Probaenia vittulosa is a species of beetle of the family Chrysomelidae. It is found in Bolivia, Brazil and Peru.
Adults reach a length of about 6-6.5 mm. The underside is yellowish-black, while the upperside is yellow. The antennae are black. The posterior angle of the elytra is laterally produced into a sharp tooth and the apical fascia and numerous bands are blackish-bronze.
The food plant is unknown.