Gonzalo D. Rubio

• Zoologist - Ph.D.
• Researcher at National Scientific and Technical Research Council (CONICET), Argentina

In the present work, the fauna of jumping spiders or Salticidae of the Iberá Wetlands was investigated. Patterns of species richness, composition and endemism in hygrophilous woodlands and savannah parklands in ten locations covering the Iberá Wetlands were analyzed. Samples were obtained using four methods: garden vacuum, pitfall trap, beating and...

Una obra imprescindible no solo para naturalistas y aficionados, sino también para jóvenes aracnólogos y especialistas en la materia. Salticidae representa el grupo de arañas con mayor riqueza de especies en el mundo. Son particularmente diversas en climas tropicales y subtropicales, siendo el Nordeste la región de mayor concentración de especies p...

As part of a fragmented landscape, yerba mate and tea are perennial agroecosystems that provide habitat continuity for diverse arthropods. Our objective was to characterize the influence of these two agroecosystems on the native fauna of salticids, measuring the levels of richness, diversity, and density. We hypothesized that the agroecosystems stu...

We present a taxonomic study with the description of three new species of Chira Peckham & Peckham, 1896: C. stolari sp. nov. (♂♀) from Pernambuco, Brazil; C. ivyatenea sp. nov. (♂♀) from Misiones, Argentina and Santa Catarina, Brazil; and C. hana-garthi sp. nov. (♀) from La Paz, Bolivia; and a tentative identification key for 12 (of 14 known) speci...

We present a taxonomic study with descriptions of the following seven new species from Argentina: Ceriomura intaca sp. nov. (♂♀) from Misiones; C. lacinia sp. nov. (♂♀) from Misiones; Thiodina tefyta sp. nov. (♂♀) from Salta, Tucumán and Córdoba; Lumptibiella demagistrisi sp. nov. (♂♀) from Buenos Aires; Zygoballus chekokue sp. nov. (♂♀) from Misio...

Within the diverse South American fauna of jumping spiders, the genus Jollas comprises small spiders, generally associated with grasslands or flooded areas and rocky areas with bare soil. In Argentina, six species are known for this genus. In the present work, we describe a new species of Jollas for the north of the country, with unique beetle mimi...

As a part of a general revision of the South American Dendryphantini, type materials of several taxa have been examined. Certain inconsistencies regarding the species composition of the genus Naubolus Simon, 1901 have been observed. In order to resolve these inconsistencies the type series of two Naubolus species have been studied. The unknown male...

Mimicry, the superficial resemblance between organisms of two or more species, is considered a textbook example for natural selection, for which it is assumed that predators are important selective agents. Ant mimicking spiders have received considerable attention in studies on mimicry because they include examples with remarkable, species-specific...

We present a taxonomic study with descriptions and illustrations of two new species of Colonus F.O. Pickard-Cambridge, 1901 (Araneae, Salticidae): Colonus gracilis sp. n. (♂♀) from Argentina, and Colonus alineae sp. n. (♂♀) from Argentina and Brazil. In addition, we present the first description of the female of C. melanogaster (Mello Leitão, 1917)...

A new species of the ant-resembling jumping spider tribe Simonellini, Flurica amazonica sp. nov., is described from the Southwest Amazon forest in Beni Department, Bolivia. The species can be separated from its only congener Flurica sikimira Perger & Rubio, 2022 by the male palp lacking a dorsal tibial apophysis, the ventral tibial apophysis shorte...

In this work, the results of a survey for species of Fluda Peckham & Peckham, 1892 in primary forest in five Bolivian forest ecoregions are reported. Fluda dauca sp. nov. is described from Southwest Amazon forest and F. thuruampara sp. nov. from Bolivian Yungas forest. Fluda perdita (Peckham & Peckham, 1892) is reported from Bolivia for the first t...

ABSTRACT. A study of the jumping spider genus Ilargus Simon, 1901 from Argentina, with live colour photographs of all recorded species, is presented. Two new species, I. delnoa sp.n. (#$) and I. carinae sp.n. (#), are described. All the Ilargus species occurring in the country are diagnosed and provided with new geo- graphic records, and a potentia...

A new species of ant-resembling sac spider of the subfamily Castianeirinae, Grismadox elsneri sp. nov., is described from the Sub-Andean area of the Bolivian orocline. The species was collected from savanna grass along the edges of the Chiquitano forest and is a putative mimic of the carpenter ants Camponotus cf. crassus or C. cf. blandus.

