Hilarianus Blanchard 1851: 169 Cherman et al. 2016: 766 An annotated checklist of the Scarabaeoidea (Insecta: Coleoptera) of the Guianas Hielkema, Auke J. Hielkema, Meindert A. Insecta Mundi 2019 2019-10-25 732 732 1 306 Guerin-Meneville, 1831 Guerin-Meneville. Systematic 1831 [192,670,1084,1108] Insecta Melolonthidae Liogenys Animalia Coleoptera 110 109 Arthropoda genus   =   Hilarianus Blanchard 1851: 169-  Cherman et al. 2016: 766(syn. nov.)   Key. Frey 1969