Ketterl, J., Verhaagh, M., Bihn, J.H., Brandão, C.R.F., & Engels, W. 2003 Spectrum of ants associated with Araucaria angustifolia trees and their relations to hemipteran trophobionts.. Studies on Neotropical Fauna and Environment 38(3): 199-206.

Notes: The community of ants inhabiting A. angustifolia trees or foraging on this conifer was studied in the rain forest reserve Pró-Mata on the Serra Geral of Rio Grande do Sul, southern Brazil. Ants of 44 species were recorded of which 23 were nesting on A. angustifolia trees. Data on their abundance and relationships to trophobionts are presented. Amongst the latter, Planococcus citri was by far the most common species. It was associated with ants of the genera Crematogaster, Solenopsis (Diplorhoptrum), Linepithema, Myrmelachista and Camponotus. The results are discussed under ecological and biogeographical aspects.