Maurymontia grismadoi Porto, Iglesias & Pérez-González, 2025, sp. nov.
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| author | Porto, Willians Iglesias, Patricia P. Pérez-González, Abel |
| author_facet | Porto, Willians Iglesias, Patricia P. Pérez-González, Abel |
| contents | <p><b><i>Maurymontia grismadoi</i> sp. nov.</b></p><p>urn:lsid:zoobank.org:act: 789B41C6-7FE9-4510-AE78-266A26A3CC0D</p><p>(Figs 2A, 20–21)</p><p><b>Type material.</b> ♂ holotype (MACN-Ar 46023) from Argentina, Misiones Province, Salto Aguti, Salto Encantado. I-2005, Grismado, Lopardo, Piacentini, Quaglino, Rubio col.</p><p><b>Etymology.</b> The specific name is a patronym honoring our friend and colleague, the Argentine arachnologist Cristian Grismado, in recognition of his fervent dedication to arachnology, his devotion to the natural sciences, his outstanding contributions to arachnid taxonomy and systematics, and his participation in the collection of the studied specimen.</p><p><b>Diagnosis.</b> This species is readily distinguishable from other members (except from <i>M. mborore</i>) of the genus due to its short, rounded and minimally projected ocularium. The lower edge of the femur of the pedipalps exhibits 2–3 basal cruciform tubercles. Additionally, the <i>capsula interna</i> is thinner compared to other species within the genus, and the ventral plate is thicker. Tarsus I with only two tarsal segments, a species of small size only compared to <i>M. brasiliana</i> and <i>M. mborore</i>. <i>Capsula externa</i> of the penis with a U-shaped distal portion (dorsal view).</p><p><b>Measurements holotype</b> (MACN-Ar 46023): Total length 1.44; carapace length 0.58, maximum width 0.89; dorsal scutum length 1.15; mesotergal scute maximum width 1.12. Pedipalps: trochanter 0.12, femur 0.55, patella 0.36, tibia 0.51, tarsus 0.49. Leg I: trochanter 0.13, femur 0.55, patella 0.29, tibia 0.35, metatarsus 0.39, tarsus 0.47. Leg II: trochanter 0.19, femur 0.67, patella 0.32, tibia 0.56, metatarsus 0.54, tarsus 0.64. Leg III: trochanter 0.14, femur 0.45, patella 0.26, tibia 0.46, metatarsus 0.50, tarsus 0.40. Leg IV: trochanter 0.19, femur 0.76, patella 0.34, tibia 0.58, metatarsus 0.77, tarsus 0.47.</p><p><b>Description. Male</b> (MACN-Ar 46023). <i>Dorsum</i> (Fig. 20 A–C). Eta (η) hourglass-shaped dorsal <i>scutum</i>. Ocularium conical, short, with the dorsal surface adorned with granules. Eyes are located in the middle of the ocularium. The dorsal scutum reveals well-defined areas covered by small tubercles. Free tergites are covered by small tubercles, some bearing setae.</p><p><i>Venter</i> (Fig. 20 D). Distal areas of the coxae covered by granules, coxa II has a distal tubercle longer than the others present in the other coxae. Spiracles visible. Sternum arrow-shaped, located in a microgranulate groove.</p><p><i>Chelicerae</i>. Segment I–II with small scattered tubercles.</p><p><i>Pedipalp</i> (Fig. 21 A). Trochanter with two dorsal tubercles and one ventral tubercle with subdistal setae. Femur with a ventro-ectal tubercle and a row of small tubercles with setae in dorso-ectal view. The ventral femur exhibits a row of ventral tubercles with subdistal setae. Patella smooth. Tibia is covered ventrally by small rounded tubercles and has three ventral tubercles with subdistal setae on each side. Tarsus has three ventral tubercles with subdistal setae each side and small scattered ventral tubercles with subdistal setae.</p><p><i>Legs</i>. Leg I–IV covered by small tubercles (the femur I has a ventral row of larger tubercles than other legs), <i>astragalus</i> larger than the <i>calcaneus</i> on all legs, tarsal count: 2-2-3-3.</p><p><i>Penis</i> (Fig. 21 B–D). <i>Pars distalis</i> with a ventral plate, without a cleft, forming a lamella, longer than wide (almost rectangular), with three ventral and two dorsal macrosetae each side; <i>capsula externa</i> higher than the ventral plate, surrounding the <i>capsula interna</i> that is tubular in shape. Unlike the other species of the genus, in this case, the <i>capsula externa</i> is longer than the <i>capsula interna</i>, covering the <i>capsula interna</i> completely. Distal portion of the stylus with a dorsal-apical groove.</p><p><b>Female</b></p><p>Unknown</p><p><b>Distribution.</b> Known only from the type locality (Fig. 2 A).</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_17935849 |
| institution | Zenodo |
| language | |
