5,253 research outputs found
Viracucha mammifer Arizala & Labarque & Polotow 2021, comb. nov.
No full textViracucha mammifer (Mello-Leitão, 1939) comb. nov. Acanthoctenus mammifer Mello-Leit „o, 1939: 528, figs 11–13 (male holotype from S„o Paulo, Brazil, deposited in IBSP 368, examined).— World Spider Catalog 2020. Note. The transference of Acanthoctenus mammifer to Viracucha is established by the following characters: embolus with laminated base and median apophysis massive (Mello-Leit„o, 1939: figs 11–13). Males of Acanthoctenus were here diagnosed by the short and cylindrical embolus and the elongated and thin median apophysis.Published as part of Arizala, Stephany, Labarque, Facundo Martín & Polotow, Daniele, 2021, Revision of the Neotropical spider genus Acanthoctenus (Araneae: Ctenidae Acanthocteninae), pp. 1-55 in Zootaxa 4920 (1) on page 52, DOI: 10.11646/zootaxa.4920.1.1, http://zenodo.org/record/447145
The placement of the spider genus Periegops and the phylogeny of Scytodoidea (Araneae: Araneomorphae)
No full textLabarque, Facundo M., Ramírez, Martín J. (2012): The placement of the spider genus Periegops and the phylogeny of Scytodoidea (Araneae: Araneomorphae). Zootaxa 3312 (1): 1-44, DOI: 10.11646/zootaxa.3312.1.1, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.3312.1.
FIGURE 26. Acanthoctenus plebejus Simon, 1906 in Revision of the Neotropical spider genus Acanthoctenus (Araneae: Ctenidae Acanthocteninae)
No full textFIGURE 26. Acanthoctenus plebejus Simon, 1906, female holotype (MNHN AR5169). A, epigynum, ventral; B, internal genitalia, dorsal.Published as part of Arizala, Stephany, Labarque, Facundo Martín & Polotow, Daniele, 2021, Revision of the Neotropical spider genus Acanthoctenus (Araneae: Ctenidae Acanthocteninae), pp. 1-55 in Zootaxa 4920 (1) on page 28, DOI: 10.11646/zootaxa.4920.1.1, http://zenodo.org/record/447145
FIGURE 14. Chelicerae, anterior view. A. Periegops suteri. B. Drymusa capensis. C. Scytodes globula. D. Stedocys leopoldi. E. Loxosceles rufescens. F in The placement of the spider genus Periegops and the phylogeny of Scytodoidea (Araneae: Araneomorphae)
No full textFIGURE 14. Chelicerae, anterior view. A. Periegops suteri. B. Drymusa capensis. C. Scytodes globula. D. Stedocys leopoldi. E. Loxosceles rufescens. F. Sicarius rupestris, mirrored. Scales: A–B, F 500 µm, C–E 200 µm.Published as part of Labarque, Facundo M. & Ramírez, Martín J., 2012, The placement of the spider genus Periegops and the phylogeny of Scytodoidea (Araneae: Araneomorphae), pp. 1-44 in Zootaxa 3312 (1) on page 26, DOI: 10.11646/zootaxa.3312.1.1, http://zenodo.org/record/525125
FIGURE 13. Female carapace, lateral view. A. Periegops suteri. B. Drymusa capensis. C in The placement of the spider genus Periegops and the phylogeny of Scytodoidea (Araneae: Araneomorphae)
No full textFIGURE 13. Female carapace, lateral view. A. Periegops suteri. B. Drymusa capensis. C. Scytodes globula, right side, mirrored. D. Stedocys leopoldi. E. Loxosceles rufescens. F. Sicarius rupestres. Scales: A–F 1 mm.Published as part of Labarque, Facundo M. & Ramírez, Martín J., 2012, The placement of the spider genus Periegops and the phylogeny of Scytodoidea (Araneae: Araneomorphae), pp. 1-44 in Zootaxa 3312 (1) on page 25, DOI: 10.11646/zootaxa.3312.1.1, http://zenodo.org/record/525125
FIGURE 1. Periegops suteri, preserved specimens. A–C. Female. D–F. Male. A, D. Dorsal view. B, E. Lateral. C, F in The placement of the spider genus Periegops and the phylogeny of Scytodoidea (Araneae: Araneomorphae)
No full textFIGURE 1. Periegops suteri, preserved specimens. A–C. Female. D–F. Male. A, D. Dorsal view. B, E. Lateral. C, F. Ventral. (B, image mirrored). Scales: A–F 2 cm.Published as part of Labarque, Facundo M. & Ramírez, Martín J., 2012, The placement of the spider genus Periegops and the phylogeny of Scytodoidea (Araneae: Araneomorphae), pp. 1-44 in Zootaxa 3312 (1) on page 13, DOI: 10.11646/zootaxa.3312.1.1, http://zenodo.org/record/525125
FIGURE 34. Acanthoctenus remotus Chickering, 1960, copulatory organs. A–B in Revision of the Neotropical spider genus Acanthoctenus (Araneae: Ctenidae Acanthocteninae)
No full textFIGURE 34. Acanthoctenus remotus Chickering, 1960, copulatory organs. A–B, male palp (holotype, MCZ 22882); A, ventral; B, retrolateral; C–D, female genitalia (paratype, MCZ 22882); C, epigynum, ventral. D, internal genitalia, dorsal.Published as part of Arizala, Stephany, Labarque, Facundo Martín & Polotow, Daniele, 2021, Revision of the Neotropical spider genus Acanthoctenus (Araneae: Ctenidae Acanthocteninae), pp. 1-55 in Zootaxa 4920 (1) on page 36, DOI: 10.11646/zootaxa.4920.1.1, http://zenodo.org/record/447145
Preservação de DNA e relação filogenética de aracnídeos é tema de pesquisa na UFSCar
No full textFacundo Martín Labarque, docente do Departamento de Ecologia e Biologia Evolutiva da Universidade Federal de São Carlos (DEBE - UFSCar), fala sobre sua pesquisa acerca das relações filogenéticas dos Amblypygi, uma Ordem de aracnídeos, combinando pela primeira vez EUCs, diferentes sequências de DNA e fósseis para todos os gêneros do grupo, possibilitando uma abordagem mais ampla dos dados.
