Phileurus didymus (Linnaeus, 1758) Scarabaeus didymus Linnaeus 1758: 347 (America) Distribution. Guyana: Erichson 1848: 561; Bodkin 1919: 215; Endrödi 1978: 113; RMNH. Suriname: Endrödi 1978: 113; MHCN; NZCS; RMNH. French Guiana: Endrödi 1978: 113; Duranton 2011: 25; Ponchel 2011: 61; Brûlé and Dalens 2012a annex 4: 18; Brûlé and Touroult 2013: 40; Brûlé et al. 2014: 182; Dupuis 2016b: 110; MHCN. Brazil (NA): Arrow 1937b: 89; Blackwelder 1944: 258; Endrödi 1978: 113 (NA). Venezuela: Endrödi 1978: 113. Other: Linnaeus 1758: 347 (America - as Scarabaeus didymus); Arrow 1937b: 89 (Antilles, Colombia, Ecuador, Mexico, Nicaragua, Panama, Peru, Trinidad and Tobago); Blackwelder 1944: 258 (Colombia, Costa Rica, Ecuador, Guatemala, Mexico, Nicaragua, Panama, Peru, Trinidad and Tobago, West Indies); Endrödi 1978: 113 (Bolivia, Colombia, Costa Rica, Ecuador, Guatemala, Mexico, Nicaragua, Panama, Paraguay, Peru, Saint Vincent, Trinidad and Tobago), 1985a: 726 (Mexico–Paraguay); Lachaume 1992: 54 (Mexico–Paraguay); Ratcliffe 2011: 126 (Mexico–Paraguay, West Indies); Ratcliffe and Cave 2015: 259 (Mexico–Paraguay, Lesser Antilles–Puerto Rico). Note. In Endrödi (1978: 113) it is mentioned that a lectotype of Phileurus didymus is designated by Landin. This is incorrect, as Landin (1956a: 7) mentions a specimen which he regards as not being the [holo]type specimen but only as an authentic Linnean one. He does not appear to give this specimen any special status, nor a we aware of any other publications of Landin’s hand in which he may have done so. As mentioned in ICZN Article 74.6, the designation of a lectotype needs to be published, so even if this specimen would contain a label identifying it as the lectotype, this designation would be invalid because of it being unpublished.

Published as part of Hielkema, Auke J. & Hielkema, Meindert A., 2019, An annotated checklist of the Scarabaeoidea (Insecta: Coleoptera) of the Guianas, pp. 1-306 in Insecta Mundi 732 (732) on pages 223-224, DOI: 10.5281/zenodo.3678492