Neobisium (Blothrus) cf. vjetrenicae Hadži, 1932

Gardini, Giulio, 2018, Subterranean Neobisium (Pseudoscorpiones: Neobisiidae) from Albania, Revue suisse de Zoologie 125 (1), pp. 189-200 : 197-199

publication ID

https://doi.org/ 10.5281/zenodo.1196050

DOI

https://doi.org/10.5281/zenodo.5590720

persistent identifier

https://treatment.plazi.org/id/0380D900-9230-FF9D-FCA2-FB84FA176B8C

treatment provided by

Plazi

scientific name

Neobisium (Blothrus) cf. vjetrenicae Hadži, 1932
status

 

Neobisium (Blothrus) cf. vjetrenicae Hadži, 1932 View in CoL

Figs 27-29 View Figs 27-29

Neobisium (Blothrus) vjetrenicae Hadži, 1932: 102 View in CoL , figs 1-4. ‒ Hadži, 1933: 49, figs 1-2. ‒ Beier, 1939: 70, figs 84-85. ‒ Beier, 1963: 151, fig. 155.

Material examined: CGG; 1 ♂; Albania, Shkodër County, Shkodër, Bogë, Dotek Pass, Helmit Abyss , 1540 m a.s.l.; VIII.1995; S. Meggiorini leg.

Short description of adult (male): Carapace, chelicera, pedipalps and palpal coxae red-brown; pedipalps smooth, pleural membrane granular. Carapace 1.2 times as long as broad, without eyes or eye-spots, anterior margin with a triangular epistome; anterior row with 4, posterior row with 5 setae. Chaetotaxy of tergites I-XI 4:4:6:7:7:7:8:9:8:9:6. Chaetotaxy of sternites III-X: (4)28(3):(3)14(3):17:16:17:16:14:8. Chelicera 2.0 times as long as broad, palm with 6 setae, fixed finger with 10 subequal teeth, movable finger with a prominent tooth in the distal third; spinneret largely rounded, weakly prominent. Anterolateral process of coxa I squat, apically obtuse. Pedipalp ( Figs 27-29 View Figs 27-29 ): trochanter 2.6 times as long as broad, with one weak button-like tubercle on antiaxial face; femur 7.6 times as long as broad, weakly enlarged distally; patella 5.3 times as long as broad, weakly and gradually enlarged distally, club 2.54 times longer than pedicel; chela with pedicel 6.3 times as long as broad; hand of chela with pedicel 3.0 times as long as broad; fixed and movable chelal fingers homodentate, with 110 and 109 small and contiguous teeth with dental canals, respectively; trichobothria as in Figs 28-29 View Figs 27-29 ; relative position of trichobothria along chelal axis: it 0.14/ et 0.18/ est 0.22/ ist 0.40/ isb 0.76/ ib 0.87/ esb 0.90/ eb 0.91/ t 0.235/ st 0.41/ sb 0.725/ b 0.88; ratio between movable finger and hand of chela with pedicel 1.16; ratio between pedipalpal femur and movable finger 1.30; ratio between pedipalpal femur and carapace 2.10.

Measurements: Body length 5.3. Carapace 1.34 x 1.12 (0.91 anteriorly). Chelicera 0.88 x 0.44, movable finger length 0.57. Pedipalp: trochanter 0.99 x 0.38; femur 2.82 x 0.37; patella 2.28 x 0.43; chela with pedicel 3.90 x 0.62; hand with pedicel length 1.86; movable finger length 2.16.

Remarks: Neobisium vjetrenicae was described by Hadži (1932, German translation in Hadži, 1933) on the basis of a single male collected in the cave Pećina Vjetrenica (42°50’45”N, 17°59’02”E) near Zavala, Bosnia and Herzegovina. The species was subsequently redescribed by Beier (1939, reproduced in Beier, 1963) from topotypical specimens of both sexes.

