Two new species and new records of Galerucinae (Coleoptera: Chrysomelidae) from Vietnam

Abstract. A new subgenus Paratrichobalya subgen. n. of the genus Trichobalya Weise, 1924 and two new species, Charaea bezdeki sp. n. and Trichobalya (Paratrichobalya) ventrituberculata sp. n., are described from Vietnam. The figures of general view and aedeagus are given for them and related species. Atrachya tricolor Gressit et Kimoto, 1963, Brachyphora nigrovittata Jacoby, 1890, Theopea bicoloroides Lee et Bezdĕk, 2020 and Theopea sekerkai Lee et Bezdĕk, 2018 are recorded for the first time from Vietnam. A new identification key for males of Charaea coomani species-group from Vietnam, Laos, Thailand, Myanmar and Peninsular Malaysia is provided.