Barbaracurus, Kovarik, Lowe et Stahlavsky, 2018

Kovařík, František, Lowe, Graeme, Šťáhlavský, František & Hurre, Ali Abdi, 2019, Scorpions of the Horn of Africa (Arachnida, Scorpiones). Part XX. Barbaracurus feti sp. n. from Somaliland (Buthidae), Euscorpius 280 (294), pp. 1-11 : 10

Key to species of Barbaracurus

1 Pedipalp movable finger without an external accessory granule midway along most proximal granule row. ...... 2

– Pedipalp movable finger with an external accessory granule midway along most proximal granule row.. ...... 3

2 Base color uniformly yellow or orange, without any darker markings; sternite VII with very weak carination ............ ........................................... B. prudenti (Lourenço, 2013)

– Base color yellow with brown spots on carapace, dark stripes on tergites, dark pedipalp patella and metasoma V; sternite VII with 4 well developed carinae ....................... ............................................... B. ugartei ( Kovařík, 2000)

3 Pedipalp movable finger with 6 rows of granules. ........ 4

– Pedipalp movable finger with 7 rows of granules. ........ 7

4 Pedipalp chela with narrower manus, chela length/ width ratio 4.3–5.6, finger margins weakly undulate at base, not leaving gap when closed ( Figs. 16 and 18 , and figs. 81, 84, 86 in Kovařík et al., 2015) ..............................................5

– Pedipalp chela with broader manus, chela length/ width ratio 3.4–4.2, finger margins strongly undulate at base, leaving wide gap when closed ....................................... 6

5. Total length 22.5 mm in male, 32.1–32.25 mm in females; pectines with 16–17 teeth in both sexes; distributed in Ethiopia and Somalia.. B. subpunctatus (Borelli, 1925)

– Total length 31.25 mm in male, 38.80 mm in female; pectines with 25–27 teeth in both sexes; distributed in Somaliland. ................................................... B. feti sp. n.

6 Telson vesicle pyriform in lateral profile, deeper anteriorly (figs. 83–84 in Kovařík et al., 2018); telson length/ depth ratio 2.75–2.89; pedipalp movable finger of female very weakly undulate at base. ....... B. somalicus (Hirst, 1907)

– Telson vesicle symmetric in lateral profile (figs. 76–77 in Kovařík et al., 2015); telson length/ depth ratio 2.60–2.73; pedipalp movable finger of female moderately undulate at base. ................... B. sofomarensis ( Kovařík et al., 2015)

7 Pedipalp chela with broader manus (figs. 58, 60 in Kovařík et al., 2018), chela length/ width ratio 4.28 (♀), 3.42 (♂); telson more bulbous, length/depth ratio 2.27–2.37 (♀, ♂); distributed in Africa. ...... B. zambonellii (Borelli, 1902)

– Pedipalp chela with narrower manus (figs. 62, 64, 66, 68, 210, 212 in Kovařík et al., 2018), chela length/ width ratio 4.73–6.12 (♀, ♂); telson ellipsoidal or pyriform, length/ depth ratio 2.63–2.89 (♀); distributed in Arabia. ........... 8

8 Telson more slender (figs. 81–82 in Kovařík et al., 2018), length/depth ratio 2.89 (♀), 2.70 (♂); found in Al Hajar mountains of northern Oman. ... B. exquisitus (Lowe, 2000)

– Telson less slender (figs. 85–87 in Kovařík et al., 2018), length/depth ratio 2.63–2.72 (♀); not found in northern Oman ..............................................................................9

9 Larger size, 40–42 mm (♀); less slender metasoma, metasoma V length/width ratio 2.30–2.46 (♀) ................. .................................. B. yemenensis Kovařík et al., 2018

– Smaller size, 30–34 mm (♀), 25–29 mm (♂); more slender metasoma, metasoma V length/width ratio 2.56–2.58 (♀) ................................ B. winklerorum Kovařík et al., 2018

Figures

Figures 15–27: Barbaracurus feti sp. n. Figures 15–16. Paratype female. Pedipalp chela, dorsal (15), and external (16) views. Figures 17–27. Holotype male. Pedipalp chela, dorsal (17), external (18), and ventrointernal (19) views.Pedipalp patella, dorsal (20), external (21), and ventral (22) views. Pedipalp femur and trochanter, internal (23), ventral (24) and dorsal (25) views. Pedipalp chela, movable (26) and fixed (27) fingers dentate margin. The trichobothrial pattern is indicated in Figures 16–21, 23, and 25 (white circles).