Neobisium (Ommatoblothrus) perezi Carabajal Márquez, García Carrillo & Rodríguez Fernández, 2011

Zaragoza, Juan A. & Pérez, Toni, 2013, Hypogean pseudoscorpions (Arachnida) from Jaén province (Andalusia, Spain), with descriptions of four new species and a new synonymy, Zootaxa 3700 (2), pp. 201-225 : 218-219

Neobisium (Ommatoblothrus) perezi Carabajal Márquez, García Carrillo & Rodríguez Fernández, 2011

( Fig. 4 )

Neobisium (Ommatoblothrus) perezi Carabajal Márquez, García Carrillo & Rodríguez Fernández, 2011: 123 , figs 26–30, table VI.

Neobisium (Ommatoblothrus) gev Carabajal Márquez, García Carrillo & Rodríguez Fernández, 2011: 125 –126, figs 31–35, table VII (syn. nov.).

Material. Spain, Andalucía, Jaén province: Hornos de Segura, Sima de los Alhaurinos (38º10′55.26″N, 2º47′16.79″W; 928 m. a.s.l.), 12.VIII.2010, 1 ♀. Sima del Campamento (38º11′10.10″N, 2º46′48.59″W; 887 m. a.s.l.), 06.I–03. II.2013, 1 ♀; 11.II.2012, 3 ♂; 11.VIII.2012, 1 ♂, 11 ♀, 2 T; 23.IX.2012, 1 ♂, 2 ♀, 2 T, 2 D; 08.II.2012 – 06.I.2013, 1 ♂, 1 ♀, 1 T. Sima de la Fractura II (38º11′11.58″N, 2º47′17.89″W; 965 m. a.s.l.), 31.V.2009, 1 P, 1 T; Sima del Laberinto (38º11′23.79″N, 2º46′47.23″W; 1025 m.a.s.l.), 23.IX.2012, 2 ♂, 2 ♀, 1 T, 2 D, 1 P. Sima de los Moluscos (38º10′53.97″N, 2º47′18.19″W; 904 m. a.s.l.), 10.VIII.2010, 1 ♀. Sistema de la Murcielaguina (38º12′59.35″N, 2º42′37.13″W; 1085 m.a.s.l.), 13.VIII.2007, 1 ♀; 27.VI.2010, 1 ♂, 5 ♀, 2 T, 2 D; 24.XII.2012 – 03.II.2013, 1 ♂, 1 T; 03.II.2013, 1 ♀. Sima La Secreta (38º12′12.16″N, 2º45′52.77″W; 970 m. a.s.l.), 11.VIII.2008, 2 T, 1 D. Sima de la Tubería (38º11′1.80″N, 2º47′10.28″W; 930 m. a.s.l.), 28.VIII.2011, 2 ♀, 1 T, 1 D. All the specimens lgt. G.E.V. and deposited in DEUA. Cazorla, Cueva Secreta del Poyo Manquillo (37°53′18.46″N, 2°52′12.80″W; 1500 m.a.s.l.), V.1953, 1 ♀, lgt. F. Español (MCNB: 87–9399 MZB).

Diagnosis. Troglomorphic facies. Anterior eyes usually with strongly flattened lens, posterior eyes reduced to eye-spots. Carapace with 21–25 setae, 4 on the anterior and 5–9 on posterior margin; epistome prominent, triangular. Tergites I–IV with 5–6:5–6:6–10:10–12 setae. Spinneret prominent and rounded, slightly smaller in males. Pedipalp femur ratio 6.2–7.0 in males, 6.0– 6.6 in females, femur usually slightly longer than movable chelal finger; chela+ ratio 6.0– 6.6 in males, 5.3–6.0 in females; hand+ ratio 2.7–2.8 in males, 2.3–2.6 in females, widest in basal half, ratio movable finger/hand+ 1.3–1.5; teeth of movable finger all well developed; trichobothrium ist distad of middle of finger.

Measurements and ratios. Specimens from Sima del Laberinto, type locality of N. (O.) perezi . Males. Carapace 1.08/0.93 (1.2). Pedipalp: femur 1.76–1.82/0.28–0.29 (6.2–6.3); patella 1.37–1.42/0.32–0.34 (4.2–4.3); chela+ 2.88–3.16/0.48 (6.0–6.6); chela - 2.68–2.94 (5.6–6.1); hand+ 1.28–1.35 (2.7–2.8); hand - 1.08–1.13 (2.3–2.4); movable finger 1.80–1.82; ratio movable finger/hand+ 1.3–1.4; ratio chela+/carapace 2.7; femur/carapace 1.6; femur/movable finger 1.0; femur/patella 1.3; patella/hand+ 1.0–1.1. Distance trichobothria ib–ist 1.4–1.6 times that between ist and apex (both sexes). Females. Carapace 1.0/0.9 (1.1). Pedipalp: femur 1.76–1.87/0.28–0.31 (6.0– 6.3); patella 1.35–1.44/0.32–0.36 (4.0–4.2); chela+ 2.92–3.09/0.48–0.58 (5.3–6.0); chela - 2.74–2.87 (4.9–5.7); hand+ 1.26–1.34 (2.3–2.6); hand - 1.08–1.12 (1.9–2.2); movable finger 1.74–1.88; ratio movable finger/hand+ 1.4; ratio chela+/carapace 2.9; femur/carapace 1.8; femur/movable finger 1.0; femur/patella 1.3; patella/hand+ 1.07.

