RESUMO

The monotypic Peruvian genus Anqasha with type species Anqasha picta (Pocock 1903) is revised. A female of A. picta from the type locality of Caraz is herein described for the first time. The recently described females of A. picta coming from Recuay are transferred to the new taxon, which is herein described, diagnosed, and illustrated. Males of A. minaperinensis sp. nov. differ from that of A. picta in the shape of retrolateral branch of subapical apophyses on male tibia I, which is apically flattened and having three short spines. Females of A. minaperinensis sp. nov. differ from A. picta in the shape of seminal receptacles.

Se revisa el género monotípico peruano Anqasha, con la espécie tipo Anqasha picta (Pocock 1903). Se describe por primera vez una hembra de A. picta de la localidad de tipo en Caraz. Las hembras recientemente descritas de A. picta procedentes de Recuay son transferidas al nuevo taxon, el cual se describe, diagnostica e illustra aquí. Los machos de A. minaperinensis sp. nov. se differencían de A. picta en la forma de la rama retrolateral de la apófísis subapical en la tibia I del macho, la cual está aplanada apicalmente y llevando tres espinas cortas. Las hembras de A. minaperinensis sp. nov. se differencían de A. picta en la forma de los receptaculos seminales.

RESUMO

The genera Psalmopoeus Pocock, 1895, Tapinauchenius Ausserer, 1871 and Pseudoclamoris Hüsser, 2018 are revised and cladistics analyses carried out including most species of these genera. In order to test the monophyly of Aviculariinae and Psalmopoeinae, species of all genera in these two subfamilies were included, as well as of Harpactirinae, Selenocosmiinae, Theraphosinae, Stromatopelmatinae, Ischnocolinae, Schismatothelinae, Poecilotherinae, and a barychelid was used to root the cladogram. The matrix with 50 terminal taxa, 1 continuous and 85 discrete characters was analysed with TNT 1.5. The results show a monophyletic Psalmopoeinae as sister group of Aviculariinae. Psalmopoeus comprises 9 species: Psalmopoeus cambridgei Pocock, 1895 (type species), Psalmopoeus ecclesiasticus Pocock, 1903, Psalmopoeus emeraldus Pocock, 1903, Psalmopoeus irminia Saager, 1994, Psalmopoeus langenbucheri Schmidt, Bullmer & Thierer-Lutz, 2006, Psalmopoeus plantaris Pocock, 1903, Psalmopoeus pulcher Petrunkevitch, 1925, Psalmopoeus reduncus (Karsch, 1880), and Psalmopoeus victori Mendoza, 2014. Psalmopoeus intermedius Chamberlin, 1940 is considered a junior synonym of P. reduncus. Psalmopoeus copanensis Gabriel & Sherwood, 2020, P. sandersoni Gabriel & Sherwood, 2020 and P. petenensis Gabriel & Sherwood, 2020 are considered junior synonyms of P. victori. Psalmopoeus maya Witt, 1996 is considered nomen nudum. Tapinauchenius comprises 8 species: Tapinauchenius plumipes (C. L. Koch, 1842) (type species), Tapinauchenius sanctivincenti (Walckenaer, 1837), Tapinauchenius latipes L. Koch, 1875, Tapinauchenius brunneus Schmidt, 1995, Tapinauchenius cupreus Schmidt & Bauer, 1996, Tapinauchenius polybotes Hüsser, 2018, Tapinauchenius rasti Hüsser, 2018, and T. gretae n. sp. The female of T. brunneus is described for first time. Tapinauchenius violaceus (Mello-Leitão, 1930), T. purpureus Schmidt, 1995, T. concolor (Caporiaccco, 1947), and T. gigas Caporiacco, 1954 are considered junior synonyms of T. plumipes. With the synonymy of T. gigas (type species of Pseudoclamoris Hüsser, 2018), it was necessary to describe a new genus for the two species formerly included in it. Thus, the new genus Amazonius n. gen. is erected to include A. elenae (Schmidt, 1994) n. comb., A. burgessi (Hüsser, 2018) n. comb. as well as two new species A. giovaninii n. gen. n. sp. and A. germani n. gen. n. sp. A discussion on the relationship of Psalmopoeinae and Aviculariinae and maps with the distributions of all species are provided.

