternite III in female. Tooth count 18–20 in both sexes (mean: 19.333 5♂ combs, 19.666 6♀ combs). Pectines with 3 marginal lamellae and 7–8 middle lamellae. Sternites lacking carinae, surfaces smooth and sparsely setose. Posterior margin of sternite V without smooth median patch in both sexes. Sternite VII with four well-defined carinae, which are long and serrate to crenulate.
HEMISPERMATOPHORE (Figs. 24, 32, 151–152). Flagelliform. Trunk long, narrow, gradually widening basally. Capsule region very short, length measured from basal lobe only 9% of trunk length. Flagellum short, pars recta ca. 2.5 times length of capsule, pars reflecta tapering to thin, hyaline filament at least as long as pars recta. Sperm hemiduct with 2 elongated lobes, posterior lobe broad, subtriangular with distinct carina extending its entire length, anterior lobe narrow, more uniform in width, separated from posterior lobe by rounded aperture at base. Basal lobe forming a long, scoop-like lamina, prominently projecting from convex surface of capsule, extending along oblique, transverse axis from anterior base of posterior lobe to base of flagellum where it terminates in blunt, thickened protrusion.
L EGS (Figs. 101–102). Tarsomeres bearing two rows of macrosetae on their ventral surface and numerous macrosetae on other surfaces; bristle combs absent. Femur bearing only solitary macrosetae. Femur surface coarsely granulose, femur and patella with carinae developed. Moderate tibial spurs present on leg IV.
METASOMA AND TELSON (Figs. 76–77, 157–162, 183– 184). All segments with granulate, completely developed carinae, including carinae on segment V in males. The carinae are composed of minute, rounded, equal-sized, evenly spaced granules. The first metasomal segment has a total of 10 carinae, the second through fourth segments have eight carinae, and the fifth segment has five carinae. All metasomal segments are very sparsely granulated. Metasoma is very sparsely hirsute. Telson smooth with only a weakly indicated ventral carina and a dense cover of long setae mainly on the ventral surface. Subaculear tubercle short and pointed. Vesicle elongate, ellipsoidal or pyriform, telson length/depth ratio 2.70– 2.72 in both sexes. Aculeus slender, curved, shorter than vesicle.
description: Published as part of Kovařík, František, Lowe, Graeme & Šťáhlavský, František, 2018, Review of the genus Babycurus Karsch, 1886 (Arachnida, Scorpiones, Buthidae), with descriptions of Barbaracurus gen. n. and two new species from Oman and Yemen, pp. 1-41 in Euscorpius 267 on pages 27-29, DOI: 10.5281/zenodo.6544157