The male from the Helmit Abyss, Albania, is here provisionally asigned to N. vjetrenicae , with which it shares the following characters: epistome triangular, posterior margin of carapace with 4 setae; tergites I-II with 4 setae; pedipalps smooth; chelal fingers homodentate, teeth small and contiguous; pedipalpal femur longer than movable finger, and movable finger longer than hand of chela with pedicel; chela with pedicel 6.3 times as long as broad; trichobothrium ist slightly distal to middle of fixed finger; trichobothrium st closer to t than to sb; anterolateral process of coxa I squat, apically obtuse.

Size and ratios of pedipalpal segments are similar in males from both caves: Vjetrenica - femur length 2.30- 2.32 (x7.4), patella 1.80-1.88 (x5.0), club/pedicel of patella x2.6, chela with pedicel 3.60-3.61 (x6.2), hand with pedicel 1.73 (x3.0), finger 1.90-2.02, finger/hand with pedicel x1.17-1.20, femur/finger x1.15-1.21; Helmit - femur length 2.82 (x7.6), patella 2.28 (x5.3), club/ pedicel of patella x2.54, chela with pedicel 3.9 (x6.3), hand with pedicel 1.86 (x3.0), finger 2.16, finger/hand with pedicel 1.16, femur/finger 1.30. In the male from Vjetrenica ( Beier, 1939: 70, fig. 84) trichobothrium ist of the fixed chelal finger seems to be more distal than in the male from Helmit ( Figs 28-29 View Figs 27-29 ) and the teeth on the chelal fingers are 130 in the male from Vjetrenica ( Hadži, 1933) versus 109-110 in the male from Helmit.

Key to adults of the Neobisium (Blothrus) View in CoL species from Albania

[ N. (B.) cf. vjetrenicae View in CoL not included]

1A Tergites I-II with 4:4 or 6:6 setae; ratio between pedipalpal finger and hand of chela with pedicel 1.1-1.7; ratio between pedipalpal femur and finger 0.95-1.3; movable chelal finger with trichobothrium st closer to t than to sb .................................................................................................................................................................................. 2

1B Tergites I-II with 4:6 setae; ratio between pedipalpal finger and hand of chela with pedicel 0.8-0.9; ratio between pedipalpal femur and finger 1.5-1.6; movable chelal finger with trichobothrium st halfway between sb and t ........ ................................................................................................................................................... N. (B.) latellai View in CoL n. sp.

2A Carapace with 4 setae in posterior row; pedipalps elongate: patella 5.3-8.1, chela with pedicel 6.3-8.6 times as long as broad; ratio between club and pedicel of patella 2.4-2.6 ..................................................................................... 3

2B Carapace with 6 setae in posterior row; pedipalps thick: patella 4.3-5.0, chela with pedicel 4.7-5.6 times as long as broad; ratio between club and pedicel of patella 1.65-1.95.................................................... N. (B.) valsuanii View in CoL n. sp.

3A Tergites I-II with 4:4 setae; ratio between pedipalpal finger and hand of chela with pedicel 1.4-1.5; length of pedipalpal chela 5.2-5.8; fixed chelal finger with trichobothrium ist just proximal to est; trichobothrium est midway between ist-it or closer to it; trichobothrium et at level of it ............................................... N. (B.) georgecastriotae View in CoL

3B Tergites I-II with 6:6 setae; ratio between pedipalpal finger and hand of chela with pedicel 1.6-1.7; length of pedipalpal chela 4.4-4.55; fixed chelal finger with trichobothrium ist just proximal to st, trichobothrium est closer to it than to ist; trichobothrium et midway between est-it .................................................................... N. (B.) albanicum View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Pseudoscorpiones

Family

Neobisiidae

Genus

Neobisium

Loc

Neobisium (Blothrus) cf. vjetrenicae Hadži, 1932

Gardini, Giulio 2018
2018
Loc

Neobisium (Blothrus) vjetrenicae Hadži, 1932: 102

Beier M. 1963: 151
Beier M. 1939: 70
Hadzi J. 1933: 49
Hadzi J. 1932: 102
1932
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