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2025
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| author | Xavier, Cláudia Brescovit, Antonio D. Bonaldo, Alexandre B. |
| author_facet | Xavier, Cláudia Brescovit, Antonio D. Bonaldo, Alexandre B. |
| contents | <p><b><i>Stethorrhagus callithrix</i> sp. nov.</b></p><p>urn:lsid:zoobank.org:act: E70E900E-0627-459D-A648-9BA96D0FD16C</p><p>Figs 31–33, 51</p><p><b>Diagnosis</b></p><p>Males of <i>S. callithrix</i> sp. nov. resemble those of <i>S. felis</i> sp. nov. and <i>S. bradypus</i> sp. nov. by the bifid VL, with thick modified hairs in both vVL and dVL, and dVL protruding (Fig. 33B), differing by the SePP with a pointed tip directed retrolaterally (Figs 32A–B, 33A–B) (SePP with a blunt tip directed apically in both <i>S. felis</i> and <i>S. bradypus</i> – Figs 35A–C, 38A, 36A–B, 39A–C). Females resemble those of <i>S. sylvilagus</i> sp. nov., <i>S. planada</i> and <i>S. sciurus</i> sp. nov. by the epigynum with VEP, CO disposed anteriorly in relation to SI, with U-shaped posterior margin (Figs 32C, 33C; Bonaldo & Brescovit 1994: fig. 18a). They differ from those of <i>S. planada</i> by the VEP gently procurved, placed posteriorly on the epigynal plate (Fig. 33C) (VEP sub-rectangular, placed medially on the epigynal plate in <i>S. planada</i> – Bonaldo & Brescovit 1994: fig. 18a) and from those of <i>S. sylvilagus</i> and <i>S. sciurus</i> by the CD relatively long (from CO to posterior margin of VEP, more than six times longer than the CO width, Fig. 33D) (CD relatively short, from CO to posterior margin of VEP, less than four times longer than the CO width in both <i>S. sylvilagus</i> and <i>S. sciurus</i> – Figs 26D, 43F).</p><p><b>Etymology</b></p><p>The specific name is a noun in apposition in reference to the primate genus <i>Callithrix</i> Erxleben, 1777, since the posterior sector of the epigynum (as in Fig. 32C) resembles a marmoset head in frontal view.</p><p><b>Material examined</b></p><p><b>Holotype</b></p><p>COLOMBIA • ♂; Cauca, Huila, Parque Nacional Natural Nevado de Huila; [3°03′26″ N, 75°55′23″ W]; elev. 3300 m; Sep. 1980; Páez leg.; ICN-Ar 13741.</p><p><b>Paratype</b></p><p>COLOMBIA • 1 ♀; same data as for holotype; ICN-Ar 13742.</p><p><b>Description</b></p><p><b>Male</b> (holotype – ICN-Ar 13741)</p><p>COLORATION. Carapace, chelicerae, endites and labium red-brown (Fig. 31A). Sternum yellow with orange borders, and deep sternal excavations (Fig. 31C). Legs yellow-brown. Abdomen brown with two rows of dorsal white paramedian spots (Fig. 31A).</p><p>MEASUREMENTS. Total length 6.94. Carapace 3.36 long, 2.71 wide. Clypeus 0.15. Leg measurements: I: femur 2.84/ patella 1.21/ tibia 2.81/ metatarsus 2.47/ tarsus 1.7/ total 11.03; II: 2.70/ 1.11/ 2.32/ 2.28/ 1.68/ 10.09; III: 2.56/ 1.10/ 1.90/ 2.33/ 1.17/ 9.06; IV: 3.35/ 1.18/ 2.81/ 3.47/ 1.61/ 12.42. Eye diameters: AME 0.20, ALE 0.19, PME 0.19, PLE 0.18. Chelicerae 1.81 long, with three promarginal teeth and five retromarginal denticles.</p><p>LEG SPINATION. I – femur d1-1-0, p0-0-1, r0; tibia d0, p0, r0, v1p-2-2-2; 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, p1-1-1, r1-1-1, v2-1p-2. III – femur d1-1-1, p1-1-1, r0-1-1; tibia d0, p1-1-0, r1-1-0, v2-2-2; metatarsus d0, p1-1-0, r1-1-0, v2-2-2. IV – femur d1-1-1, 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.