Technical Abstract: Field and laboratory studies were conducted to determine resistance of crape myrtles (Lagerstroemia spp.) to metallic flea beetles (Altica spp.). Damage ratings showed variation among cultivars in susceptibility to beetle feeding, with those cultivars with L. fauriei in their parentage showing the least amount of damage, with a couple of exceptions. Feeding studies in the laboratory corresponded with the damage ratings. The data indicate that the beetle feeds more profusely on certain cultivars of L. indica, such as 'Country Red'; 'Twilight'; and 'Carolina Beauty'; than interspecifc cultivars with L. fauriei in their parentage, such as 'Natchez'; 'Tonto'; and 'Muskogee'. With this information, growers can more effectively target scouting measures to the most susceptible cultivars and breeders can select plants that will require the fewest chemical inputs.