RESUMO
The male genitalia of Surazomus algodoal Ruiz & Valente, 2017 are described. Since this is the first attempt to describe male genitalia in the schizomids, we propose new terminology to describe the sclerites of the male genital chamber in the order. We believe that the male genitalia may provide a large set of characters for taxonomic research in schizomids, as the female genitalia have proven to do. The setae and other cuticular structures were investigated using light and scanning electron microscopy (SEM). The female of S. algodoal is described for the first time, including the genitalia, and we highlight the sexual dimorphism present in the species. We also present descriptions of: 1) microtrichia, with respect to their presence/length/distribution, 2) cuticular sensilla, glandular openings and other cuticular structures, proposing new terminology, 3) setae of the pedipalpal trochanter and tarsus. Some changes on the terminology of setae of pedipalpal tibia are also given. These advances may be useful for description in other schizomids. The pygidial glands, mostly ignored in modern papers, were assessed and commented upon.
Assuntos
Aracnídeos , Animais , Feminino , Masculino , Genitália Masculina , Genitália , Sensilas/ultraestrutura , Microscopia Eletrônica de VarreduraRESUMO
Huriini Simon, 1901 currently consists of six genera and 17 species, distributed exclusively in South America. In this work, the huriine genus Guriurius Marta, Bustamante, Ruiz & Rodrigues, gen. nov. is proposed with two new species herein described: Guriurius minuano Marta, Bustamante, Ruiz & Rodrigues, sp. nov. (type species) and Guriurius nancyae Marta, Bustamante, Ruiz & Rodrigues, sp. nov. The female of Atelurius segmentatus Simon, 1901 is described and illustrated for the first time. Scoturius dipterioides Perger & Rubio, 2018 is transferred to Atelurius Simon, 1901 due to the morphological similarity of copulatory ducts of epigyne, and Hurius pisac Galiano, 1985 is transferred to Simonurius Galiano, 1988 due to the similarities in body shape and female genitalia. Simonurius campestratus (Simon, 1901) is synonymized with Simonurius quadratarius (Simon, 1901). The interpretation of genitalic characters in Huriini is discussed. In addition, we provide new distributional records for Admesturius bitaeniatus (Simon, 1901), Ad. mariaeugeniae Bustamante & Scioscia, 2014, Ad. schajovskoyi Galiano, 1988, At. segmentatus Simon, 1901, Scoturius tigris Simon, 1901, Hurius aeneus (Mello-Leitão, 1941), and Simonurius gladifer (Simon, 1901). Except for Urupuyu Ruiz & Maddison, 2015, all huriine genera are rediagnosed in the new context of tribe and genus composition.
RESUMO
Gypogyna Simon, 1900 is revised. Three species are recognized and diagnosed. The type species, Gypogyna forceps Simon, 1900, is redescribed and recorded from several localities in South America. Gypogyna amazonica Ruiz sp. nov. is described based on a male from Manaus, Brazil. Gypogyna mexicana Ruiz Bustamante sp. nov. is described based on specimens of both sexes from the state of Jalisco, Mexico. In addition, some comments on cheliceral dentiton and genital morphology are discussed.
Assuntos
Aranhas , Distribuição Animal , Animais , Feminino , Masculino , Tamanho do ÓrgãoRESUMO
Five new species of thiodinines are described: Atomosphyrus wandae sp. nov. (â, from state of Piauí, Brazil); Cyllodania marietae sp. nov. (ââ, from Ecuador); Tartamura turbo sp. nov. (ââ, from state of Pará, Brazil); Thiodina camilae sp. nov. (ââ, from the Dominican Republic); and Thiodina tyrioni sp. nov. (ââ, from Arizona, U.S.A.). New records of Thiodina firme Bustamante Ruiz, 2017, Tartamura adfectuosa (Galiano, 1977), T. agatelin Bustamante Ruiz, 2017 and T. huao Bustamante Ruiz, 2017 are provided.
Assuntos
Aranhas , AnimaisRESUMO
The Neotropical genus Marma Simon, 1902 is revised. With exception of the holotype of M. femella (Caporiacco, 1955), which was redescribed in previous work, all the other species of the genus were revised based on their types. The type species, M. baeri Simon, 1902, and M. nigritarsis (Simon, 1900) are redescribed based on newly collected specimens. The third and last species presently listed in the World Spider Catalog, M. femella, is confirmed as valid. Two species presently considered synonyms of M. nigritarsis are revalidated: M. rosea (Mello-Leitão, 1941) and M. argentina (Mello-Leitão, 1941). Two species are synonymized: Thysema dorae Mello-Leitão, 1944, syn. nov. with Ocnotelus argentinus Mello-Leitão, 1941 and Paralophostica centralis Soares Camargo, 1948, syn. nov. with Agelista rosea Mello-Leitão, 1941. Pseudoamphidraus variegatus Caporiacco, 1947 and M. trifidocarinata Caporiacco, 1947 are confirmed as synonyms of M. nigritarsis. Six new species from northern/northeastern Brazil are described: M. abaira sp. nov. (â), M. linae sp. nov. (ââ), M. pipa sp. nov. (ââ), M. sinuosa sp. nov. (ââ), M. spelunca sp. nov. (ââ) and M. wesolowskae sp. nov. (ââ). Also, the male of M. argentina is described for the first time. We give new diagnostic illustrations and updated distribution records for all the species of the genus.
