Euscorpius lycius, Yagmur, Ersen Aydin, Tropea, Gioele & Yesilyurt, Fatih, 2013

Yagmur, Ersen Aydin, Tropea, Gioele & Yesilyurt, Fatih, 2013, A new species of Euscorpius Thorell, 1876 (Scorpiones, Euscorpiidae) from south western Turkey, ZooKeys 348, pp. 29-45 : 31-37

Euscorpius lycius sp. n. Figs 1-7

Type material.

Holotype: 1) 1♂, Turkey, Muğla Province, Fethiye District, Faralya Village, 30.05.2012, 36°29'37"N, 29°08'07"E, 349 m, leg. F. Yeşilyurt & E. A. Yağmur (AZM).

Paratypes: 1) 3♀♀, 4♂♂. Muğla Province, Fethiye District, Faralya Village, 30.05.2012, 36°29'37"N, 29°08'07"E, 349 m, leg. F. Yeşilyurt & E. A. Yağmur (KUAM). Same data but 1♀, 1♂ (AZM) 2♀, 2♂ (GTC) 1♀, 1♂ (MSNB).

2) 1♂. Muğla Province, Fethiye District, Babadağ Mountain, 26.06.2013, 36°28'58"N, 29°12'04" E, 1132 m, leg E. A. Yağmur, M. Kesdek & Y. İlemin (AZM).

3) 1♂. Antalya Province, Kaş District, Gömücü Village, 15.05.2012, 36°24'15"N, 29°42'01"E, 976 m, leg. R. Kaya & A. Akkaya (AZM).

4) 2 juv. Antalya Province, Kaş District, İkizce Village, 5 km North, 13.04.2012, 36°21'30"N, 29°29'00"E, 1140 m, leg. E. A. Yağmur & D. Türk (AZM). Same data but 02.06.2012, 5♀♀, 1♂ (AZM), leg. E. A. Yağmur, M. Örgel & D. Türk (Fig. 8).

Etymology.

The specific epithet refers to the ancient Latin name of the collection area, which is Lycia.

Diagnosis.

A small Euscorpius species, total length 21-25 mm. Color of adults light brown-reddish with carapace and pedipalps darker. The number of trichobothria on the pedipalp manus ventral surface is 4 (3 V+Et 1); the number of trichobothria on the pedipalp patella ventral surface usually is 9 (in 86.54% of examined pedipalps); the number of trichobothria on pedipalp patella external surface usually is: eb=4, eba=4, esb=2, em=4, est=4, et=6-7 (et=6 in 53.84% and et=7 in 36.54% of examined pedipalps). The pectinal teeth count usually is 8 (8 in 66.66% and 9 in 29.16% of examined pectines) in males and 7 in females. Dorsal carinae of the metasomal segments I–IV granulated. Chela with a notch on fixed finger and scalloping of the movable finger in adult males, obsolete in females. Trichobothrium et occurs distally to the notch on the fixed finger, est occurs above the notch on the fixed finger and dsb occurs proximally to the notch of the fix finger.

Description of the holotype male.

Coloration: Very light brown-reddish with carapace and pedipalps darker. Granules on the femora of the legs, especially ventrally, dark. The sternites, pectines and genital operculum are very light brownish-whitish.

Carapace. Length 3.06 mm; posterior width 3.12. Finely granulated. Distance from the center of the median eyes to the anterior margin of the carapace is 39.21% of the prosoma; the length from the center of the median eyes to the posterior margin of the carapace is 60.79% of the prosoma. Length/Posterior width ratio 0.981 (Fig. 1A).

Mesosoma. Tergites finely granulated; sternites smooth. The area of overlap between the sternites is lighter in color. Pectinal teeth count is 9-9. The spiracles are very small and little visible, oval-shaped and it is inclined about 45° downwards towards outside.

Metasoma. Medium size with respect to body length. Dorsal carinae of segment I-IV are granulated, obsolete on the segment V; ventromedian carinae of segment I-III absent, barely visible angularities on the IV, ventromedian carinae on segment V granulated; ventrolateral carinae of segment I absent, on segments II and III obsolete, on segment IV formed by small spaced granules, on segment V is formed by serrulate granules (Fig. 2E, F).

Telson. Vesicle weakly swollen; smooth, with ventral setae of different sizes; telson height 1.26; telson length 3.24; vesicle length 2.52; vesicle width 1.20; L/H ratio of the vesicle 2 (Fig. 2A, B).

