It is also one of the most commonly employed and most efficient method for sampling litter-dwelling and ground-foraging ants in other environments like rain forest ecosystem, especially when it is combined with the Winkler extraction method Agosti et al. Agosti, J. Pitfall trapping as a method to sample ground-foraging ant assemblage of the Caatinga biome and potential factors responsible for lower pitfall trap performance during rainy season are discussed. An ergatandromorph Formica exsecta Nyl. In conclusion, pitfall trapping seems to be a satisfactory method if the aim is to obtain data about species composition of ground-foraging ants assemblages of the Caatinga biome and it should be preferentially performed in the dry season if time is a limiting factor.
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