Euetheola humilis ( Burmeister, 1847 )

Hielkema, Auke J. & Hielkema, Meindert A., 2019, An annotated checklist of the Scarabaeoidea (Insecta: Coleoptera) of the Guianas, Insecta Mundi 732 (732), pp. 1-306 : 207

Euetheola humilis ( Burmeister, 1847)

Heteronychus humilis Burmeister 1847: 93 (“Guianas,” Brazil, Colombia)

Distribution. Guyana: Endrödi 1985a: 234; Scavo and Joly 1998: 177; López-García et al. 2016: 498. Suriname: Endrödi 1969a: 14. French Guiana: Scavo and Joly 1998: 177; Duranton 2011: 19; Ponchel 2011: 61 (as Eutheola [sic] humilis ); Dupuis 2016b: 110. “Guianas”: Burmeister 1847: 93 (as Heteronychus humilis ). Brazil: Burmeister 1847: 93 (as Heteronychus humilis ); Arrow 1937b: 36; Blackwelder 1944: 254 (as Euetheola humilis ; as Ligyrus humilis ); Endrödi 1969a: 14, 1985a: 234; Scavo and Joly 1998: 177; López-García et al. 2016: 498. Venezuela (EO): Blackwelder 1944: 254; Endrödi 1969a: 14, 1985a: 234; Scavo and Joly 1998: 177 (EO); López-García et al. 2016: 498. Other: Burmeister 1847: 93 (Colombia - as Heteronychus humilis ); Arrow 1937b: 36 (Mexico - as Euetheola humilis ); Blackwelder 1944: 254 (Mexico, Panama - as Euetheola humilis ; Argentina - as Ligyrus humilis ); Endrödi 1969a: 14 (Argentina, Bolivia, Colombia, Mexico, Nicaragua, Paraguay, U.S.A., Uruguay), 1985a: 234 (Argentina, Bolivia, Colombia, Mexico, Nicaragua, Paraguay, U.S.A., Uruguay); Scavo and Joly 1998: 177 (Argentina, Bolivia, Colombia, Mexico, Nicaragua, Paraguay, U.S.A., Uruguay); Ratcliffe et al. 2013: 278 (Argentina–U.S.A.); López-García et al. 2015: 463 (Argentina–U.S.A., Colombia), 2016: 498 (Argentina, Belize, Bolivia, Colombia, Costa Rica, Ecuador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Paraguay, U.S.A., Uruguay).

Note. Ligyrus rugiceps LeConte, 1856 (p. 21) is mentioned as a subspecies of Euetheola humilis in Endrödi (1969a: 15 , 1985a: 235) and considered a synonym of E. humilis in Ratcliffe et al. (2013: 278) and López- García et al. (2015: 463, 2016: 498). In Ratcliffe and Cave (2017: 128) this synonymy is revoked, with E. rugiceps believed to be a species endemic to the U.S.A. Based on Ratcliffe et al. (2013) and Ratcliffe and Cave (2017), Euetheola humilis has its northernmost limit in Mexico.