Stethorrhagus loxodonta, Xavier & Brescovit & Bonaldo, 2025

Stethorrhagus loxodonta sp. nov.

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Figs 18–20 View Fig View Fig View Fig , 51 View Fig

Diagnosis

Males of S. loxodonta sp. nov. resemble those of S. planada , S. hyula and S. sylvilagus sp. nov. by the combined presence of a bifid VL and by the dVL not protruding, covered by long, thick modified hairs ( Figs 19A–C View Fig , 20A–B View Fig , 21C–E View Fig , 22C–E View Fig , 25A–B View Fig , 26A–B View Fig ; Bonaldo & Brescovit 1994: figs 16b, 19b), differing by the SePP and embolus geminated at the base ( Figs 19A View Fig , 20A View Fig ) (SePP and embolus separated at base in S. planada , S. hyula and S. sylvilagus – Figs 21C View Fig , 22C View Fig , 25A View Fig , 26A View Fig ; Bonaldo & Brescovit 1994: figs 16a, 19a). Females resemble those of S. tremarctos sp. nov. and S. maculatus by the CO circular, disposed posteriorly in relation to SI, and the anterior margin of CO not delimited by a lip ( Figs 13D–E View Fig , 19D–E View Fig , 14C–D View Fig , 20C–D View Fig , 46B–C View Fig ). They differ from those of S. tremarctos by the depression anterior to the CO shallow, sub-triangular ( Figs 19D View Fig , 20C View Fig ) whereas it is deep, quadrangular in S. tremarctos ( Figs 13D View Fig , 14C View Fig ), and from those of S. maculatus by the VEP lateral margins curved, converging anteriorly, whereas it is straight, diverging anteriorly in S. maculatus ( Fig. 46C View Fig ).

Etymology

The specific name is a noun in apposition in reference to the Elephantidae Gray, 1821 genus Loxodonta Cuvier, 1825 , since the general conformation of the epigynum (as in Fig. 19D View Fig ) resembles an African elephant head in frontal view.

Material examined

Holotype

COLOMBIA • ♂; Boiacá, SFF de Iguoque , Camisal; [ 5°43′11″ N, 73°27′42″ W]; elev. 2900 m; 9 Jun. 2001; E. Flórez and V. Rodríguez leg.; ICN-Ar 1237 .

GoogleMaps

Paratypes

COLOMBIA – Boiacá • 1 ♀; same data as for holotype; ICN-Ar 13739 • 2 ♀♀; same data as for holotype; elev. 2810 m; 13 Jun. 2002; J. Vulpeda leg.; ICN-Ar 1902 . – Cundinamarca • 1 ♂; Páramo de Chingaza; [ 5°43′11″ N, 73°27′42″ W]; elev. 3100 m; 19 Oct. 2010; C. Valderrama leg.; MPEG 40003 View Materials GoogleMaps • 1 ♂; same data as for preceding; 1 Oct. 1986; in a house; IBSP 345758 View Materials . GoogleMaps

Other material

COLOMBIA – Cundinamarca • 1 ♂; Bogotá, Embalse de Chisaco , El Hato , Usme ; [ 6°32′31″ N, 73°18′27″ W]; Aug. 2008; J.E. Díaz leg; IBSP 221888 View Materials . GoogleMaps

Description

Male ( holotype – ICN Ar-1237)

COLORATION. Carapace, chelicerae, endites and labium brown ( Fig. 18A View Fig ). Sternum orange, darker at anterior border ( Fig. 18C View Fig ). Legs orange-brown. Abdomen dorsally brown, with four white central spots, ventrally gray ( Fig. 18A View Fig ). Sternum with deep sternal excavations ( Fig. 18C View Fig ).

