Cladistic reanalysis and historical biogeography of the genus Lycinus Thorell, 1894 (Araneae: Mygalomorphae: Nemesiidae) with description of two new species from western Argentina

Background: The genus Lycinus includes ten species, one from Argentina, eight from Chile, and one from Brazil. Two new species from western Argentina are described, and some data on natural history are presented. A cladistic reanalysis with the newly described species is carried out, and a reconstruction of ancestral areas and primary Brooks Parsimony Analysis are performed. The origins of the main groups of Lycinus are also discussed in that light. Results: Lycinus lagigliai sp. nov. and Lycinus nevadoensis sp. nov. are described. The distribution of these species comprised western Argentina at Mendoza province. The cladistic reanalysis showed Lycinus as monophyletic supported only by the synapomorphy of dorsal spines on male palpal tibia. The tree topology was as follows: (Lycinus epipiptus, Lycinus domeyko ((Lycinus longipes, L. nevadoensis sp. nov.) (Lycinus portoseguro, L. lagigliai sp. nov.)) (Lycinus caldera (Lycinus gajardoi, Lycinus choros)) (Lycinus tofo, Lycinus quilicura)). The biogeographical analysis showed a close relationship of the species from the Andean region and the South American Transition Zone. The reconstruction of ancestral areas recognized four vicariant nodes. Conclusions: A hitherto two unknown Lycinus species are recognized and formally described, along with a cladistic reanalysis and historical biogeographical hypotheses.Fil: Ferretti, Nelson Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Estudios Parasitológicos y de Vectores (i); Argentin

Descripción del macho de Stenoterommata uruguai (Araneae: Mygalomorphae: Nemesiidae) del noreste de Argentina, con notas sobre su historia natural

The male of Stenoterommata uruguai Goloboff, 1995 is described and illustrated for the first time. A photograph of a female spermathecae collected at the same locality is also presented to confirm the identification, as well as data on the natural history of this species.Se describe e ilustra por primera vez el macho de Stenoterommata uruguaiGoloboff, 1995. También se presenta una fotografía de la espermateca de una hembra recolectada en la misma localidad para confirmar la identificación y se registran datos sobre la historia natural de esta especie.Fil: Ferretti, Nelson Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Estudios Parasitológicos y de Vectores. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Estudios Parasitológicos y de Vectores; ArgentinaFil: Pompozzi, Gabriel Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Ciencias Biológicas y Biomédicas del Sur. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Instituto de Ciencias Biológicas y Biomédicas del Sur; Argentin

Una nueva especie de <i>Phrixotrichus</i> (Araneae, Theraphosidae) del sudoeste de Argentina y nuevos datos de distribución para <i>P. vulpinus</i>

A new species of Phrixotrichus Simon, 1889, P. pucara sp. nov., is described and illustrated based on a male from Pucará river, Neuquén province, Argentina. Male can be distinguished from all other species of the genus by the presence of a long strong spine on inner face of prolateral branch of tibial apophysis; also, it differs from P. scrofa (Molina, 1788) and P. vulpinus (Karsch, 1880) by a serrated prolateral keel of the male palpal bulb. Male resembles P. jara Perafán & Pérez-Miles, 2014 but can be distinguished by the uniform color on dorsal cephalothorax and by the palpal organ morphology being wider on the bulb base and embolus shorter and thicker, with the tip of embolus not so directed retrolaterally and prolateral keel bearing a serrated edge with three teeth. Additionally, P. vulpinus is reported for the first time for Argentina along with new distributional data.Centro de Estudios Parasitológicos y de Vectore

Cladistic reanalysis and historical biogeography of the genus <i>Lycinus</i> Thorell, 1894 (Araneae: Mygalomorphae: Nemesiidae) with description of two new species from western Argentina