A new genus and species of the ant-resembling jumping spider tribe Simonellini, Flurica sikimira gen. et sp. nov., from the Yungas mountain forest in the Bolivian Andes is described. Erica eugenia Peckham & Peckham, 1892 is recorded from Bolivia for the first time. Adults of both species are possibly mimics of the turtle ant Cephalotes pusillus (Kl...

The new genera Ahijuna gen. n. and Lumptibiella gen. n. (Araneae, Salticidae) including four new species, A. patoruzito sp. n., L. camporum sp. n., L. chacoensis sp. n. and L. paranensis sp. n., are described from specimens recently discovered in areas endangered by wildfires in Argentina. The species of these new genera share the typical structure...

Sampling in five locations in four forest ecoregions of Bolivia revealed seven species of the ant-like jumping spider tribe Sarindini. Six species, Martella utingae, Sarinda armata, Sarinda marcosi, Simprulla argentina, Simprulla nigricolor, and Zuniga magna, are reported for Bolivia for the first time. The new Bolivian records for M. utingae, S. a...

A new genus and two new species of ant-resembling castianeirine spiders are described from the Neotropics. Grismadox gen. nov. comprises four species: Grismadox baueri sp. nov., and Grismadox mazaxoides (Perger & Duperré, 2021) comb. nov. from Bolivia, and Grismadox karugua sp. nov. (type species) and Grismadox mboitui (Pett, 2021) comb. nov. from...

A faunistic revision of the jumping spider genus Titanattus Peckham & Peckham, 1885 from Argentina, and full colour photographs of living specimens for every recorded species, are presented. A new species, T. sciosciae n. sp. (male and female, from Argentina), is described. Two different groups within the genus, andinus and pegaseus, are proposed....

According to their nature, riparian environments are represented in reduced areas; they are vulnerable to water downspouts and dams. This paper describes and illustrates a new species of jumping spider, Pachomius palustris sp. nov., an inhabitant of the riparian vegetation from the Paraná River banks, in the Argentinian side. The new species was p...

Knowledge on spiders in Paraguay is abysmal, even in Salticidae, the most diverse spider family. Prior to this study, 40 species were registered for Paraguay, which may be underestimating the true species diversity in the country by five times or more. This study provides a first baseline for jumping spiders in Paraguay from evaluation of three sal...

Most thiodinines are rare in collections, and this can lead to fragmented knowledge and some mistakes. In this brief contribution Titanattus acanjuba Bustamante & Ruiz is newly synonymized with T. parvus (Mello-Leitão) and is illustrated by new photographs and drawings. Diagnostic characters for its recognition are provided.

Our latest collections in northeastern Argentina include new species of jumping spiders (Salticidae) that indicate that the diversity of this group in Argentina is indeed underestimated. This paper describes and illustrates a new species, Pachomius areteguazu sp. nov., an inhabitant of the grasslands of northeastern Argentina. Within the genus Pach...

A new species of ant resembling sac spider of the subfamily Castianeirinae, Myrmecotypus haddadi sp. nov. is described from the Sub-Andean area at the Bolivian orocline. The species was collected from low herbaceous vegetation along the edges of the Chiquitano and Cerradao forest.

Three species of Synemosyna Hentz, 1846 were recorded during a survey in five Bolivian forest ecoregions: S. aurantiaca (Mello-Leitão, 1917), S. myrmeciaeformis (Taczanowski, 1871) and S. nicaraguaensis Cutler, 1993. Synemosyna aurantiaca and S. nicaraguaensis are recorded for Bolivia for the first time and the previously unknown male of S. nicarag...

A new species of ant-mimicking spider of the subfamily Castianeirinae, Myrmecotypus rubrofemo­ratus Perger and Rubio, new species (Araneae: Corinnidae), is described from the Pre-Andean area of the Bolivian orocline. Adults of M. rubrofemoratus new species resemble the carpenter ant Camponotus femora­tus Forel, 1907, which is considered one of the...

We present data from a new study of Corythalia conferta Bayer, Höfer & Metzner, a recently described species that inhabits southern South America. A distribution update, morphological illustrations, and phylogeny of related Corythalia C. L. Koch species are presented. Also, we present data that suggest that this species may be the first Corythalia...

