Agonita tricolor is a species of beetle of the family Chrysomelidae. It is found in Taiwan.
Adults reach a length of about 4.9âÂÂ6.3 mm. They are yellowish-brown or reddish-brown, while the antennae are black or blackish-brown and the legs are pale yellow.
The recorded host plants for this species are Smilax china, Smilax bracteata and Smilax lanceifolia.