MEASUREMENTS. Total length 7.32. Carapace 3.25 long, 2.60 wide. Clypeus 0.31. Leg measurements: I: femur 2.74/ patella 1.12/ tibia 2.60/ metatarsus 2.43/ tarsus 1.47/ total 10.36; II: 2.67/ 1.12/ 2.34/ 2.33/ 1.36/ 9.82; III: 2.33/ 1.02/ 1.97/ 2.18/ 1.10/ 8.60; IV: 3.13/ 1.11/ 2.78/ 3.55/ 1.29/ 11.86. Eye diameters: AME 0.22, ALE 0.19, PME 0.17, PLE 0.19. Chelicerae 1.55 long, with three promarginal teeth and four retromarginal denticles.

LEG SPINATION. I – femur d1-1-0, p0-1-1, r0; tibia d0, p0, r0, v2-2-2; metatarsus d0, p0, r0, v2-2-0. II – femur d1-1-0, p0-0-1, r0; tibia d0, p0, r0, v0-2-2; metatarsus d0, p0, r0, v2-2-0. III – femur d1-1-0, p0-0-1, r0-0-1; tibia d0, p1-1-0, r1-1-0, v2-2-2; metatarsus d0, p1-1-0, r1-1-0, v2-2-1. IV – femur d1-1-0, p0-0-1, r0-0-1; tibia d0, p1-1-0, r1-1-0, v2-2-2; metatarsus d0, p1-1-1, r1-1-1, v2-2-1.

PALP. RTA discreetly bilobed, noticeable by the tufts of modified setae at different apices (vVL and dVL), VTA longer than wide, with proximal surface about seven times smaller than distal surface, spermophor situated prolaterally, SePP and embolus geminated at base, embolus short, not curved, TP1 bilobated and projected (visible in retrolateral view), situated on distal fold of the spermophor, TP2 small and subtriangular ( Figs 19A–C View Fig , 20A–B View Fig ).

Female ( paratype, MPEG 40003)

COLORATION. As in male ( Fig. 18B View Fig ). Sternum with sternal excavations as in male ( Fig. 18D View Fig ).

MEASUREMENTS. Total length 9.35. Carapace 3.57 long, 2.80 wide. Clypeus 0.27. Leg measurements: I: femur 2.78/ patella 1.23/ tibia 2.60/ metatarsus 2.25/ tarsus 1.47/ total 10.33; II: 2.76/ 1.30/ 2.33/ 2.25/ 1.37/ 10.01; III: 2.63/ 1.21/ 2.05/ 2.37/ 1.25/ 9.51; IV: 3.32/ 1.30/ 3.0/ 3.56/ 1.43/ 12.61. Eye diameters: AME 0.21, ALE 0.19, PME 0.18, PLE 0.19. Chelicerae 1.83 long, with three promarginal teeth and four retromarginal denticles.

LEG SPINATION. I – femur d1-1-1, p0-0-1, r0; tibia d0, p0, r0, v2-2-2; metatarsus d0, p0, r0, v2-2-0. II – femur d1-1-0, p0-0-1, r0; tibia d0, p0, r0, v1r-2-2; metatarsus d0, p0, r0, v2-2-0. III – femur d1-1-0, p0-1-1, r0-1-1; tibia d0, p1-1-0, r1-1-0, v2-2-2; metatarsus d0, p1-1-1, r1-1-1, v2-2-1. IV – femur d1-1-0, p0-0-1, r0-0-1; tibia d0, p1-1-0, r1-1-0, v2-2-2; metatarsus d0, p1-1-0, r1-1-0, v2-2-1.

EPIGYNUM. CO circular and disposed posteriorly in relation to SI, anterior margin of CO not delimited and depressed, depression anterior to CO shallow, subtriangular, VEP lateral margins curved, converging anteriorly, placed posteriorly on epigynal plate, PVP wider, two times the distance between the anterior and posterior margins, covering SI, copulatory duct relatively short, from CO to posterior margin of VEP ( Figs 19D–E View Fig , 20C–D View Fig ).

Distribution

Colombia ( Fig. 51 View Fig ).