Sympolymnia, a new genus of myrmecomorph jumping spider belonging to the tribe Simonellini Peckham, Peckham & Wheeler, 1889, is described. It comprises five species: the type species, Sympolymnia lucasi (Taczanowski, 1871), comb. nov., Sympolymnia lauretta (Peckham & Peckham, 1892), comb. nov., Sympolymnia edwardsi (Cutler, 1985), comb. nov. and Sy...

Deforestation and land-cover changes have transformed the Argentinian Dry Chaco into a mosaic dominated by crops and ranch fields. Although land-use activities are seen as one of the major driving forces of biodiversity loss, the specific impacts in this ecoregion are poorly understood. In this study, we analyse the effects of land uses and managem...

Myrmecotypus tahyinandu sp. n. is described from the Bolivian Chiquitano forest, and M. niger Chickering, 1937 is recorded from Bolivia for the first time. The morphological differentiation among the closely related M. tahyinandu sp. n. and M. iguazu Rubio & Arbino, 2009 is likely attributable to the selection for specific ant mimicry. Adults of M....

Tapsatella albocastanea, new genus and species (Araneae, Salticidae) is described from specimens recently collected in a quebrachal forest in Chaco Province, Argentina. The dorsal stripes, shape of the tegulum, presence of small spherical spermathecae and shape of the external epigynum suggest that this species is a relative of some Wedoquella and...

Wedoquella apnnea sp. nov. and W. karadya sp. nov., two new species of the jumping spider subtribe Freyina are described and illustrated from specimens recently collected in Misiones and Chaco provinces, Northeastern Argentina. The new species are placed into a new group of Wedoquella because, although in body morphology they resemble the Phiale gr...

Recently the first records of the genus Pseudofluda Mello-Leitão, 1928 were reported in Argentina; represented by a single species, P. pulcherrima, known only by the male. Two new species of this salticid genus are described from Argentina: P. capandegui sp. nov. and P. pergeri sp. nov., and the females of P. pulcherrima (first description of femal...

The jumping spider genus Helvetia Peckham & Peckham 1894 (Araneae: Salticidae: Chrysillini) is recorded for the first time from Colombia, with the species H. albovittata Simon, 1901 associated with ant nests in mangrove forest from south of the Gulf of Morrosquillo, Caribbean Colombia. This is the first record of the genus from Colombia and the nor...

Urbanization and urban landscape characteristics greatly alter plant and animal species richness and abundances in negative and positive directions. Spiders are top predators, often considered to be sensitive to habitat alteration. Studies in urban environments frequently focus on ground-dwelling spiders or on spiders in built structures, leaving a...

The replacement of native forests by tree plantations affects the diversity of biological communities, particularly in highly diverse tropical and subtropical ecosystems such as the semi-deciduous Atlantic forest. Previous studies in this ecosystem have focused on vertebrates, while only a few studies have been performed on the relationship between...

Fly resemblance in arthropods is much less common than e.g., resemblance to ants or wasps, and has been mainly observed in beetles. Putative fly mimicry in arachnids has been reported only from the jumping spider genus Saitis. However, recent literature has attributed the fly-resembling characteristics in Saitis to sexual signalling during courtshi...

Numerous new spider species are waiting to be described, and in many cases knowledge is incomplete because species are known from a single sex. In this contribution the female of the jumping spider Lyssomanes miniaceus is described and its morphology is illustrated. Females are distinguished by having spherical, slightly oval spermathecae, the copu...

A new species, Zodarion tireboluensis sp. nov. is described and illustrated based on material collected in the Giresun Province of Turkey. Differences between the new species and the closely related Zodarion aurorae Weiss, 1982 are discussed. An updated dichotomous key to the known species of the "germanicum" group is provided.

The Atlantic Forest is one of the key biodiversity hotspots in the world. Its understory can be dominated by species such as the native bamboo Chusquea ramosissima (tacuarembó), which can be an aggressive gap colonizer and change biotic and abiotic conditions compared to mature forest. A strong association has been observed between Salticidae spide...

The genus Tibellus Simon, 1875 currently includes 51 species (WSC 2016); it presents some taxonomic difficulties, due to morphological variability, and similarities among some congeners (Efimik 1999). Studies on the genus were undertaken by Gertsch (1933) and Schick (1965) from America, Tikader (1980) from India, Van den Berg & Dippenaar-Schoeman (...

