Microrhopala rileyiMicrorhopala rileyi is a species of beetle of the family Chrysomelidae. It is found in the United States.DescriptionAdults reach a length of about 4.1-5.5 mm and 5.2-5.8 mm. Adults are black, often with a metallic blue sheen and with orange vittae on the elytron.BiologyThey have been recorded feeding on Helianthus species.