Acentroptera bita is a species of beetle of the family Chrysomelidae. It is found in Panama.
Adults reach a length of about 5.5 mm. They are reddish-yellow, the elytra with various dark markings.
No host plant has been documented for this species.
The species name is derived from bita, which is Anglo-Saxon for small or little and refers to the unusually small size of this species.