I am no a specialist from south America fauna... but darker legs, black pronotal band anteriorly united... I'd say Odontocera ornaticollis.
In all case, ornaticollis is the older species and I do not know if auropilosa is really valid. In fact, in the original description, Tippmann confronted his new species to O. triliturata Bates 1870 (here), a species that has nothing to do with auropilosa. Evidently, I did not know ornaticollis