RESUMO

A new species of Euathlus Ausserer, 1875 (Araneae: Theraphosidae: Theraphosinae), Euathlus vanessae sp. nov. is described and diagnosed. The genus is known from Chile and Argentina, and E. vanessae sp. nov. represents the first record for the genus in Peru, being the new northernmost limit of its known distribution. Distribution and natural history data are provided. Additionally, the conservation status of the new species is discussed and it is proposed as Endangered (EN) according to IUCN criteria.(AU)

Se describe y diagnostica una nueva especie de Euathlus Ausserer, 1875 (Araneae: Theraphosidae: Theraphosinae), Euathlus vanessae sp. nov. El género es conocido en Chile y Argentina, y E. vanessae sp. nov. representa el primer registro oficial del género para el Perú, siendo el nuevo límite más septentrional de distribución conocida. Se proporcionan datos de distribución e historia natural, adicionalmente se discute el estado de conservación de la nueva especie y se propone como En Peligro (EN) según los criterios de la UICN.(AU)

Assuntos

RESUMO

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.(AU)

Assuntos

RESUMO

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.

Assuntos

RESUMO

A new species of Euathlus Ausserer, 1875 (Araneae: Theraphosidae: Theraphosinae), Euathlus vanessae sp. nov. is described and diagnosed. The genus is known from Chile and Argentina, and E. vanessae sp. nov. represents the first record for the genus in Peru, being the new northernmost limit of its known distribution. Distribution and natural history data are provided. Additionally, the conservation status of the new species is discussed and it is proposed as Endangered (EN) according to IUCN criteria.

Se describe y diagnostica una nueva especie de Euathlus Ausserer, 1875 (Araneae: Theraphosidae: Theraphosinae), Euathlus vanessae sp. nov. El género es conocido en Chile y Argentina, y E. vanessae sp. nov. representa el primer registro oficial del género para el Perú, siendo el nuevo límite más septentrional de distribución conocida. Se proporcionan datos de distribución e historia natural, adicionalmente se discute el estado de conservación de la nueva especie y se propone como En Peligro (EN) según los criterios de la UICN.

Assuntos

RESUMO

ABSTRACT 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.

RESUMO

RESUMEN Se describe y diagnostica una nueva especie de Euathlus Ausserer, 1875 (Araneae: Theraphosidae: Theraphosinae), Euathlus vanessae sp. nov. El género es conocido en Chile y Argentina, y E. vanessae sp. nov. representa el primer registro oficial del género para el Perú, siendo el nuevo límite más septentrional de distribución conocida. Se proporcionan datos de distribución e historia natural, adicionalmente se discute el estado de conservación de la nueva especie y se propone como En Peligro (EN) según los criterios de la UICN.

ABSTRACT A new species of Euathlus Ausserer, 1875 (Araneae: Theraphosidae: Theraphosinae), Euathlus vanessae sp. nov. is described and diagnosed. The genus is known from Chile and Argentina, and E. vanessae sp. nov. represents the first record for the genus in Peru, being the new northernmost limit of its known distribution. Distribution and natural history data are provided. Additionally, the conservation status of the new species is discussed and it is proposed as Endangered (EN) according to IUCN criteria.