Pectines. Pectinalteeth count 9-9; middle lamellae count 5-5.

Genital operculum. Partially divided with genital papillae protruding.

Sternum. Pentagonal shape, type 2. Length similar to width, deep posterior emargination.

Pedipalp. Coxa and trochanter granulated. Femur: dorsal internal carinae formed by large dark tubercles;dorsal external carinae formed by slightly serrulated and spaced tubercles; intercarinal spaces uniformly granulated with fine granules; external median carinae serrulate; anterior median carinae formed by conical big dark tubercles (Fig. 1E, F). Patella length 2.58; patella width 1.02; dorsal internal carinae dark and crenulate with few larger tubercles distally; dorsal and ventral external carinae rough; ventral internal carinae dark and tuberculate; dorsal intercarinal tegument very finely granulated; ventral intercarinal tegument almost smooth with a few scattered very small granules; internal intercarinal tegument uniformly finely granulate. Dorsal patellar spur well developed (Fig. 1G, H). Chelal carina D1 isdistinctly strong, a bit darker and from smooth to rough; D4 little marked, roughly smooth with a few very low granules; V1 isdistinctly strong, rough and dark; V3 with a few scattered very minuscule granules; external carina rough; intercarinal tegument from smooth to rough except between carinae D4 and V3, granulate. Movable finger dentition: MD form a straight line of very small denticles closely spaced with a DD on the distal tip; OD formed of 7 denticles on movable finger and 6 denticles on fixed finger, immediately outside of MD, their size increases progressively but the terminal denticle is not very pronounced; ID formed of 7 denticles on movable finger and 6 denticles on fixed finger, spaced from MD, their size increases progressively but the terminal denticle is not very pronounced; IAD on both movable and fixed finger formed of 4 small denticles; L/W ratio of the chela 2.74 (Fig. 1I, J)

Trichobothria. Chela trichobothria series V standard: V=4/4 (3 V+Et 1); patella ventral (Pv): 9/9; Patella external (Pe): et=5/6, est=4/4, em=4/4, esb=2/2, eba=4/4, eb=4/4.

Legs. legs with two pedal spurs. Tarsal ventral row with 10-14 spinules (including the ventral distal spinule); 3 flanking pairs of tarsal setae adjacent to the ventral spinules row. Little marked granulation present above leg femora, a bit more marked on III leg; dark conical tubercles on ventral leg femora.

Chelicerae. smooth, without marbling, uniformly coloured; typical dentition pattern of Euscorpius genus ( Soleglad and Sissom 2001).

Variation. The variation observed in 26 studied specimens (12 males, 14 females) is as follows (left/right asymmetry not specified). Pectinal teeth in males (n=12): 7/8 (1), 8/8 (6), 8/9 (3), 9/9 (2); 8 in 66.66% and 9 in 29.16%; mean=8.25, SD=0.52. Pectinal teeth in females (n=14): 7/7 (12), 8/7 (2); 7 in 92.28% and 8 in 7.72%; mean=7.07, SD=0.26. Pedipalp patella trichobothria Pv (n=26): 9/10 (1), 9/9 (20), 8/9 (4), 8/8 (1); 9 in 86.54 % and 8 in 11.54 %; mean=8.90, SD=0.35. Pedipalp patella trichobothria Pe (n=26): et=?/6 (1), 5/6 (3), 6/6 (12), 7/7 (9), 7/8 (1); 6 in 54.90 % and 7 in 37.25 %; mean=6.35, SD=0.56. est=4/4 (26); em=4/3 (3), 4/4 (23); esb=2/2 (26); eba=4/3 (2), 4/4 (24); eb=3/4 (1), 4/4 (25). The telson vesicle in males is more swollen than in females: average L/H ratio of the vesicle is 1.93 in male and 2.28 in females. Dorsal patellar spur well developed. Average value of the length from center median eyes to anterior margin of the carapace is 40.30% of the carapace length. Average value of the length from center median eyes to posterior margin of the carapace is 59.70% of the carapace length.

Hemispermatophore. Were checked both right and left hemispermatophore of 5 specimens. Well developed lamina with well developed basal constriction, tapered distally; truncal flexure present and well developed; capsular lobe complex well developed, with acuminate process; ental channel spinose distally, exhibiting 8-11 tines in its crown (Fig. 7). The number of tines of the crown may be different between the right and the left hemispermatophore.