Stethorrhagus loxodonta sp. nov.

urn:lsid:zoobank.org:act: B84568EA-9D11-4EF3-9E05-FDCF81C5D085

Figs 18–20, 51

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, 20A–B, 21C–E, 22C–E, 25A–B, 26A–B; Bonaldo & Brescovit 1994: figs 16b, 19b), differing by the SePP and embolus geminated at the base (Figs 19A, 20A) (SePP and embolus separated at base in S. planada, S. hyula and S. sylvilagus – Figs 21C, 22C, 25A, 26A; 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, 19D–E, 14C–D, 20C–D, 46B–C). They differ from those of S. tremarctos by the depression anterior to the CO shallow, sub-triangular (Figs 19D, 20C) whereas it is deep, quadrangular in S. tremarctos (Figs 13D, 14C), 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).

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) 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.

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 • 1 ♂; same data as for preceding; 1 Oct. 1986; in a house; IBSP 345758.

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.

Description

Male (holotype – ICN Ar-1237)

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

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, 20A–B).

Female (paratype, MPEG 40003)

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

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, 20C–D).

Distribution

Colombia (Fig. 51).