Probaenia ruficeps is a species of beetle of the family Chrysomelidae. It is found in Peru.
Adults reach a length of about 8 mm. Adults are shining red, with the antennae, three thoracic bands and the hind legs partly black. The elytron is rufous, with a sinuous sutural band and a shorter lateral band, as well as a transverse band at the middle, another before the apex and an apical band. These bands are blackish-cyan.
The food plant is unknown.