Chaeridiona metallica is a species of beetle of the family Chrysomelidae. It is found in India (Karnataka, Kerala, Madhya Pradesh, Maharashtra, Tamil Nadu).
Adults reach a length of about 4.9âÂÂ5 mm. The pronotum and elytra are metallic green in the middle and purplish-red laterally, while the legs and apex of the elytra are light brown.
The recorded host plants for this species are Curcuma species.