Sobre uma nova sub-espécie geográfica para Bothriurus rochai Mello-Leitão (Scorpiones, Bothriuridae)
DOI:
https://doi.org/10.5380/abpr.v29i0.586Palavras-chave:
biogeografia, Bothriurus, Caatinga-Brasil, biogeography, Caatinga-Brazil, biogeographie, Caatinga-Brésil.Resumo
O estudo de alguns escorpiões do genero Bothriurus, coletados na região de Grajau no estado do Maranhão, Brasil, permite identificá-los como uma espécie próxima de Bothriurus rochai Mello-Leitão. Tomando-se em conta as diferenças existentes entre o meio-ambiente árido da Caatinga onde ocorre a forma típica de Bothriurus rochai e aquele bem mais úmido da região de Grajau, uma nova sub-espécie geográfica é proposta à presente. A descoberta dessa nova localidade para o genero Bothriurus é importante porque ela amplia a área de distribuição do gênero bem mais para oeste dessa região do Brasil, situando dessa maneira os Bothriuridae praticamente dentro da região Amazônica global definida por EITEN (1974).
ABSTRACT
The study of some scorpions belonging to the genus Bothriurus, collected in the region of Grajau in the state of Maranhão, Brazil, showed that they are, closely allied to the species Bothriurus rochai Mello- Leitão. Taking into account the environmental differences between the very arid « Caatinga » type formation inhabited by the typical form of Bothriurus rochai, and the rather humid conditions in the area of Grajau, a new geographical sub-species is proposed here. The discovery of this new locality for the genus Bothriurus is important because it represents a western extension of the range of distribution of the genus in this region of Brazil, thus placing the bothriurids within the global Amazonian region as defined by EITEN (1974).
RÉSUMÉ
Létude de quelques scorpions appartenant au genre Bothriurus, collectés dans la région de Grajau dans lEtat du Maranhão au Brésil, a permis de les identifier comme une espèce très voisine de Bothriurus rochai Mello-Leitão. Compte tenu des différences existantes entre lenvironnement très aride, type Caatinga, où habite la forme typique de Bothriurus rochai, et celui bien plus humide de la région de Grajau, une nouvelle sous-espèce géographique est proposée. La découverte de cette nouvelle station pour le genre Bothriurus est importante car elle étend la répartition du genre beaucoup plus à lOuest dans cette région du Brésil, et place finalement les Bothriuridae pratiquement à lintérieur de la région amazonienne globale au sens DEITEN (1974).
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