Microrhopala rubrolineata is a species of leaf beetle in the family Chrysomelidae. It is found in Central America and North America, where it has been recorded from the United States (Arizona, California, New Mexico, Texas) and Mexico (Baja California, Sonora, Durango).
Adults reach a length of about 3.7-5.3 mm. Adults are black, often with a metallic blue or purple sheen and often with orange markings on the pronotum and/or elytron.
Like other Microrhopala species, they prefer plants with composite flowers, especially the goldenrods and daisy-sunflower types.
These four subspecies belong to the species Microrhopala rubrolineata: