Lilioceris is a genus of beetles in the leaf beetle family, Chrysomelidae. The genus was first scientifically described in 1912 by Edmund Reitter. Lilioceris belongs to the subfamily Criocerinae and tribe Criocerini (Latreille, 1807). The family of beetles are of importance in horticulture because of their impact on the cultivation of lilies. Lilioceris cheni was introduced into Central Florida by biologists to try to control the spread of invasive air potato plants.