The Argentinean endemic Eucraniini genus Glyphoderus Westwood is redescribed, a key to species and a synopsis of the three known species, G. 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.