Agonita omoro is a species of beetle of the family Chrysomelidae. It is found in Taiwan and Japan (Ryukyu Islands).
Adults reach a length of about 4.6âÂÂ5.2 mm. They have a blackish-brown or dark brown head, while the antennae are dark brown. The pronotum is dark brown with a darker lateral margin. The elytra are pale yellow.
The recorded host plant for this species is Carex cryptostachys.