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Abstract
Gamasiphis Berlese is one of the most diverse genera of Ologamasidae, with 68 described species, corresponding to about 15% of the species of the family. Until now, a single species of this genus was known from Brazil. Gamasiphis salvadori sp. nov., Gamasiphis flechtmanni sp. nov. and Gamasiphis edmilsoni sp. nov. are described based on the morphology of adult females and males collected from litter and soil in Piracicaba, São Paulo State, Brazil. The holotype of Gamasiphis plenosetosus Karg, 1994 was examined, given its close similarity with the latter species, and complementary morphological information about it is provided. A key for the separation of females of the 60 recognizable world species of Gamasiphis is provided.
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Acknowledgements
This work was financially supported by CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior) and CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico), Brazil. We are very grateful to Giuseppino Sabbatini and Roberto Nannelli (Istituto Sperimentale per la Zoologia Agraria, Florence, Italy) for the pictures of the species described by A. Berlese and to Jason Dunlop (Arachnologischen Sammlung des Museums für Naturkunde, Berlin, Germany) for loaning the holotypes of the species described by W. Karg. We thank Farid Faraji (MITOX Consultants, the Netherlands) and an anonymous reviewer for their numerous suggestions for the improvement of this paper.