RESUMO

The ischnocoline genus CatumiriGuadanucci, 2004 comprises four species distributed in Argentina, Brazil, Chile, and Uruguay. The type species Catumiri petropoliumGuadanucci, 2004 is known only from the male. We here provide a new diagnosis for Catumiri, describe the female of C. petropolium, and report new records of this species from Parque Nacional da Serra dos Órgãos, Reserva Biológica do Tinguá and Parque Nacional da Serra da Bocaina, Rio de Janeiro, Brazil. We also expand the distribution of Catumiri parvum (Keyserling, 1878) to Parque Nacional de Aparados da Serra, Praia Grande, Santa Catarina, Brazil, Alegrete, Rosário do Sul, Santana do Livramento, Pinheiro Machado, Bagé, and Jaguarão, all from Rio Grande do Sul, Brazil and Cerro de Los Cuervos, Lavalleja, Uruguay.

RESUMO

Neotropical species of the genus Idiops Perty, 1833 are reviewed, and four new species are described from Brazil: I. duocordibus Fonseca-Ferreira, Guadanucci & Brescovit sp. nov., I. guri Fonseca-Ferreira, Guadanucci & Brescovit sp. nov., I. mocambo Fonseca-Ferreira, Guadanucci & Brescovit sp. nov. and I. sertania Fonseca-Ferreira, Guadanucci & Brescovit sp. nov. The majority of species are redescribed based on the examination of the types and extensive material. Males of I. petiti (Guérin, 1838), I. rastratus (Pickard-Cambrige, 1889), I. rohdei Karsch, 1886 and I. nilopolensis Mello-Leitão, 1923, and females of I. fuscus Perty, 1833 and I. pirassununguensis Fukami & Lucas, 2005, hitherto unknown, are described for the first time. Idiops nilopolensis, considered a nomen dubium, is revalidated. Idiops fulvipes Simon, 1889 is synonymized with I. argus Simon, 1889, and I. santaremius (Pickard-Cambrige, 1896) is synonymized with I. petiti. Neotypes are designated for Idiops fuscus, I. nilopolensis and I. siolii (Bücherl, 1953). Idiops bonapartei Hasselt, 1888 is considered species inquirendae, since the type is an immature female. Finally, an updated distribution map of Neotropical species is included. The genus now has 24 species in the Neotropical region.

RESUMO

Four new species of the mygalomorph spider genus StenoterommataHolmberg, 1881 are described from Southeastern and Central Brazil. They are among the first described species that occur in the Brazilian Cerrado: S. neodiplornata Ghirotto & Indicatti, n. sp. from São Paulo state, in areas of Atlantic Forest, of savanna and of seasonal forest (Cerradão); S. chavarii Ghirotto & Indicatti, n. sp. from Botucatu, São Paulo state, in ecotonal areas of Atlantic Forest and Cerrado, as well as open anthropized areas similar to savannas; S. bodoquena Ghirotto & Indicatti, n. sp. from Bonito, Mato Grosso do Sul state, in areas of Atlantic Forest with Cerrado influences and seasonal forest; S. egric Ghirotto & Indicatti, n. sp. from Ibitipoca mountain range, Lima Duarte, Minas Gerais state, in Atlantic Forest and savanna areas. All new species are differentiated by the unique morphology of genitalia. Information on the natural history of S. neodiplornata Ghirotto & Indicatti, n. sp., S. bodoquena Ghirotto & Indicatti, n. sp. and S. egric Ghirotto & Indicatti, n. sp. is provided. Stenoterommata neodiplornata Ghirotto & Indicatti, n. sp. is the third species of the genus that can inhabit trunks and upper branches of the highest part of the trees. In addition, it is presented the first record of the genus for the Central Brazil, S. bodoquena Ghirotto & Indicatti, n. sp. from Mato Grosso do Sul.

RESUMO

Two species of the genus Diplura C. L. Koch, 1850, described from the Brazilian Amazon region: Diplura nigra (F. O. Pickard-Cambridge, 1896) and Diplura sanguinea (F. O. Pickard-Cambridge, 1896), are redescribed based on the examination of types and abundant new Amazonian material. The males of D. nigra and D. sanguinea are described for the first time, ecological data is presented and, for the first time, the female spermathecae are illustrated. New distributional data for these species is presented from the Amazonian region. We also give a short summary of species placements within Diplura based on the dorsal colour of the opisthosoma.

