Occidenchthonius ruizporteroae (Carabajal Márquez, García Carrillo & Rodríguez Fernández, 2001) Carabajal Marquez, Garcia Carrillo & Rodriguez Fernandez, 2001

Zaragoza, Juan A., 2017, Revision of the Ephippiochthonius complex in the Iberian Peninsula, Balearic Islands and Macaronesia, with proposed changes to the status of the Chthonius subgenera (Pseudoscorpiones, Chthoniidae), Zootaxa 4246 (1), pp. 1-221 : 195-197

Occidenchthonius ruizporteroae (Carabajal Márquez, García Carrillo & Rodríguez Fernández, 2001) , n. comb., nom. emend.

( Fig. 309 )

Chthonius (Ephippiochthonius) ruiz-porteroi Carabajal Márquez, García Carrillo & Rodríguez Fernández 2001b: 177 –180, figs 10–13, table III.

Chthonius (Ephippiochthonius) ruiz-porteroi: Zaragoza 2007: 19.

Type locality. Spain, Andalusia, Almería province, Sorbas, Complejo GEP (37°07′13″N, 02°03′06″W; 412 m a.s.l.).

Distribution. Spain: Andalusia.

Diagnosis (♂ ♀). A large, hypogean, strongly troglomorphic Occidenchthonius species of the verai -group. Movable cheliceral finger without isolated subapical tooth (di) and with prominent spinneret in both sexes, lyrifissure ldb present; without eyes or eye-spots, anterior margin of carapace with 2–3 preocular microsetae on each side, posterior margin with 2 macrosetae; chelal hand weakly depressed at level of ib / isb, with a short, low hump distad of ib / isb and very gentle slope between trichobothria ib / isb and eb; trichobothrium ist distad of lyrifissure fb; fixed chelal finger with 19–21 teeth; distal two-thirds of movable chelal finger with 14 pointed teeth with dental canals, basal third of movable chelal finger with 6–8 rounded, partially fused, vestigial teeth, without canals, on weakly raised and short lamina; pedipalpal femur (♂) 8.2–9.4, (♀) 8.0–8.6 times longer than broad, length (♂) 0.94–0.99 mm, (♀) 1.02–1.08 mm; chela (♂) 7.1–7.7, (♀) 6.9–7.2 times longer than deep, length (♂) 1.28–1.34 mm, (♀) 1.40–1.45 mm; ratio movable chelal finger/chelal hand (♂) 1.7–1.8, (♀) 1.6–1.7; lacking lyrifissures ma1, ma2 and hp, all other chelal lyrifissure patterns present with their standard complements.

Type material examined. ♀ paratype ( MNCN), Spain, Andalusia, Almería province, Sorbas: Complejo GEP (37°07′13″N, 02°03′06″W; 412 m a.s.l.), 21.IX.2000, leg. C. Ruiz-Portero.

Non-type material examined. 1 ♂ (DEUA), in bad condition, Sorbas, Cueva Covadura (37°05′32″N, 02°06′27″W; 336 m a.s.l.), 24.I.2001, leg. C. Ruiz-Portero.

Description (♂ ♀). Large, hypogean, strongly troglomorphic species. Integument depigmented; very weak hispid granulation on lateral surfaces of carapace, on cheliceral hand and on bases of chelal fingers.

Carapace slightly longer than broad, constricted posteriorly; medial part of anterior margin weakly prominent, without epistome, and strongly dentate. Without eyes or eye-spots. Chaetotaxy: 18 setae, without preocular microsetae, 2 setae in posterior row, formula 4:6:4:2:2, anteromedial setae 0.13 mm long, sublateral ocular setae 0.09 mm.

Cheliceral hand with 6 setae and 2–3 lateral microsetae, seta vb short (0.06 mm long), microseta 0.03–0.04 mm; hand with 5–6 dorsal and 1 ventral lyrifissure, lyrifissure ldb present. Fixed finger with 8–9 teeth decreasing in size proximally, two distal teeth distinctly larger than others, 2 proximal microtubercles. Movable finger without an isolated subapical tooth (di), with 5–7 teeth decreasing in size proximally, the distal tooth larger than others, 1 proximal microtubercle; spinneret prominent in both sexes; seta gl 0.54 from base of movable finger.

Chaetotaxy of tergites 4:4:4:4:6:6:6:6:1T2T1:4:1T2T1:0, tergites IX and XI each with 2 sublateral tactile setae. Chaetotaxy of sternites 9–11:(3)8(3):(2)9(2):9–11:7–10:6:6:6:2T1T2:0:2, lateral setae on sternite III macrosetal in size, sternite X with 2 submedial tactile setae; in addition, genital notch of male flanked by 7–9 setae on each side and 4+4 internal glandular setae.

Pedipalpal coxa with 5 setae (including 2 on manducatory process), distal marginal seta of disk 0.11 mm long; coxa I 3 + 3 marginal microsetae, distal marginal seta 0.07 mm long; II 4 + 8–9 bipinnate coxal spines, III 5 + 5 bipinnate coxal spines and IV 6; intercoxal tubercle bisetose.

