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ABSTRACT. Phoneutria bahiensis Simó & Brescovit, 2001 is a large ctenid spider inhabiting the states of Bahia and Espírito Santo, Brazil. Considering that it is probably endemic, this species was included in the Brazilian red book of threatened species. Here, we predict the distribution range of P. bahiensis using 19 bioclimatic variables in the model design. The most septentrional record for this spider was indicated for northern Bahia. The model predicts that the distribution range covers the Atlantic Forest from the state of Paraíba to Rio de Janeiro, with the best suitable area in the Atlantic Forest of the state of Bahia. The bioclimatic variable with the best contribution to the model was precipitation in the driest quarter. Based on collected data, the species inhabits Ombrophilous Forests and Restinga vegetation, two ecosystems of the Atlantic Forest biome. In the best-predicted area of distribution, eleven Conservation Units were included. This information could be considered for future conservation plans of this species.

redescription and distribution of Latrodectus geometricus in Uruguay (Araneae: Theridiidae). Biota Neotrop. 13(1): http:// www.biotaneotropica.org.br/v13n1/en/abstract?short-communication+bn02813012013Abstract: This study provides the first accurate records of Latrodectus geometricus C. L. Koch, 1841 for Uruguay and extends the known distribution of this species to the Southeastern region of South America. Data and figures of the genitalic morphology for the recognition of the species and natural history in this country are indicated. In Uruguay L. geometricus was mainly restricted to urban areas at the west of this country and it is associated with locations with high human activity.

Four specimens of Phoneutria bahiensis Simó & Brescovit 2001 were identified amongst material of a faunal rescue carried out in Itapebi county, southern Bahia. This record enhances the geographic distribution of the species, since to date, the literature restricts the occurrence of P. bahiensis only to the city of Ilhéus and Salvador.Key words: Phoneutria bahiensis, geographic distribution, Bahia. ResumoForam identificados quatro espécimes de P. bahiensis, decorrentes de um resgate de fauna realizado no município de Itapebi, extremo sul da Bahia. Este registro amplia a distribuição geográfica da espécie, visto que a literatura, até o momento, restringia a ocorrência da P. bahiensis apenas às cidades de Ilhéus, no sul da Bahia e Salvador. Palavras-chave: Phoneutria bahiensis, distribuição geográfica, Bahia.Biota Neotropica v5 (n1a) http://www.biotaneotropica.org.br/v5n1a/pt/abstract?short-communication+bn013051a2005

This paper investigates the structure and distribution of the leaf-litter ant's assemblage between the inner zones of natural Treefall Gaps in a Atlantic

Allocosa brasiliensis is a sand-dwelling wolf spider considered a good bioindicator to evaluate the quality of coastal dune ecosystems from Uruguay. Habitat fragmentation and human activities have impacted and reduced the Southern Uruguayan coast during the last decades. The aim of the present study was to evaluate the density, surface activity and habitat preference of A. brasiliensis in beaches with different human impact. For that purpose, we sampled during the night with head lamps and applied the capture-mark-recapture method. Females were more abundant than males and were the most recaptured sex. The most fragmented beaches showed lower number of burrows and individuals, especially in immatures stages. We found that the most suitable sandy habitat for A. brasiliensis should present a vegetation cover optimum of 25% -50% of the surface. This study could provide tools for the implementation of future management conservation plans of the Southern Uruguayan coastline.

The objective was to register occurrence of the genus Charinus Simon, 1892, in two isolated fragments of Atlantic Rain Forest in Salvador; the Metropolitan Park of Pituaçu with 382 ha and 19º "Batalhão de Caçadores" -Brazilian Army with about 166 ha. A total of 17 individuals have been collected through samples of leaflitter, all of them from genus Charinus. Although the reduced abundance, it was noted that the individuals of this sort can be found in urban fragments that show high degree of isolation and with historical of intense anthropic perturbation, however, the richness is rather low.