An annotated checklist of the Scarabaeoidea (Insecta: Coleoptera) of the Guianas Author Hielkema, Auke J. Author Hielkema, Meindert A. text Insecta Mundi 2019 2019-10-25 732 732 1 306 journal article 10.5281/zenodo.3678492 8e18452b-1d9d-462e-bac8-8c86eeb4ddc3 1942-1354 3678492 930EAB11-37FA-41B0-980A-1A4736527842 Canthon ( Glaphyrocanthon ) semiopacus Harold, 1868 Canthon semiopacus Harold 1868a: 57 ( French Guiana , Brazil ) Distribution. French Guiana : Harold 1868a: 57 ; Gillet 1911b: 33 ; A. Schmidt 1922a: 80 ; Balthasar 1939e: 208 ; Blackwelder 1944: 201 (as C. semiopacum ); Pereira and Martínez 1956b: 170 (as Geocanthon semiopacus ); Feer 2000: 32 ; Feer and Pincebourde 2005: 30 ; Price and Feer 2012: 327 . “Guianas”: Vulcano and Pereira 1964: 673 (as Geocanthon semiopacus ). Brazil : Harold 1868a: 57 ; A. Schmidt 1922a: 80 ; Blackwelder 1944: 201 (as C. semiopacum ); Pereira and Martínez 1956b: 170 (as Geocanthon semiopacus ); Vulcano and Pereira 1964: 673 (as Geocanthon semiopacus ); Vaz-de-Mello 2000: 191 . Venezuela (EO): Pereira and Martínez 1956b: 170 (as Geocanthon semiopacus ) (EO); Vulcano and Pereira 1964: 673 (as Geocanthon semiopacus ); RMNH (EO). Other: Pereira and Martínez 1956b: 170 (Bolivia, Colombia - as Geocanthon semiopacus ); Vulcano and Pereira 1964: 673 (Bolivia, Colombia - as Geocanthon semiopacus ); Medina et al. 2001: 136 (Colombia).