RESUMO

The genera Psalistops Simon, 1889, Trichopelma, Simon, 1888 and Cyrtogrammomma Pocock, 1895 are revised and included in cladistics analyses including almost all species of these genera. In order to test previous morphological hypotheses on the relationships of Barychelidae, Paratropididae and Theraphosidae and because of the controversial taxonomic position of Psalistops and Trichopelma, a set of terminal taxa representing all subfamilies of Paratropididae (Paratropidinae, Glabropelmatinae), Barychelidae (Barychelinae, Sasoninae, Trichopelmatinae) and most theraphosid subfamilies were included, as well as a diplurid, a nemesiid, and a pycnothelid, the later used to root the cladogram. The matrix with 66 terminal taxa, 2 continuous and 93 discrete characters was analysed with TNT 1.5. We found that Trichopelmatinae is not a monophyletic group, and Psalistops is transferred to Theraphosidae, as well as the barychelid genus Cyrtogrammomma and the paratropidid genus Melloina Brignoli. Cyrtogrammomma was retrieved as the sister group of Trichopelma, and Melloina as the sister group of Holothele Karsch. Psalistops was retrieved as the sister group of Reichlingia Rudloff, and the clade with these two genera is the most basal in Theraphosidae. Barychelidae was found to be monophyletic and the sister group of Theraphosidae. Paratropididae was retrieved as the sister group of Barychelidae + Theraphosidae. The relationship and possible synapomorphies of the three families are herein discussed.                This is the first time since Raven (1985) that representatives of all barychelid (Barychelinae, Sasoninae, Trichopelmatinae), paratropidid (Paratropidinae, Glabropelmatinae) and most theraphosid subfamilies have been included in a morphological cladistic analysis.                Psalistops comprises two species, P. melanopygius Simon, 1889 (type species) and P. colombianus sp. nov. Psalistops montigena Simon, 1889, P. tigrinus Simon, 1889 and P. zonatus Simon, 1889 are synonymized with P. melanopygius Simon, 1889. Psalistops fulvus Bryant, 1948, P. hispaniolensis Wunderlich, 1988 (fossil), P. maculosus Bryant, 1948, P. venadensis Valerio, 1986 and P. steini (Simon, 1889) are transferred to Trichopelma. Psalistops gasci Maréchal, 1996 is transferred to Hapalopus Ausserer (Theraphosidae); P. opifex (Simon, 1889) and P. solitarius (Simon, 1889) are transferred to Schismatothele Karsch, 1879 (Theraphosidae). Schismatothele solitarius (Simon, 1889) n. comb. is synonymized with Schismatothele lineata Karsch, 1879, n. syn. Psalistops nigrifemuratus Mello-Leitão, 1939 is probably a nemesiid or pycnothelid, and herein considered as nomen dubium in Pycnothelidae. Trichopelma comprises 22 species: Trichopelma nitidum Simon, 1888 (type species), T. coenobita (Simon, 1889), T. steini (Simon, 1889), T. affine (Simon, 1892), T. cubanum (Simon, 1903), T. maculatum (Banks, 1906), T. zebra (Petrunkevitch, 1925), T. banksia Özdikmen Demir, 2012, T. insulanum (Petrunkevitch, 1926), T. fulvus (Bryant, 1948) n. comb., T. laselva Valerio, 1986, T. venadensis (Valerio, 1986) n. comb., T. huffi sp. nov., T. gabrieli sp. nov., T. tostoi sp. nov., T. goloboffi sp. nov., T. juventud sp. nov., T. laurae sp. nov., T.bimini sp. nov., T. loui sp. nov., T. platnicki sp. nov., and T. hispaniolensis Wunderlich, 1988 n. comb. (fossil). Trichopelma maculosus (Bryant, 1948) n. comb. is synonymized with P. fulvus Bryant, 1948; T. corozalis (Petrunkevitch, 1929) is synonymized with T. insulanum (Petrunkevitch, 1926). Trichopelma astutum Simon, 1889 is transferred to Euthycaelus Simon, 1889, and T. maddeni Esposito Agnarsson, 2014 to Holothele Karsch, 1879 (Theraphosidae). Trichopelma flavicomum Simon, 1891 is transferred to Neodiplothele (Barychelidae, Sasoninae). The species T. illetabile Simon, 1888, T. spinosum (Franganillo, 1926), T. scopulatum (Fischel, 1927) and T. eucubanum Özdikmen Demir, 2012 are considered as nomina dubia. Cyrtogrammomma comprises two species: C. monticola Pocock, 1895 (type species) and C. raveni sp. nov.

