Deltochilum (Hybomidium) orbignyi ( Blanchard, 1846 )

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 : 78-79

Deltochilum (Hybomidium) orbignyi ( Blanchard, 1846)

Hyboma orbignyi Blanchard 1846: 156 Note. Two presently recognized subspecies of Deltochilum (Hybomidium) orbignyi have been described, one of which occurs in the research area while the other one was thought to occur there due to misidentifications.

§ Subspecies Deltochilum (Hybomidium) orbignyi amazonicum H. W. Bates, 1887

Deltochilum amazonicum H. W. Bates 1887a: 37 ( Peru - LECTOTYPE)

Distribution. Brazil (NA): H. W. Bates 1887a: 37 (as Deltochilum amazonicum ); Kolbe 1905: 534 (as D. gibbosum amazonicum ); Paulian 1938: 262 (as D. (Tetraodontides) amazonicum ); Blackwelder 1944: 202 (as D. amazonicum ); Vulcano and Pereira 1964: 647 (as D. (Hybomidium) amazonicum ); Vazde-Mello 2000: 192 (as D. (Hybomidium) amazonicum ); Quintero and Roslin 2005: appendix A (as D. amazonicum ) (NA); González-Alvarado and Vaz-de-Mello 2014: 450. Venezuela (EO): Ferrer-Paris et al. 2013: 109 (as D. amazonicum ) (EO). “Amazon Basin”: Gillet 1911b: 35 (as D. amazonicum ). Other: H. W. Bates 1887a: 37 (Peru - as D. amazonicum ); Paulian 1938: 262 (Bolivia, Peru - as D. (Tetraodontides) amazonicum ); Blackwelder 1944: 202 (Peru - as D. amazonicum ); Vulcano and Pereira 1964: 647 (Bolivia - as D. (Hybomidium) amazonicum ); Medina et al. 2001: 136 (Colombia - as D. amazonicum ); González-Alvarado and Vaz-de-Mello 2014: 450 (Amazons Pebas [= Peru] - designation LECTOTYPE Deltochilum amazonicum ).

§ Subspecies Deltochilum (Hybomidium) orbignyi orbignyi ( Blanchard, 1846)

Hyboma orbignyi Blanchard 1846: 156 ( Argentina)

Distribution. Guyana: Paulian 1938: 262 (as D. (Tetraodontides) orbignyi ). Suriname: Paulian 1938: 262 (as D. (Tetraodontides) orbignyi ). “Guianas”: Vulcano and Pereira 1964: 650. Brazil: Vulcano and Pereira 1964: 650; Vaz-de-Mello 2000: 192. Venezuela: Paulian 1938: 262 (as D. (Tetraodontides) orbignyi ); Vulcano and Pereira 1964: 650. Other: Blanchard 1846: 156 (Argentina - as Hyboma orbignyi ); Gillet 1911b: 36 (Argentina); Paulian 1938: 262 (Argentina?, Bolivia, Colombia - as D. (Tetraodontides) orbignyi ); Blackwelder 1944: 203 (Argentina); Vulcano and Pereira 1964: 650 (Bolivia, Colombia); Medina et al. 2001: 136 (Colombia); Noriega et al. 2007: 82 (Colombia); González-Alvarado and Vaz-de-Mello 2014: 448 (Argentina, Bolivia).

Note. According to González-Alvarado and Vaz-de-Mello (2014: 448), Deltochilum orbignyi orbignyi is restricted to Argentina and Bolivia. They state that the record of D. orbignyi for Colombia in Medina et al. (2001: 136) actually concerns D. guildingii . We suspect that all other records for the Guianas, Venezuela and Colombia of this species are also referable to D. guildingii . We have no proof for this though, and for now regard these records as misidentifications.