| publishDate | 2025 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Maurymontia grismadoi Porto, Iglesias & Pérez-González, 2025, sp. nov. Porto, Willians Iglesias, Patricia P. Pérez-González, Abel Biodiversity Taxonomy Animalia Arthropoda Arachnida Opiliones Triaenonychidae Maurymontia Maurymontia grismadoi <p><b><i>Maurymontia grismadoi</i> sp. nov.</b></p><p>urn:lsid:zoobank.org:act: 789B41C6-7FE9-4510-AE78-266A26A3CC0D</p><p>(Figs 2A, 20–21)</p><p><b>Type material.</b> ♂ holotype (MACN-Ar 46023) from Argentina, Misiones Province, Salto Aguti, Salto Encantado. I-2005, Grismado, Lopardo, Piacentini, Quaglino, Rubio col.</p><p><b>Etymology.</b> The specific name is a patronym honoring our friend and colleague, the Argentine arachnologist Cristian Grismado, in recognition of his fervent dedication to arachnology, his devotion to the natural sciences, his outstanding contributions to arachnid taxonomy and systematics, and his participation in the collection of the studied specimen.</p><p><b>Diagnosis.</b> This species is readily distinguishable from other members (except from <i>M. mborore</i>) of the genus due to its short, rounded and minimally projected ocularium. The lower edge of the femur of the pedipalps exhibits 2–3 basal cruciform tubercles. Additionally, the <i>capsula interna</i> is thinner compared to other species within the genus, and the ventral plate is thicker. Tarsus I with only two tarsal segments, a species of small size only compared to <i>M. brasiliana</i> and <i>M. mborore</i>. <i>Capsula externa</i> of the penis with a U-shaped distal portion (dorsal view).</p><p><b>Measurements holotype</b> (MACN-Ar 46023): Total length 1.44; carapace length 0.58, maximum width 0.89; dorsal scutum length 1.15; mesotergal scute maximum width 1.12. Pedipalps: trochanter 0.12, femur 0.55, patella 0.36, tibia 0.51, tarsus 0.49. Leg I: trochanter 0.13, femur 0.55, patella 0.29, tibia 0.35, metatarsus 0.39, tarsus 0.47. Leg II: trochanter 0.19, femur 0.67, patella 0.32, tibia 0.56, metatarsus 0.54, tarsus 0.64. Leg III: trochanter 0.14, femur 0.45, patella 0.26, tibia 0.46, metatarsus 0.50, tarsus 0.40. Leg IV: trochanter 0.19, femur 0.76, patella 0.34, tibia 0.58, metatarsus 0.77, tarsus 0.47.</p><p><b>Description. Male</b> (MACN-Ar 46023). <i>Dorsum</i> (Fig. 20 A–C). Eta (η) hourglass-shaped dorsal <i>scutum</i>. Ocularium conical, short, with the dorsal surface adorned with granules. Eyes are located in the middle of the ocularium. The dorsal scutum reveals well-defined areas covered by small tubercles. Free tergites are covered by small tubercles, some bearing setae.</p><p><i>Venter</i> (Fig. 20 D). Distal areas of the coxae covered by granules, coxa II has a distal tubercle longer than the others present in the other coxae. Spiracles visible. Sternum arrow-shaped, located in a microgranulate groove.</p><p><i>Chelicerae</i>. Segment I–II with small scattered tubercles.</p><p><i>Pedipalp</i> (Fig. 21 A). Trochanter with two dorsal tubercles and one ventral tubercle with subdistal setae. Femur with a ventro-ectal tubercle and a row of small tubercles with setae in dorso-ectal view. The ventral femur exhibits a row of ventral tubercles with subdistal setae. Patella smooth. Tibia is covered ventrally by small rounded tubercles and has three ventral tubercles with subdistal setae on each side. Tarsus has three ventral tubercles with subdistal setae each side and small scattered ventral tubercles with subdistal setae.</p><p><i>Legs</i>. Leg I–IV covered by small tubercles (the femur I has a ventral row of larger tubercles than other legs), <i>astragalus</i> larger than the <i>calcaneus</i> on all legs, tarsal count: 2-2-3-3.</p><p><i>Penis</i> (Fig. 21 B–D). <i>Pars distalis</i> with a ventral plate, without a cleft, forming a lamella, longer than wide (almost rectangular), with three ventral and two dorsal macrosetae each side; <i>capsula externa</i> higher than the ventral plate, surrounding the <i>capsula interna</i> that is tubular in shape. Unlike the other species of the genus, in this case, the <i>capsula externa</i> is longer than the <i>capsula interna</i>, covering the <i>capsula interna</i> completely. Distal portion of the stylus with a dorsal-apical groove.</p><p><b>Female</b></p><p>Unknown</p><p><b>Distribution.</b> Known only from the type locality (Fig. 2 A).</p> |
| title | Maurymontia grismadoi Porto, Iglesias & Pérez-González, 2025, sp. nov. |
| topic | Biodiversity Taxonomy Animalia Arthropoda Arachnida Opiliones Triaenonychidae Maurymontia Maurymontia grismadoi |
| url | https://doi.org/10.5281/zenodo.17935849 |