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The Argentinean endemic Eucraniini genus Glyphoderus Westwood is redescribed, a key to species and a synopsis of the three known species, . centralis Burmeister, G. monticola Burmeister, and G. sterquilinus (Westwood) is presented. The biology and food relocation behavior of the three species are described. A key to genera of the tribe Eucranini is also presented.