Specimens from Sima del Campamento. Males. Carapace 1.00–1.08/0.88–0.92 (1.1–1.2). Pedipalp: femur 1.74–1.93/0.26–0.28 (6.7–7.0); patella 1.30–1.40/0.31–0.32 (4.2–4.3); chela+ 2.83–3.07/0.46–0.48 (6.2–6.4); chela - 2.63–2.87 (5.7–6.0); hand+ 1.22–1.33 (2.7–2.8); hand - 1.02–1.13 (2.2–2.4); movable finger 1.64–1.77; ratio movable finger/hand+ 1.3–1.4; ratio chela+/carapace 2.8; femur/carapace 1.7–1.8; femur/movable finger 1.0–1.1; femur/patella 1.3–1.4; patella/hand+ 1.0–1.1. Distance trichobothria ib–ist 1.3–1.6 times that between ist and apex (both sexes). Females. Carapace 1.02–1.16/0.78–0.98 (1.2–1.3). Pedipalp: femur 1.66–1.8/0.26–0.28 (6.4–6.5); patella 1.24–1.4/0.31–0.34 (4.0–4.1); chela+ 2.84–3.04/0.47–0.53 (5.8–6.0); chela - 2.66–2.86 (5.4–5.7); hand+ 1.19–1.28/0.47–0.53 (2.4–2.5); hand - 1.01–1.1 (2.1–2.2); movable finger 1.68–1.82; ratio movable finger/hand+ 1.4; ratio chela+/carapace 2.6–2.8; femur/carapace 1.6; femur/movable finger 1.0; femur/patella 1.3; patella/hand+ 1.0– 1.1.

Specimens from Sistema de la Murcielaguina, type locality of N. (O.) gev . Male. Carapace 0.96/0.84 (1.1). Pedipalp: femur 1.77/0.26 (6.8); patella 1.29/0.31 (4.1); chela+ 2.87/0.44 (6.5); chela - 2.67 (6.1); hand+ 1.20 (2.7); hand - 1.00 (2.3); movable finger 1.7; ratio movable finger/hand+ 1.4; ratio chela+/carapace 3.0; femur/carapace 1.8; femur/movable finger 1.0; femur/patella 1.4; patella/hand+ 1.1. Distance trichobothria ib–ist 1.2–1.4 times that between ist and apex (both sexes). Females. Carapace 1.00–1.17/0.87–0.93 (1.1–1.3). Pedipalp: femur 1.78–1.83/ 0.27–0.29 (6.3–6.5); patella 1.30–1.33/0.32–0.34 (3.9–4.0); chela+ 2.87–3.0/0.5–0.52 (5.6–5.8); chela - 2.69–2.81 (5.3–5.4); hand+ 1.22–1.25 (2.4–2.5); hand - 1.04–1.06 (2.0–2.1); movable finger 1.68–1.78; ratio movable finger/ hand+ 1.3–1.4; ratio chela+/carapace 2.6–2.9; femur/carapace 1.5–1.8; femur/movable finger 1.0–1.1; femur/patella 1.3–1.4; patella/hand+ 1.1.

Specimens from Sima de los Alhaurinos, Sima de los Moluscos and Sima de la Tubería. Females. Carapace 0.98–1.10/0.82–0.94 (1.1–1.2). Pedipalp: femur 1.64–1.86/0.26–0.31 (6.0–6.6); patella 1.24–1.42/0.30–0.36 (3.9– 4.2); chela+ 2.82–3.06/0.48–0.55 (5.6–5.9); chela - 2.64–2.86 (5.2–5.5); hand+ 1.16–1.33 (2.4–2.6); hand - 0.98–1.13 (2.0–2.2); movable finger 1.66–1.75; ratio movable finger/hand+ 1.3–1.5; ratio chela+/carapace 2.8–3.0; femur/ carapace 1.6–1.8; femur/movable finger 1.0–1.1; femur/patella 1.3–1.4; patella/hand+ 1.1. Distance trichobothria ib–ist 1.3–1.6 times that between ist and apex.

Distribution. Andalusia, Spain.

Remarks. Carabajal Márquez et al. (2011) described the closely related species Neobisium (O.) perezi and Neobisium (O.) gev from small samples. The differences they used to separate them were: chelal hand widest proximad of middle, ratio trichobothria ib – ist / ist– apex 1.47–1.57 in N. (O.) perezi , as opposed to chelal hand widest at middle, ratio trichobothria ib – ist / ist– apex 1.21 in N. (O.) gev , as well as the different chelal ratios.

Analysis of a large sample of specimens from the type localities of both species and other caves of the same municipality shows a high variability in the chelal ratios, which overlaps the published data of both species. The same applies to the widest part of the chelal hand, which show subtle variations between individuals in the same cave, and to the ratio ib – ist / ist– apex. In conclusion, the two species are here considered to be subjective synonyms. As first revisers, we give N. (O.) perezi precedence over N. (O.) gev .

The female specimen from Cueva Secreta del Poyo Manquillo, presents slightly lower pedipalpal ratios than the other populations. We tentatively assign this specimen to N. (O.) perezi until new specimens are collected in that cave to allow a better comparison.

Figures

FIGURES 2 – 5. Habitus of living specimens. 2, Chthonius (E.) perezi Carabajal Márquez, García Carrillo & Rodríguez Fernández, 2011, Sistema de la Murcielaguina; 3, Chthonius (E.) espanyoli sp. nov., Complejo del Arroyo de la Rambla (PB – 4); 4, Neobisium (O.) perezi Carabajal Márquez, García Carrillo & Rodríguez Fernández, 2011, Sima del Campamento; 5, Allochernes masi (Navás, 1923), with the woodlouse Porcellio incanus Budde-Lund, 1879, Cueva de la Morciguilla.