Eurysternus hypocrita Balthasar, 1939
Eurysternus hypocrita Balthasar 1939d: 114 (French Guiana - LECTOTYPE)
= Eurysternus velutinus H. W. Bates 1887a: 39 (partim)
Distribution. Guyana: Forsyth and Gill 1993: 70 (as E. velutinus); Génier 2009: 134; Bicknell et al. 2014: table S1 (as E. hypocrite [sic]); Boilly 2018: 37. Suriname: Balthasar 1939d: 114, 1941c: 340; Halffter and Halffter 1977: 49, 55 (as E. hypocrita; as E. velutinus); Jessop 1985: 1101 (as E. velutinus); Génier 2009: 134; Larsen 2011: 99, 2013: 97; Boilly 2018: 37; MHCN. French Guiana: Gillet 1911b: 26 (as E. velutinus); Balthasar 1939d: 114, 1941c: 340; Blackwelder 1944: 197 (as E. hypocrita; as E. velutinus); Halffter and Halffter 1977: 49, 55 (as E. hypocrita; as E. velutinus); Jessop 1985: 1101 (designation LECTOTYPE Eurysternus hypocrita); Feer and Pincebourde 2005: 30 (as E. velutinus); Génier 2009: 134; Brûlé et al. 2011a: 193; Price and Feer 2012: 327; Boilly 2018: 37; MHCN. Brazil (NA): Balthasar 1939d: 114; Balthasar 1941c: 340; Blackwelder 1944: 197 (as E. hypocrita; as E. velutinus); Halffter and Halffter 1977: 49, 55 (as E. hypocrita; as E. velutinus); Vaz-de-Mello 2000: 193 (as E. (Eurysternodus) velutinus); Gardner et al. 2008: table S1 (as E. velutinus) (NA); Génier 2009: 134 (NA); Ratcliffe 2013b: 493 (NA); Boilly 2018: 37 (NA). Venezuela (EO): Génier 2009: 134 (EO); Boilly 2018: 37. “Amazon Basin”: Gillet 1911b: 26 (as E. velutinus). Other: Gillet 1911b: 26 (Panama - as E. velutinus); Balthasar 1939d: 114 (Colombia, Ecuador, Peru), 1941c: 340 (Colombia, Ecuador, Peru); Blackwelder 1944: 197 (Colombia, Ecuador, Peru - as E. hypocrita; Panama - as E. velutinus); Halffter and Halffter 1977: 49, 55 (Colombia, Ecuador, Peru - as E. hypocrita; Panama, Peru - as E. velutinus); Jessop 1985: 1101 (Ecuador, Peru - as E. velutinus); Medina et al. 2001: 135 (Colombia - as E. velutinus); Génier 2009: 134 (Bolivia, Colombia, Ecuador, Peru); Boilly 2018: 37 (Bolivia, Colombia, Ecuador, Peru).
Note 1. Jessop (1985: 1101) designated the lectotype of Eurysternus hypocrita, but considered this name a synonym of E. velutinus H. W. Bates, 1887 (1887a: 39) . Génier (2009: 134) restored the name. Although E. velutinus is often mentioned for the Guianas, this species is, according to Génier (2009: 132), probably restricted to Costa Rica and Panama. Records from the research area most likely concern E. hypocrita .
Note 2. Génier (2009: 141) notes in his “remarques” the variability within Eurysternus hypocrita and states that it is likely a species complex with possible hybridization.