A review of the sinica species group within the genus Lilioceris (Coleoptera, Chrysomelidae, Criocerinae)

A new species group of the genus Lilioceris Reitter, 1913 is proposed and reviewed, the sinica group. It includes six species: L. gressitti Medvedev, 1958; L. rugata (Baly, 1865); L. sieversi (Heyden, 1887); L. sinica (Heyden, 1887); L. theana (Reitter, 1898) stat. nov.; and L. thibetana (Pic, 1916). Among them, L. theana is resurrected as a valid species from synonymy with L. rugata, and is newly reported from China. Redescriptions, an identification key, figures of habitus and male and female genitalia, geographic distributions, host plants, and habitats (if known) are provided for these species.