Probaenia tibiella is a species of beetle of the family Chrysomelidae. It is found in Bolivia, Brazil (Goiás, Matto Grosso), Colombia and Peru.
Adults reach a length of about 7.8 mm. Adults are black, with a red spot on the head between the eyes. The elytron is testaceous with green spots at the scutellum, three blackish-green bands, as well as a green band.
The food plant is unknown.