Assuntos
Aranhas , Distribuição Animal , Animais , MasculinoRESUMO
Seven new species of Amphidraus Simon, 1900 are described from Brazil: A. araripe sp. nov. (ââ), A. boomerang sp. nov. (â), A. cornipalpis sp. nov. (ââ), A. draconitupan sp. nov. (ââ), A. manauara sp. nov. (ââ), A. sacrificatus sp. nov. (â) and A. shenlong sp. nov. (â). Morphological variation in the male palp of A. draconicaudatus Salgado Ruiz, 2017 and A. caxiuanan Salgado Ruiz, 2017 is discovered and evaluated.
Assuntos
Aranhas , Animais , Brasil , MasculinoRESUMO
In this paper we redescribe the type species of Mago O. Pickard-Cambridge, M. intentus O. Pickard-Cambridge, and describe Mago brimodes Ruiz Maddison sp. nov. from Ecuador. Based on both morphological features and the 16SND1 gene region, we concluded that the larger spiders traditionally identified as Mago, such as Mago acutidens Simon and related species, are not closely related to the small dark M. intentus (type species) and M. brimodes. Matinta Ruiz Maddison gen. nov. is therefore proposed to hold most species previously included in Mago. The following species are transferred from Mago to the new genus: Matinta acutidens (Simon, 1900) comb. nov. (type species), Matinta apophysis (Costa Ruiz, 2017) comb. nov., Matinta balbina (Patello Ruiz, 2014) comb. nov., Matinta chickeringi (Caporiacco, 1954) comb. nov., Matinta delicata (Patello Ruiz, 2014) comb. nov., Matinta fasciata (Mello-Leitão, 1940) comb. nov., Matinta fonsecai (Soares Camargo, 1948) comb. nov., Matinta furcata (Costa Ruiz, 2017) comb. nov., Matinta jurutiensis (Patello Ruiz, 2014) comb. nov., Matinta longidens (Simon, 1900) comb. nov., Matinta mimica (Costa Ruiz, 2017) comb. nov., Matinta opiparis (Simon, 1900) comb. nov., Matinta pardo (Costa Ruiz, 2017) comb. nov., Matinta procax (Simon, 1900) comb. nov., Matinta saperda (Simon, 1900) comb. nov., Matinta silvae (Crane, 1943) comb. nov., Matinta similis (Patello Ruiz, 2014) comb. nov., Matinta steindachneri (Taczanowski, 1878) comb. nov. and Matinta vicana (Simon, 1900) comb. nov. Mago dentichelis Crane, 1949 is transferred to Noegus Simon.
Assuntos
Aranhas , Distribuição Animal , Estruturas Animais , Animais , Tamanho Corporal , Equador , Tamanho do ÓrgãoRESUMO
Surazomus saturninoae sp. nov. is described from eastern Amazon. The male has a pentagonal flagellum, similar to those of three other species in the genus. These four species are herein gathered as the arboreus-group of Surazomus. We present a brief synopsis of chaetotaxy description in hubbardiines and several homology proposals for the flagellum of the species in the arboreus-group: the posterior lobes may be homologous to the lateral lobes of hubbardiine species with trilobed flagella; the setal brush with 4-5 setae on the posterior lobe may be composed of one Dl2 seta and enlarged lobular microsetae; the single, median posterior coupling pocket may be homologous to the pair of posterior pockets seen in other hubbardiines; the single, median anterior coupling pocket may be homologous to the pair of pockets on the anterior border of the flagellum seen in other hubbardiines. Based on the morphology of these pockets and the chelicerae within Surazomus, we discuss the anchoring mechanism during the mating march.
Assuntos
Aracnídeos/classificação , Aracnídeos/fisiologia , Flagelos/fisiologia , Reprodução , Sensilas/fisiologia , Distribuição Animal , Estruturas Animais/anatomia & histologia , Estruturas Animais/crescimento & desenvolvimento , Animais , Aracnídeos/anatomia & histologia , Feminino , Masculino , Sensilas/anatomia & histologiaRESUMO
Two new species of Neonella Gertsch, 1936 from Brazil are described: N. gyrinus sp. nov. (â) from Caseara, state of Tocantins, and N. choanocytica sp. nov. (ââ) from Piracuruca, state of Piauí. Since N. choanocytica is one of the smallest species of jumping spiders, detailed description of its tarsal tuft and spinnerets is given for future comparison. New records of N. salafraria Ruiz and Brescovit, 2004 are provided.
Assuntos
Aranhas , Animais , Brasil , BesourosRESUMO
Four new species of Mago O. Pickard-Cambridge, 1882 are described. Mago furcatus sp. nov. and Mago mimicus sp. nov. are described from Ecuador (Orellana and Napo provinces, respectively), both based only on the male holotypes. Both sexes of Mago pardo sp. nov. and the male of Mago apophysis sp. nov. are also described from the state of Pará, Brazil. A map with records of these species is given.