Deltochilum (Hybomidium) icarus (Olivier, 1789) Scarabaeus icarus Olivier 1789: 155 (none - LECTOTYPE) Distribution. Guyana: Bicknell et al. 2014: table S1. Suriname: Gillet 1911b: 36; Balthasar 1939g: 11 (as D. (Tetraodontides) icarus); Blackwelder 1944: 203; Larsen 2011: 98, 2013: 96; González-Alvarado and Vaz-de-Mello 2014: 456; MHCN; NZCS; RMNH. French Guiana: Paulian 1938: 265 (as D. (Tetraodontides) icarus); Balthasar 1939g: 11 (as D. (Tetraodontides) icarus); Feer 2000: 32; Feer and Pincebourde 2005: 30; Brûlé et al. 2011a: 193, 2014: 183 (as D. icarum); Brûlé and Dalens 2012a annex 4: 18 (as D. icarum); Price and Feer 2012: 327; Brûlé and Touroult 2013: 40; González-Alvarado and Vazde-Mello 2014: 456; Boilly 2015b: 88; MHCN. “Guianas”: Burmeister 1848: 134; Vulcano and Pereira 1964: 649. Brazil (NA): Paulian 1938: 265 (as D. (Tetraodontides) icarus); Vulcano and Pereira 1964: 649; Vaz-de-Mello 2000: 192; Quintero and Roslin 2005: appendix A (NA); Gardner et al. 2008: table S1 (NA); Ratcliffe 2013b: 493 (as D. pseudoicarus) (NA); González-Alvarado and Vaz-de-Mello 2014: 456 (NA); Boilly 2015b: 88 (NA). Venezuela (EO): González-Alvarado and Vaz-de-Mello 2014: 456 (EO); Boilly 2015b: 88. Other: Olivier 1789: 155 (South America - as Scarabaeus icarus); Paulian 1938: 265 (Bolivia, Paraguay - as D. (Tetraodontides) icarus); González-Alvarado and Vaz-de-Mello 2014: 456 (none - designation LECTOTYPE Scarabaeus icarus). Note. Reexamination of the specimens of Deltochilum pseudoicarus mentioned in Ratcliffe (2013b: 493), with the aid of the key provided in González-Alvarado and Vaz-de-Mello (2014: 467), has revealed they are, in fact, D. icarus (B. Ratcliffe, pers. comm.). The distribution of D. icarus appears to be limited to the research area, while D. pseudoicarus is a species restricted to southern and eastern Brazil, northern Argentina, Bolivia and Paraguay. The records of D. icarus in Paulian (1938: 265) from Brazil (Minas Gerais), Bolivia and Paraguay may well belong to D. pseudoicarus.

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 page 78, DOI: 10.5281/zenodo.3678492