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Resumen Se describe, diagnostica e ilustra Neischnocolus iquitos sp. nov. de la región de Loreto, Perú. Los machos de N. iquitos sp. nov. se diferencian del resto de sus congéneres conocidos a la fecha por tener dos apófisis retrolaterales en la tibia palpal, en combinación con la presencia de una quilla retrolateral en el émbolo, y la ausencia de granulación o micropicos en el émbolo o tegulum. Las hembras de N. iquitos sp. nov. se diferencian de las otras hembras de Neischnocolus en la morfología de la genitalia, consistiendo de una parte inferior esclerotizada con dos receptáculos seminales separados, y una parte superior transparente y con muescas.

Abstract Neischnocolus iquitos sp. nov. from Loreto region, Peru, is described, diagnosed and figured. Males of N. iquitos sp. nov. differ from all known congeners in the presence of two retrolateral processes on palpal tibia, in combination with the presence of a retrolateral keel on embolus and the absence of granulation or microspikes on embolus or tegulum. Females of N. iquitos sp. nov. differ from all known Neischnocolus females in the morphology of the genitalia consisting of a lower sclerotized part with two short, separate seminal receptacles, and an upper part, which is transparent and notched.

RESUMO

Resumen Se describe, diagnostica e ilustra una nueva especie de Bistriopelma Kaderka 2015, Bistriopelma fabianae sp. nov., para la región de Arequipa en el sur de Perú. Los especímenes se encontraron en un bosque de Queñua (Polylepis rugulosa Bitter) ubicado en las faldas del volcán Pichu Pichu en la zona de amortiguamiento de la Reserva Nacional de Salinas y Aguada Blanca. Se presentan datos biológicos y ecológicos de B. fabianae sp. nov. y también notas adicionales sobre B. kiwicha y B. peyoi, dos nuevas especies recientemente descritas de las regiones de Apurímac y Cusco.

Abstract A new species of Bistriopelma Kaderka 2015, Bistriopelma fabianae sp. nov., from the Arequipa region in southern Peru is described, diagnosed, and illustrated. Specimens were found in a Queñua forest (Polylepis rugulosa Bitter) spread out on the slopes of Pichu Pichu volcano in the buffer zone of Salinas and Aguada Blanca National Reserve. Biological and ecological data of B. fabianae sp. nov. are provided as well as notes on B. kiwicha and B. peyoi, two new species recently described from Apurimac and Cusco regions.

RESUMO

Tarantulas represent some of the heaviest and most famous spiders. However, there is little information about the embryonic development of these spiders or their relatives (infraorder Mygalomorphae) and time-lapse recording of the embryonic development is entirely missing. I here describe the complete development of the Brazilian white knee tarantula, Acanthoscurria geniculata, in fixed and live embryos. The establishment of the blastoderm, the formation, migration and signalling of the cumulus and the shape changes that occur in the segment addition zone are analysed in detail. In addition, I show that there might be differences in the contraction process of early embryos of different theraphosid spider species. A new embryonic reference transcriptome was generated for this study and was used to clone and analyse the expression of several important developmental genes. Finally, I show that embryos of A. geniculata are amenable to tissue transplantation and bead insertion experiments. Using these functional approaches, I induced axis duplication in embryos via cumulus transplantation and ectopic activation of BMP signalling. Overall, the mygalomorph spider A. geniculata is a useful laboratory system to analyse evolutionary developmental questions, and the availability of such a system will help understanding conserved and divergent aspects of spider/chelicerate development.