On the basis of literature review and material examination of seven arachnological collections, the geographic distributions of ten species of Lyssomanes inhabiting Argentina and neighboring countries are provided, extending the known range of the genus in southern South America. New generic and specific records are presented from Brazil, Uruguay a...

A new species of the salticid genus Ceriomura Simon, 1901, C. damborskyae n. sp. from Northeastern Argentina, including the first known males of the genus, is described. Diagnostic characters for its recognition are provided. The embolus arising on the dorsal side of the bulb is proposed as a synapomorphy of the genus within the tribe Gophoini Simo...

Faunistic studies, with a taxonomically complete inventory of species, provide an important source of quantitative compiled information for several and specific regions. This information can be used in diversity analysis and has great potential in setting conservation priorities. In this study, I used the relatively well known salticid spider fauna...

The female of Balmaceda nigrosecta Mello-Leitão, 1945 is described and illustrated for the first time. In addition, this paper further illustrates the male, and provides the first known observations on the natural history of this species, including habitat, cohabitation, and prey capturedata.

Three new species of the uloborid genus Orinomana Strand, O. penelope n. sp.from Ecuador, O. viracocha n. sp.from Peru, and O. florezi n. sp.from Colombia, are described. Additionally, the male of O. ascha Grismado, from Northwestern Argentina, is described for the first time. This material includes the first males known of the genus, providing dia...

Citation: Rubio GD, Argañaraz CI, Gleiser RM (2015) A new species of jumping spider Neonella Gertsch, with notes on the genus and male identification key (Araneae, Salticidae). ZooKeys 532: 1–14. Abstract The American genus Neonella Gertsch, 1936 consists of very small jumping spiders whose biology is not well known. The genus currently includes el...

The spider diversity from yungas vegetation in northwestern Argentina is studied, integrating two levels: local (α diversity, community structures) and a projection at regional level of diversity (β diversity). Twenty six sites in Salta Province were sampled, representing different ambient/altitudinal strata of yungas sensu stricto (SP= pedemontane...

A new species of the spider genus Castianeira (Araneae: Corinnidae) from Argentina, C. coquito, is described on the basis of male and female specimens collected in northeastern Buenos Aires Province and the Ciudad Autónoma de Buenos Aires, Argentina. This new species is characterized by its diminutive size and by the very globose copulatory bulb wi...

We review the American spider genus Arachosia O.P.-Cambridge, and present a descriptive taxonomic study with a comparative dichotomous key including 21 species, of which seven are newly described (A. avalosi sp. nov., A. carancho sp. nov., A. kapiipeoi sp. nov., A. magna sp. nov., A. monserrate sp. nov., A. pinhalito sp. nov. and A. tungurahua sp....

The Neotropical genus Austrohahnia Mello-Leitão, 1942 is revised, comprising four species from Argentina. The genus is here transferred to the subfamily Hahniinae Bertkau, 1878 from Cybaeolinae Lehtinen, 1967. Austrohahnia is diagnosed by a single synapomorphy, short setae ventrally on the abdomen, in immature as well as adult stages. The type spec...

The relatively poor knowledge of the spiders of Argentina provided the impetus to set up a checklist for Misiones province, and the primary focus of this study was on the jumping spiders (Salticidae) which was done with the aim of providing a baseline for future research. This checklist compiles 13 subfamilies, 66 genera and 106 known species of sa...

The spider genus Mazax O. P.-Cambridge, 1898 (Araneae: Corinnidae: Castianeirinae) is reported from South America for the first time. A new species, M. ramirezi sp. nov., is described and illustrated, and SEM images of the genus Mazax are presented here for the first time. The exclusive morphology of the secondary spermathecae (not oval and lung-sh...

We describe the mimetic relationship between the ant-like spider Myrmecotypus iguazu Rubio & Arbino 2009 (Araneae: Corinnidae) and the carpenter ant Camponotus sericeiventris Guérin (Hymenoptera: Formicidae), studied in a subtropical rainforest in Iguazú National Park, Argentina. The morphological adaptations, aspects of coloration, and behavior re...

The female of Aysha yacupoi Brescovit, 1992 is described and illustrated for the first time. Males and female specimens were observed together in the same plants. Some data on natural history are presented.

