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[[Media:Liu, C., Fischer, G., Economo, E.P. 2015. A rare ant on Samoa first record of the cryptic subfamily Proceratiinae.pdf|Liu, C., Fischer, G. & Economo, E.P. 2015. A rare ant on Samoa: first record of the cryptic subfamily Proceratiinae and description of a new Proceratium Roger species. Journal of Hymenoptera Research. 46:35-44.]]