Abundância e sazonalidade de Bothriurus signatus (Arachnida, Scorpiones) em diferentes formações vegetais em São Francisco de Paula, RS, Brasil

Abstract

A survey of litter scorpions was conducted in three types vegetation (primary forest, secondary forest and silvicultures) in an area of Araucaria forest in southern Brazil. Pitfall traps were used over 20 months for the sampling of scorpions. A total 165 scorpions of Bothriurus signatus Pocock, 1893 were sampled. Males were more abundant than females and these more abundant than juveniles. The scorpions were more abundant in primary forest and silvicultures than in secondary forest. The activitie peak of scorpions was registered during the spring. The total length of the adult scorpions ranged from 3.05 to 4.52 cm with males significantly larger than females. No pregnant females were registered among collected specimens.