Pedipalp with femoral chaetotaxy 3:6:3:5:1. Chela ( Fig. 309 ) with hand weakly depressed at level of ib / isb, with a short, low hump distad of ib / isb and very gentle slope between trichobothria ib / isb and eb; marked hollow before base of movable finger with thicker cuticle; width slightly shorter than depth, maximum width proximad of ib / isb; chaetotaxy 4:5–6:4, seta ph3 present, seta ih7 present on one chela; distal end of hand and bases of chelal fingers with sclerotized condylar complex. Fixed finger with 19–21 pointed teeth and with dental canals, first two distal teeth small, third tooth of normal row (mt) of fixed finger distinctly modified in shape and deviated in orientation with respect to the others, dental row reaching up to halfway between trichobothrium sb and sensilla pc; tip of fixed finger with an accessory tooth (td) on antiaxial face; tip of fixed chelal finger of male with a weak hollow on paraxial face, without subdistal protuberance (sp); one pair of long antiaxial sensory setae (as) at the base, both distad of lyrifissure fb, 0.058–0.060 mm long, distance between them 0.060 mm, fixed finger depth at the base 0.068 mm; 4 teeth at level of est / it occupying 0.1 mm, distance between successive apices 0.030 mm. Distal two-thirds of movable finger with 14–15 pointed teeth, most with dental canals, that more or less reach up to sensilla pc, two distal teeth tiny and without dental canals; basal third of movable chelal finger with only 6–8 rounded, partially fused, vestigial teeth, without canals, on weakly raised and short lamina; dental row reaching up to level of sensilla pc, 0–3 microtubercles at base; basal apodeme long and apically indented; coupled sensilla pc halfway between sb and b, distinctly closer to sb. Trichobothria as in Fig. 309 ; trichobothrium ist strongly distad of esb and also distinctly distad of lyrifissure fb; distance between ib / isb and esb 1.1 longer than that between ib / isb and the base of the finger; distance between st and sb 2.1 times longer than that between sb and b; lacking lyrifissures ma1, ma2 and hp, all other chelal lyrifissure patterns present with their standard complements, one male with duplicated lyrifissure hd in both chelae.

Measurements and ratios. Female holotype, followed, when different, by female paratypes in square brackets: Body 1.70 [1.90–2.00]. Carapace 0.55/0.52 (1.1) [0.57/0.55–0.59 (1.0)]. Pedipalp: femur 1.02/0.12 (8.4) [1.07– 1.08/0.12–0.13 (8.0–8.6)], patella 0.47/0.15 (3.2) [0.41–0.45/0.14–0.16 (2.8)], chela 1.40/0.19 (7.2) [1.40–1.45/ 0.19–0.21 (6.9–7.1)], hand 0.52 (2.7) [0.56–0.57 (2.7)], movable finger 0.88 [0.88–0.89]; ratio movable finger/ hand 1.7 [1.6], femur/movable finger 1.2, femur/carapace 1.9, chela/carapace 2.5, chela/femur 1.4 [1.3]. Male paratypes: Body 1.58–1.70. Carapace 0.49–0.52/0.45–0.47 (1.1). Pedipalp: femur 0.94–0.96/0.10 (9.1–9.4), patella 0.34–0.36/0.13 (2.7–2.8), chela 1.28–1.30/0.17–0.18 (7.1–7.7), hand 0.48–0.49 (2.6–2.9), movable finger 0.80– 0.81; ratio movable finger/hand 1.7, femur/movable finger 1.2, femur/carapace 1.9, chela/carapace 2.5–2.6, chela/ femur 1.4. Other material: Male. Body 1.86. Carapace 0.53/0.49 (1.1). Pedipalp: femur 0.99/0.12 (8.2), patella 0.40/0.15 (2.7), chela 1.34/0.18 (7.6), hand 0.48 (2.7), movable finger 0.84; ratio movable finger/hand 1.8, femur/ movable finger 1.2, femur/carapace 1.9, chela/carapace 2.5, chela/femur 1.4.

Remarks. Within the verai -group, O. ruizporteroae resembles O. ebo n. sp. and O. murcia n. sp. by the position of trichobothrium ist and in having long pedipalps. O. ruizporteroae is closest to O. ebo n. sp. by the reduced number (6–8) of rounded vestigial teeth in the basal half of the movable chelal finger, but it differs from the latter by the presence of cheliceral lyrifissure ldb. The above description incorporates in part that of Carabajal et al. (2001b). The species name is emended from ruiz-porteroi to ruizporteroae , since it is dedicated to a woman, Carmen Ruiz-Portero, and hyphens are not allowed in patronyms.

Figures

FIGURE 309. Occidenchthonius ruizporteroae (Carabajal Márquez, García Carrillo & Rodríguez Fernández, 2001) n. comb., female paratype, left chela, antiaxial view.