Lattes: http://lattes.cnpq.br/7227934929457482
CLICK CIÊNCIA Projeto de divulgação e popularização da Ciência produzido pelo Laboratório Aberto de Interatividade para Disseminação do Conhecimento Científico e Tecnológico da Universidade Federal de São Carlos (LAbI - UFSCar).
Preservação de DNA e relação filogenética de aracnídeos é tema de pesquisa na UFSCar de https://youtu.be/hyFAsAp9F1U está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial-SemDerivações 4.0 Internacional.
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FIGURE 29. Female genitalia. A–B. Periegops suteri. C–D. Drymusa capensis. E–F. Scytodes globula. A, E. Dorsal view. B in The placement of the spider genus Periegops and the phylogeny of Scytodoidea (Araneae: Araneomorphae)
No full textFIGURE 29. Female genitalia. A–B. Periegops suteri. C–D. Drymusa capensis. E–F. Scytodes globula. A, E. Dorsal view. B. Closeup to receptacules. C. Right lateral view. D. Left posterior receptaculum, closeup. F. Right receptaculum, closeup. Scales: A, C, F 100 µm, B 20 µm, D 50 µm, E 200 µm. Abbreviations: GD, gland ductules; IS, inner spermatheca; S, spermatheca.Published as part of Labarque, Facundo M. & Ramírez, Martín J., 2012, The placement of the spider genus Periegops and the phylogeny of Scytodoidea (Araneae: Araneomorphae), pp. 1-44 in Zootaxa 3312 (1) on page 41, DOI: 10.11646/zootaxa.3312.1.1, http://zenodo.org/record/525125
Acanthoctenus lamarrei Arizala & Labarque & Polotow 2021, sp. nov.
No full textAcanthoctenus lamarrei sp. nov. Figs 10A, 42–43 Type material: male holotype from Playa Corona, near San Carlos [8°25’59.0”N, 80°00’21.7”W], Panama Province, Panama, 08.VIII.1983. H. & L. Levi coll., deposited in MCZ. Etymology. The specific name is a patronym in honor of the entomologist Greg P. A. Lamarre, in recognition of many contributions to the knowledge on Panamanian spiders and friendship to the first author. Diagnosis. Males of Acanthoctenus lamarrei sp. nov. (Figs 42 D–E, 43) resemble those of A. spinipes (Figs 15 D–E, 16A–B) by the median apophysis massive, the apex at least five times wider than the base, and RTA elongated, longer than wide. It can be distinguished by the embolus short, the apex ending at 12 o’clock and the base swollen at least four times the apex width, and RTA curved distally. A. spinipes presents an elongated embolus, the base slightly swollen starting at 9 o’clock and the apex ending at 2 o’clock, and RTA straight distally. Description. Male (holotype MCZ). Total length 9.37. Carapace 4.93 long and 4.33 wide. Clypeus 0.26 high. Eye diameters: AME 0.26, ALE 0.19, PME 0.36, PLE 0.49. Leg measurements: I: femur 6.75/ patella 2.53/ tibia 8.55/ metatarsus 8.25/ tarsus 2.29/ total 28.37; II: 6.65/ 2.54/ 6.38/ 6.59/ 1.97/ 24.13; III: 5.18/ 1.91/ 4.50/ 5.33/ 1.63/ 18.55; IV: 6.70/ 1.96/ 6.10/ 8.46/ 2.71/ 25.93. Leg formula 1423. Leg spination: tibia I and II v-2-2-2-2-2-2-2-2-2, p-1-0-1-1, r-1-0-1-1-1, III v-2-2-2, p-1-1-1, r-0-0-1 and IV v-2-2-2, p-1-1-1, r-1-0-1-1; metatarsus I, II v2-2-2-2-2, p-1-0-1, r-1, III v-2-2-2, p-1-0-1, r-1-1, IV v2-0-1-1-1, p1-1-1, r-1-0-1-1. Palp (Figs 42 D–E, 43): tibia shorter than cymbium, slightly curved; RTA elongated and sinuous; cymbium elongated and with retrobasal projection; embolus elongated but shorter than in most Acanthoctenus spp., cylindrical, and curved; conductor hyaline and following the tip of embolus; median apophysis laminar, elongated, narrow at the base and wider at the top, with a proapical hook. Female. Unknown. Distribution. Panama (Fig. 10A).Published as part of Arizala, Stephany, Labarque, Facundo Martín & Polotow, Daniele, 2021, Revision of the Neotropical spider genus Acanthoctenus (Araneae: Ctenidae Acanthocteninae), pp. 1-55 in Zootaxa 4920 (1) on pages 44-46, DOI: 10.11646/zootaxa.4920.1.1, http://zenodo.org/record/447145
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