</p><p>PALP. RTA with vVL and dVL with modified hairs, dVL longer than vVL, AS present and separated from VL, DL reduced, VTA longer than wide, spermophor situated prolaterally, TP1 bilobated and serrated, situated abovedistal fold of spermophor, TP2 absent, SePP with pointed tip directed retrolaterally, embolus long, curved prolaterally in ventral view and curved dorsally in retrolateral view, prongs long and curved apically (Figs 32A–B, 33A–B).</p><p><b>Female</b> (paratype – ICN-Ar 13742)</p><p>COLORATION. As in male (Fig. 31B). Sternum with sternal excavations as in male (Fig. 31D).</p><p>MEASUREMENTS. Total length 9.02. Carapace 3.43 long, 2.65 wide. Clypeus 0.19. femur 2.89/ patella 1.26/ tibia 2.57/ metatarsus 2.36/ tarsus 1.52/ total 10.60; II: 2.88/ 1.18/ 2.35/ 2.12/ 1.50/ 9.95; III: 2.68/ 1.08/ 1.93/ 2.19/ 1.26/ 9.14; IV: 3.41/ 1.28/ 3.01/ 3.63/ 1.43/ 12.76. Eye diameters: AME 0.23, ALE 0.2, PME 0.20, PLE 0.21. Chelicerae 1.48 long, with three promarginal teeth and five retromarginal denticles.</p><p>LEG SPINATION. I – femur d1-1-0, p0-0-1, r0; tibia d0, p0, r0, v1p-2-2-2; 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 – IV - femur d1-1-1, 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.</p><p>EPIGYNUM. CO disposed anteriorly in relation to spermathecae, copulatory aperture U-shaped along posterior margin, VEP gently procurved, placed posteriorly on epigynal plate, PVP wider than long, covering ⅔ of SI, PVP with slightly procurved notch along anterior margin, copulatory duct relatively long, with reinforcement rods anterior to CO (Figs 32C–D, 33C–D).</p><p><b>Distribution</b></p><p>Known only from the type locality (Fig. 51).</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_17159819 |
| institution | Zenodo |
| language | |
| publishDate | 2025 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Stethorrhagus callithrix Xavier, Brescovit & Bonaldo, 2025, sp. nov. Xavier, Cláudia Brescovit, Antonio D. Bonaldo, Alexandre B. Biodiversity Taxonomy Animalia Arthropoda Arachnida Araneae Corinnidae Stethorrhagus Stethorrhagus callithrix <p><b><i>Stethorrhagus callithrix</i> sp. nov.</b></p><p>urn:lsid:zoobank.org:act: E70E900E-0627-459D-A648-9BA96D0FD16C</p><p>Figs 31–33, 51</p><p><b>Diagnosis</b></p><p>Males of <i>S. callithrix</i> sp. nov. resemble those of <i>S. felis</i> sp. nov. and <i>S. bradypus</i> sp. nov. by the bifid VL, with thick modified hairs in both vVL and dVL, and dVL protruding (Fig. 33B), differing by the SePP with a pointed tip directed retrolaterally (Figs 32A–B, 33A–B) (SePP with a blunt tip directed apically in both <i>S. felis</i> and <i>S. bradypus</i> – Figs 35A–C, 38A, 36A–B, 39A–C). Females resemble those of <i>S. sylvilagus</i> sp. nov., <i>S. planada</i> and <i>S. sciurus</i> sp. nov. by the epigynum with VEP, CO disposed anteriorly in relation to SI, with U-shaped posterior margin (Figs 32C, 33C; Bonaldo & Brescovit 1994: fig. 18a). They differ from those of <i>S. planada</i> by the VEP gently procurved, placed posteriorly on the epigynal plate (Fig. 33C) (VEP sub-rectangular, placed medially on the epigynal plate in <i>S. planada</i> – Bonaldo & Brescovit 1994: fig. 18a) and from those of <i>S. sylvilagus</i> and <i>S. sciurus</i> by the CD relatively long (from CO to posterior margin of VEP, more than six times longer than the CO width, Fig. 33D) (CD relatively short, from CO to posterior margin of VEP, less than four times longer than the CO width in both <i>S. sylvilagus</i> and <i>S. sciurus</i> – Figs 26D, 43F).