Assuntos

RESUMO

The genera Psalistops Simon, 1889, Trichopelma, Simon, 1888 and Cyrtogrammomma Pocock, 1895 are revised and included in cladistics analyses including almost all species of these genera. In order to test previous morphological hypotheses on the relationships of Barychelidae, Paratropididae and Theraphosidae and because of the controversial taxonomic position of Psalistops and Trichopelma, a set of terminal taxa representing all subfamilies of Paratropididae (Paratropidinae, Glabropelmatinae), Barychelidae (Barychelinae, Sasoninae, Trichopelmatinae) and most theraphosid subfamilies were included, as well as a diplurid, a nemesiid, and a pycnothelid, the later used to root the cladogram. The matrix with 66 terminal taxa, 2 continuous and 93 discrete characters was analysed with TNT 1.5. We found that Trichopelmatinae is not a monophyletic group, and Psalistops is transferred to Theraphosidae, as well as the barychelid genus Cyrtogrammomma and the paratropidid genus Melloina Brignoli. Cyrtogrammomma was retrieved as the sister group of Trichopelma, and Melloina as the sister group of Holothele Karsch. Psalistops was retrieved as the sister group of Reichlingia Rudloff, and the clade with these two genera is the most basal in Theraphosidae. Barychelidae was found to be monophyletic and the sister group of Theraphosidae. Paratropididae was retrieved as the sister group of Barychelidae + Theraphosidae. The relationship and possible synapomorphies of the three families are herein discussed. This is the first time since Raven (1985) that representatives of all barychelid (Barychelinae, Sasoninae, Trichopelmatinae), paratropidid (Paratropidinae, Glabropelmatinae) and most theraphosid subfamilies have been included in a morphological cladistic analysis. Psalistops comprises two species, P. melanopygius Simon, 1889 (type species) and P. colombianus sp. nov. Psalistops montigena Simon, 1889, P. tigrinus Simon, 1889 and P. zonatus Simon, 1889 are synonymized with P. melanopygius Simon, 1889. Psalistops fulvus Bryant, 1948, P. hispaniolensis Wunderlich, 1988 (fossil), P. maculosus Bryant, 1948, P. venadensis Valerio, 1986 and P. steini (Simon, 1889) are transferred to Trichopelma. Psalistops gasci Maréchal, 1996 is transferred to Hapalopus Ausserer (Theraphosidae); P. opifex (Simon, 1889) and P. solitarius (Simon, 1889) are transferred to Schismatothele Karsch, 1879 (Theraphosidae). Schismatothele solitarius (Simon, 1889) n. comb. is synonymized with Schismatothele lineata Karsch, 1879, n. syn. Psalistops nigrifemuratus Mello-Leitão, 1939 is probably a nemesiid or pycnothelid, and herein considered as nomen dubium in Pycnothelidae. Trichopelma comprises 22 species: Trichopelma nitidum Simon, 1888 (type species), T. coenobita (Simon, 1889), T. steini (Simon, 1889), T. affine (Simon, 1892), T. cubanum (Simon, 1903), T. maculatum (Banks, 1906), T. zebra (Petrunkevitch, 1925), T. banksia Özdikmen & Demir, 2012, T. insulanum (Petrunkevitch, 1926), T. fulvus (Bryant, 1948) n. comb., T. laselva Valerio, 1986, T. venadensis (Valerio, 1986) n. comb., T. huffi sp. nov., T. gabrieli sp. nov., T. tostoi sp. nov., T. goloboffi sp. nov., T. juventud sp. nov., T. laurae sp. nov., T.bimini sp. nov., T. loui sp. nov., T. platnicki sp. nov., and T. hispaniolensis Wunderlich, 1988 n. comb. (fossil). Trichopelma maculosus (Bryant, 1948) n. comb. is synonymized with P. fulvus Bryant, 1948; T. corozalis (Petrunkevitch, 1929) is synonymized with T. insulanum (Petrunkevitch, 1926). Trichopelma astutum Simon, 1889 is transferred to Euthycaelus Simon, 1889, and T. maddeni Esposito & Agnarsson, 2014 to Holothele Karsch, 1879 (Theraphosidae). Trichopelma flavicomum Simon, 1891 is transferred to Neodiplothele (Barychelidae, Sasoninae). The species T. illetabile Simon, 1888, T. spinosum (Franganillo, 1926), T. scopulatum (Fischel, 1927) and T. eucubanum Özdikmen & Demir, 2012 are considered as nomina dubia. Cyrtogrammomma comprises two species: C. monticola Pocock, 1895 (type species) and C. raveni sp. nov.

