Chaeridiona picea is a species of beetle of the family Chrysomelidae. It is found in India (Madhya Pradesh, Maharashtra, Odisha, West Bengal).
Adults reach a length of about 5 mm. They are piceous, the pronotum and elytra with a slight metallic purplish tinge. The apex of the elytra is dark brown, while the legs are light brown or yellowish.
Larvae have been reared from Commelina species, while adults have been collected on Commelina bengalensis and Commelina nudiflora.