Background: The genus Lycinus includes ten species, one from Argentina, eight from Chile, and one from Brazil. Two new species from western Argentina are described, and some data on natural history are presented. A cladistic reanalysis with the newly described species is carried out, and a reconstruction of ancestral areas and primary Brooks Parsimony Analysis are performed. The origins of the main groups of Lycinus are also diResults: Lycinus lagigliai sp. nov. and Lycinus nevadoensis sp. nov. are described. The distribution of these species comprised western Argentina at Mendoza province. The cladistic reanalysis showed Lycinus as monophyletic supported only by the synapomorphy of dorsal spines on male palpal tibia. The tree topology was as follows: (Lycinus epipiptus, Lycinus domeyko ((Lycinus longipes, L. nevadoensis sp. nov.) (Lycinus portoseguro, L. lagigliai sp. nov.)) (Lycinus caldera (Lycinus gajardoi, Lycinus choros)) (Lycinus tofo, Lycinus quilicura)). The biogeographical analysis showed a close relationship of the species from the Andean region and the South American Transition Zone. The reconstruction of ancestral areas recognized four vicariant nodes. Conclusions: A hitherto two unknown Lycinus species are recognized and formally described, along with a cladistic reanalysis and historical biogeographical hypotheses.Centro de Estudios Parasitológicos y de Vectore

Cladistic reanalysis and historical biogeography of the genus <i>Lycinus</i> Thorell, 1894 (Araneae: Mygalomorphae: Nemesiidae) with description of two new species from western Argentina

Background: The genus Lycinus includes ten species, one from Argentina, eight from Chile, and one from Brazil. Two new species from western Argentina are described, and some data on natural history are presented. A cladistic reanalysis with the newly described species is carried out, and a reconstruction of ancestral areas and primary Brooks Parsimony Analysis are performed. The origins of the main groups of Lycinus are also diResults: Lycinus lagigliai sp. nov. and Lycinus nevadoensis sp. nov. are described. The distribution of these species comprised western Argentina at Mendoza province. The cladistic reanalysis showed Lycinus as monophyletic supported only by the synapomorphy of dorsal spines on male palpal tibia. The tree topology was as follows: (Lycinus epipiptus, Lycinus domeyko ((Lycinus longipes, L. nevadoensis sp. nov.) (Lycinus portoseguro, L. lagigliai sp. nov.)) (Lycinus caldera (Lycinus gajardoi, Lycinus choros)) (Lycinus tofo, Lycinus quilicura)). The biogeographical analysis showed a close relationship of the species from the Andean region and the South American Transition Zone. The reconstruction of ancestral areas recognized four vicariant nodes. Conclusions: A hitherto two unknown Lycinus species are recognized and formally described, along with a cladistic reanalysis and historical biogeographical hypotheses.Centro de Estudios Parasitológicos y de Vectore

First record of the tarantula genus bumba (Araneae: Theraphosidae) from Bolivia, with the description of a new species

A new species of Bumba Pérez-Miles, Bonaldo & Miglio, 2014 is described and illustrated. This species comprises the first record of the genus for Bolivia. Bumba paunaka sp. nov. differs from the other species in the genus in the black longitudinal band on abdomen, in the long and slender embolus of the palpal bulb and in the thin and long subapical spine of the retrolateral branch of tibial apophysis. Females additionally differ in the spermathecal morphology. Finally, a distribution map for all known species of Bumba is presented.Fil: Ferretti, Nelson Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentin

Cladistic reanalysis and historical biogeography of the genus <i>Lycinus</i> Thorell, 1894 (Araneae: Mygalomorphae: Nemesiidae) with description of two new species from western Argentina

Background: The genus Lycinus includes ten species, one from Argentina, eight from Chile, and one from Brazil. Two new species from western Argentina are described, and some data on natural history are presented. A cladistic reanalysis with the newly described species is carried out, and a reconstruction of ancestral areas and primary Brooks Parsimony Analysis are performed. The origins of the main groups of Lycinus are also diResults: Lycinus lagigliai sp. nov. and Lycinus nevadoensis sp. nov. are described. The distribution of these species comprised western Argentina at Mendoza province. The cladistic reanalysis showed Lycinus as monophyletic supported only by the synapomorphy of dorsal spines on male palpal tibia. The tree topology was as follows: (Lycinus epipiptus, Lycinus domeyko ((Lycinus longipes, L. nevadoensis sp. nov.) (Lycinus portoseguro, L. lagigliai sp. nov.)) (Lycinus caldera (Lycinus gajardoi, Lycinus choros)) (Lycinus tofo, Lycinus quilicura)). The biogeographical analysis showed a close relationship of the species from the Andean region and the South American Transition Zone. The reconstruction of ancestral areas recognized four vicariant nodes. Conclusions: A hitherto two unknown Lycinus species are recognized and formally described, along with a cladistic reanalysis and historical biogeographical hypotheses.Centro de Estudios Parasitológicos y de Vectore

The first Hapalotremus Simon, 1903 (Araneae: Theraphosidae) from Argentina: description and natural history of Hapalotremus martinorum sp. nov.

