Collagenus Ratcliffe and Hardy 2005: 144 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 Ratcliffe and Hardy, 2005 Ratcliffe and Hardy 2005 [192,752,1868,1893] Insecta Dynastidae Collagenus Animalia Coleoptera 207 206 Arthropoda genus      Collagenus Ratcliffe and Hardy 2005: 144