</p><p><b>Etymology</b></p><p>The specific name is a noun in apposition in reference to the primate genus <i>Callithrix</i> Erxleben, 1777, since the posterior sector of the epigynum (as in Fig. 32C) resembles a marmoset head in frontal view.</p><p><b>Material examined</b></p><p><b>Holotype</b></p><p>COLOMBIA • ♂; Cauca, Huila, Parque Nacional Natural Nevado de Huila; [3°03′26″ N, 75°55′23″ W]; elev. 3300 m; Sep. 1980; Páez leg.; ICN-Ar 13741.</p><p><b>Paratype</b></p><p>COLOMBIA • 1 ♀; same data as for holotype; ICN-Ar 13742.</p><p><b>Description</b></p><p><b>Male</b> (holotype – ICN-Ar 13741)</p><p>COLORATION. Carapace, chelicerae, endites and labium red-brown (Fig. 31A). Sternum yellow with orange borders, and deep sternal excavations (Fig. 31C). Legs yellow-brown. Abdomen brown with two rows of dorsal white paramedian spots (Fig. 31A).</p><p>MEASUREMENTS. Total length 6.94. Carapace 3.36 long, 2.71 wide. Clypeus 0.15. Leg measurements: I: femur 2.84/ patella 1.21/ tibia 2.81/ metatarsus 2.47/ tarsus 1.7/ total 11.03; II: 2.70/ 1.11/ 2.32/ 2.28/ 1.68/ 10.09; III: 2.56/ 1.10/ 1.90/ 2.33/ 1.17/ 9.06; IV: 3.35/ 1.18/ 2.81/ 3.47/ 1.61/ 12.42. Eye diameters: AME 0.20, ALE 0.19, PME 0.19, PLE 0.18. Chelicerae 1.81 long, with three promarginal teeth and five retromarginal denticles.</p><p>LEG SPINATION. I – femur d1-1-0, p0-0-1, r0; tibia d0, p0, r0, v1p-2-2-2; 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, p1-1-1, r1-1-1, v2-1p-2. III – femur d1-1-1, p1-1-1, r0-1-1; tibia d0, p1-1-0, r1-1-0, v2-2-2; metatarsus d0, p1-1-0, r1-1-0, v2-2-2. IV – femur d1-1-1, 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.</p><p>PALP. RTA with vVL and dVL with modified hairs, dVL longer than vVL, AS present and separated from VL, DL reduced, VTA longer than wide, spermophor situated prolaterally, TP1 bilobated and serrated, situated abovedistal fold of spermophor, TP2 absent, SePP with pointed tip directed retrolaterally, embolus long, curved prolaterally in ventral view and curved dorsally in retrolateral view, prongs long and curved apically (Figs 32A–B, 33A–B).</p><p><b>Female</b> (paratype – ICN-Ar 13742)</p><p>COLORATION. As in male (Fig. 31B). Sternum with sternal excavations as in male (Fig. 31D).</p><p>MEASUREMENTS. Total length 9.02. Carapace 3.43 long, 2.65 wide. Clypeus 0.19. femur 2.89/ patella 1.26/ tibia 2.57/ metatarsus 2.36/ tarsus 1.52/ total 10.60; II: 2.88/ 1.18/ 2.35/ 2.12/ 1.50/ 9.95; III: 2.68/ 1.08/ 1.93/ 2.19/ 1.26/ 9.14; IV: 3.41/ 1.28/ 3.01/ 3.63/ 1.43/ 12.76. Eye diameters: AME 0.23, ALE 0.2, PME 0.20, PLE 0.21. Chelicerae 1.48 long, with three promarginal teeth and five retromarginal denticles.</p><p>LEG SPINATION. I – femur d1-1-0, p0-0-1, r0; tibia d0, p0, r0, v1p-2-2-2; 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 – IV - femur d1-1-1, 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.</p><p>EPIGYNUM. CO disposed anteriorly in relation to spermathecae, copulatory aperture U-shaped along posterior margin, VEP gently procurved, placed posteriorly on epigynal plate, PVP wider than long, covering ⅔ of SI, PVP with slightly procurved notch along anterior margin, copulatory duct relatively long, with reinforcement rods anterior to CO (Figs 32C–D, 33C–D).</p><p><b>Distribution</b></p><p>Known only from the type locality (Fig. 51).</p> |
| title | Stethorrhagus callithrix Xavier, Brescovit & Bonaldo, 2025, sp. nov. |
| topic | Biodiversity Taxonomy Animalia Arthropoda Arachnida Araneae Corinnidae Stethorrhagus Stethorrhagus callithrix |
| url | https://doi.org/10.5281/zenodo.17159819 |