RESUMO

The genus Typhochlaena C.L. Koch, 1850 consists of five small size arboreal tarantula species with remarkable colored abdominal patterns and a very restricted geographic range in Brazil. Here, we describe the male of Typhochlaena curumim Bertani, 2012, which was collected in an area of Brazilian Atlantic Rainforest. The new record extends the northern limit of the geographic range for both the genus and species. As Typhochlaena spp. are now especially popular and requested in the pet market, and because T. curumim is classified as Critically Endangered, we discuss the impacts of the international trade and other challenges on conservation of the genus.

RESUMO

Actinopus specimens from different localities in Uruguay that did not match any of the previously species present in the country were examined, and four new species are described: A. coboi sp. nov., from Colonia province; A. fernandezi sp. nov., from Salto province; A. simoi sp. nov., from Maldonado province; and A. uruguayense sp. nov., from Colonia and Cerro Largo provinces. The record of the species A. longipalpis for Montevideo is rejected and A. liodon is considered "species inquirenda". Actinopus coboi has spermathecae with an apical lobe diagonally directed; A. fernandezi is characterized by a stylized copulatory bulb and its greater number of retrolateral thorns on tibia II. Actinopus simoi can be distinguished from A. uruguayense by its carapace with a dark coloration; a reddish coloration in the palpal tibia and the shape of its spermathecae and copulatory bulb. With the presence of the Argentinian species-A. gerschiapelliarum, A. puelche and A. insignis-the number of species known in the country is increased to nine. All new species are diagnosed and illustrated; a dichotomous key to all species of Actinopus from Uruguay is also provided.

Assuntos

RESUMO

A female of Cyriocosmus giganteus Kaderka 2016 is described and illustrated for the first time, a new diagnosis of this species is proposed. Cyriocosmus paredesi sp. nov. from Quebrada Putuiman (Marañon River) and Cyriocosmus foliatus sp. nov. from Umaral near Iquitos, both from Loreto Department in Peru, are described, diagnosed, illustrated and keyed. The male of Cyriocosmus sellatus (Simon 1889) from Rio Blanco, the tributary of Rio Tahuyao, Loreto Department in Peru, is redescribed and figured. The distribution area of this species is updated, and difficulties in the identification of this species are discussed.

Se describe e ilustra por la primera vez la hembra de Cyriocosmus giganteus Kaderka 2016, la diagnosis de esta especie es nuevamente propuesta. Se describe, diagnostica e ilustra a Cyriocosmus paredesi sp. nov. de la Quebrada Putuiman (Río Marañón) y Cyriocosmus foliatus sp. nov. de Umaral cerca de Iquitos, ambos del Departamento de Loreto en Perú. Se presenta una clave para las especies. Se redescribe e ilustra el macho de Cyriocosmus sellatus (Simon 1889) de Río Blanco, el afluente del Río Tahuyao, Departamento de Loreto en Perú. Se presenta el área actualizada de distribución de esta especie y se discuten dificultades para su identificación.