A new species of the orb-weaving spider genus Aculepeira Chamberling & Ivie 1942, A. morenoae new species, is de-scribed and illustrated based on male and female specimens from the Argentinean natural flooding pampas grasses.

The male of Micrathena shealsi Chickering, 1960 is described and illustrated for the first time. New geographic records of this species are provided, revealing that M. shealsi inhabits the higher altitudinal belts (1000–3000 m) of the Yungas ecoregion (mountain forests and rainforests from Argentina). Male specimens were observed in the same web of...

Male genital mutilation is a common mechanism by which males reduce sperm competition by plugging female insemination ducts with different parts of its own genital system. This behavior is frequent in many spider families but is uncommon in Haplogynae. The reproductive biology of Dysderoidea is not well studied and the data is fragmentary; male gen...

A new species of the romaleid grasshopper genus Zoniopoda Stål (Romaleidae: Romaleini) is described and illustrated from the Sierras Chicas of Córdoba Province, central Argentina. A cladistic analysis based on morphological characters indicates that the genus Zoniopoda constitutes a monophyletic group and that Zoniopoda serrana n. sp. must be assig...

New records of the spider Chibchea salta Huber 2000 (Araneae, Pholcidae) from northwestern Argentina are provided, and the potential range of this species is modeled. Two presence-only methods, Maxent and Bioclim, were run using 19 bioclimatic parameters at a resolution of 30 arc seconds. The climatic profile of C. salta is described, and the relat...

The Iberá Marshlands RAMSAR reserve, in the northeast of Argentina, is one of the largest and most important wetlands of America. In this study we assess orb-weaving spider (Araneae: Orbiculariae) diversity in this reserve, analyzing different facets of local diversity (species richness, diversity, evenness and taxonomic distinctness), and the cont...

The spider family Symphytognathidae is reported from Argentina for the first time. Anapistula yungas, a new species of this family is described and illustrated. The specimen was collected during an ecological study of biodiversity in different sites from northwestern Argentina. Dichotomous key to Neotropical female species of genus Anapistula is pr...

The male of Dubiaranea difficilis (Mello-Leitão 1944) is described and illustrated for the first time. New geographic records of this species are provided, and its potential distribution is modeled using MAXENT. The actual and potential distribution of Dubiaranea difficilis proved to be much larger than the hitherto known records. This species inha...

The Castianeirinae genus Myrmecotypus was described by O. Pickard-Cambridge (1894) and currently includes eight species. All of them, except the atypical M. lineatus (Emerton 1909) (only record from USA), occur in the Neotropical region (known from Mexico to Panamá), Panamá being the southern most representative distribution of genus. Reiskind (196...

Spiders are a megadiverse group that can be useful indicators of the overall species richness and health of biotic communities. The spider diversity in subtropical forests of the Neotropical region are not yet well known, especially in Argentinean subtropical forests where systematic fieldwork has not been done until recently. The Great Chaco is ve...

Recibido 24-V-2006. Corregido 08-Xii-2006. Aceptado 07-V-2007. Abstract: Spiders (Arachnida: Araneae) associated with two degraded forests in the humid Chaco of Corrientes, Argentina. The advancing degradation of the forest in the biogeographic Chaco province (Argentina) produces an important loss of its little known biodiversity. We studied the sp...

Two environments of Mburucuyá National Park (hygrophilous woodland and savannah-park) were considered to analyze patterns of abundance of the Trochosippa anomala, Alopecosa humilis, Lycosa thorelli, Hogna bivittata and Trochosa sp. The spiders were collected by pitfall trappings and sieve of dead leaves using seasonal samplings (2003-2004). Tempora...

A preliminary species checklist of Araneae from Center North of Corrientes province, Argentina, is presented. The specimens were collected in 19 departments and were deposited in the collection of Catedra de Artropodos, Facultad de Ciencias Exactas y Naturales, Universidad Nacional del Nordeste (CARTROUNNE). A total of 76 species, 53 genera and 20...

Se analizaron algunos aspectos ecológicos de Aglaoclenus lagotis Holmberg, principalmente su presencia en las especies vegetales Aechmea distichantha Lem. y Bromelia serra Lem. (Bromeliaceae). El estudio se adelantó en la localidad de Laguna Brava. Provincia de Corrientes. Argentina. Se utilizó el método de muestreo por bandeado y registro (taxiado...