Pronotum of Glyphoderus centralis. Illustration by Federico Ocampo.	Distribution of Glyphoderus centralis. .

Diagnosis: Males. This species is separated from other Glyphoderus species by the shape and placement of the pronotal horns and tubercles (see illustration). Glyphoderus centralis has the pronotum with two transversally elongated tubercles on apical half and two horns in middle; horns and tubercles on margin of central depression; anteromedial horn with ‘‘arms’’ robust, with medial anterior notch. No morphological characters were found to diagnose females of this species, females can be identified only by association with males.

Distribution: ARGENTINA: Catamarca. Chaco: Taco Pozo; Salta: Chaco Occidental, Los Colorados (100 km NE). Cordoba. La Rioja. San Luis: Talita. Santiago del Estero: Beltrán; Choya; El Charro; Fernández; Río Salado; San Gregorio; Puna. Tucuman.