A new species of Hapalotremus Simon, 1903 from northern Argentina is described and illustrated. Hapalotremus martinorum sp. nov. differs from all other congeners by the colour pattern of live specimens. Males differ in the male palpal bulb morphology, with thickened and less curved embolus having a blunt subapical keel and less-developed apical keel. Females differ in the shape of the spermathecae, with the lateral bases more pronounced than the superiors and the upper edge more rounded. Specimens were captured inhabiting short burrows or crevices under stones in high cloud forests. Hapalotremus cyclothorax (Mello-Leitão 1923) is a junior synonym of Homoeomma montanum (Mello-Leitão, 1923), Hapalotremus scintillans (Mello-Leitão 1929) is a junior synonym of Pachistopelma rufonigrum Pocock, 1901, Hapalotremus exilis (Mello-Leitão 1923) and Hapalotremus muticus (Mello-Leitão 1923) are considered species inquirenda.Fil: Cavallo, Patricio. Universidad Centro de Altos Estudios en Ciencias Exactas; ArgentinaFil: Ferretti, Nelson Edgardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Estudios Parasitológicos y de Vectores (i); Argentina. Universidad Nacional de La Plata; Argentin

Descripción del macho de Stenoterommata uruguai (Araneae: Mygalomorphae: Nemesiidae) del noreste de Argentina, con notas sobre su historia natural

The male of Stenoterommata uruguai Goloboff, 1995 is described and illustrated for the first time. A photograph of a female spermathecae collected at the same locality is also presented to confirm the identification, as well as data on the natural history of this species.Se describe e ilustra por primera vez el macho de Stenoterommata uruguai Goloboff, 1995. También se presenta una fotografía de la espermateca de una hembra recolectada en la misma localidad para confirmar la identificación y se registran datos sobre la historia natural de esta especieCentro de Estudios Parasitológicos y de Vectore

Descripción de dos nuevas especies de Plesiopelma (Araneae, Theraphosidae, Theraphosinae) de Argentina

Two new species of Plesiopelma Pocock, 1901 from northern Argentina are described and diagnosed based on males and habitat descriptions are presented. Males of Plesiopelma paganoi sp. nov. differ from most of species by the absence of spiniform setae on the retrolateral face of cymbium, aspect of the palpal bulb. Plesiopelma aspidosperma sp. nov. differs from most species of the genus by the presence of spiniform setae on the retrolateral face of cymbium and it can be distinguished from P. myodes Pocock, 1901, P. longisternale (Schiapelli & Gerschman, 1942) and P. rectimanum (Mello-Leitão, 1923) by the separated palpal bulb keels and basal nodule of metatarsus I very developed. It differs from P. minense (Mello-Leitão, 1943) by the shape of the palpal bulb and basal nodule on metatarsus I well developed. Specimens were captured in Salta province, Argentina, inhabiting high cloud forests of Yungas eco-region.Dos nuevas especies de Plesiopelma Pocock, 1901 del norte de Argentina son diferenciadas y se describen en base a ejemplares machos y se presentan descripciones de los ambientes. Machos de Plesiopelma paganoi sp. nov. difieren de la mayoría de las especies por la ausencia de setas espiniformes en la cara retrolateral del cymbium, por la forma del órgano palpar. Plesiopelma aspidosperma sp. nov. difiere del resto de las especies por la presencia de setas espiniformes en la cara retrolateral del cymbium y se distingue de P. myodes Pocock, 1901, P. longisternale (Schiapelli & Gerschman, 1942) y P. rectimanum (Mello-Leitão, 1923) por las quillas del bulbo separadas y el nódulo basal del metatarso I muy desarrollado. Se diferencia de P. minense (Mello-Leitão, 1943) por la forma del órgano palpar y el nódulo basal del metatarso I desarrollado. Los especímenes se capturaron en la provincia de Salta, Argentina, habitando nuboselvas de altura en la eco-región de Yungas.Centro de Estudios Parasitológicos y de Vectore